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HFA3624
Data Sheet November 1998 File Number 4066.8
2.4GHz Up/Down Converter
The Intersil 2.4GHz PRISMTM chip set is a highly integrated five-chip solution for RF modems employing Direct Sequence Spread Spectrum (DSSS) signaling. The HFA3624 RF/IF converter is one of the five chips in the PRISMTM chip set (see Figure 1 for the typical application circuit).
TM
Features
* Complete Receive/Transmit Front End * RF Frequency Range . . . . . . . . . . . . . . 2.4GHz to 2.5GHz * IF Operation . . . . . . . . . . . . . . . . . . . . . 10MHz to 400MHz * Single Supply Battery Operation . . . . . . . . . 2.7V to 5.5V * Independent Receive/Transmit Power Enable Mode
The HFA3624 Up/Down converter is a monolithic bipolar device for up/down conversion applications in the 2.4GHz to 2.5GHz range. Manufactured in the Intersil UHF1X process, the device consists of a low noise amplifier and down conversion mixer in the receive section and an up conversion mixer with power preamp in the transmit section. An energy saving power enable control feature assures isolation between the receive and transmit circuits for time division multiplexed systems. The device requires low drive levels from the local oscillator and is housed in a small outline 28 lead SSOP package ideally suited for PCMCIA card applications.
Applications
* Systems Targeting IEEE 802.11 Standard * PCMCIA Wireless Transceiver * Wireless Local Area Network Modems * TDMA Packet Protocol Radios * Part 15 Compliant Radio Links * Portable Battery Powered Equipment
Block Diagram
Ordering Information
PART NUMBER HFA3624IA HFA3624IA96 TEMP. RANGE (oC) -40 to 85 -40 to 85 PACKAGE 28 Ld SSOP Tape and Reel
LNA_RX_OUT
PKG. NO. M28.15
RX BIAS RX_PE RXM_RF RXM_IF+ RXM_IFLO_BY LO_IN LOB
Pinout
HFA3624 (SSOP) TOP VIEW
LNA_RX_VCC2 GND LNA_RX_OUT GND LNA_RX_VCC1 GND LNA_RX_IN PRE_TX_OUT GND 1 2 3 4 5 6 7 8 9 28 RX_PE 27 RX_VCC 26 RXM_RF 25 GND 24 RXM_IF+ 23 RXM_IF22 LO_BY 21 LO_IN 20 TXM_IF19 TXM_IF+ 18 GND 17 TXM_RF 16 TX_VCC 15 TX_PE PRE_TX_IN TX BIAS RXM LNA_RX_IN LNA
PRE_TX_OUT
PRE
TXM
TXM_IFTXM_IF+ TXM_RF TX_PE
PRE_TX_VCC2 10 GND 11 PRE_TX_IN 12 GND 13 PRE_TX_VCC1 14
2-27
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright (c) Intersil Corporation 1999 PRISM(R) is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.
HFA3624
HFA3724
(FILE# 4067)
TUNE/SELECT
HSP3824
(FILE# 4064)
RXI DATA TO MAC CTRL SPREAD DPSK MOD. PRISMTM CHIP SET FILE #4063
HFA3424 (NOTE)
(FILE# 4131)
A/D DESPREAD
DPSK DEMOD
HFA3624 UP/DOWN CONVERTER
(FILE# 4066)
I
RXQ
A/D CCA 802.11 MAC-PHY INTERFACE
/2
0o/90o
M U X
M U X
RSSI
A/D TXI
RFPA
HFA3925
(FILE# 4132)
VCO
VCO
TXQ Q
QUAD IF MODULATOR DUAL SYNTHESIZER
DSSS BASEBAND PROCESSOR
HFA3524 (FILE# 4062)
NOTE: Required for systems targeting 802.11 Specifications.
FIGURE 1. TYPICAL TRANSCEIVER APPLICATION CIRCUIT USING THE HFA3624
For additional information on the PRISMTM chip set, call (407) 724-7800 to access Intersil' AnswerFAX system. When prompted, key in the four-digit document number (File #) of the datasheets you wish to receive.
The four-digit file numbers are shown in Figure 1, and correspond to the appropriate circuit.
2-28
HFA3624
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.0V Voltage on Any Other Pin. . . . . . . . . . . . . . . . . . . -0.3 to VCC +0.3V
Thermal Information
Thermal Resistance (Typical, Note 1) JA (oC/W) 28 Lead Plastic SSOP . . . . . . . . . . . . . . . . . . . . . . . 88 Package Power Dissipation at 70oC 28 Lead Plastic SSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.9W Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . .-65oC TA 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300oC (SSOP - Lead Tips Only)
Operating Conditions
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 5.5V Temperature Range . . . . . . . . . . . . . . . . . . . . . . . -40oC TA 85oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE: 1. JA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications
VCC = +2.7V, LO = 2170MHz, IF = 280MHz, RF = 2450MHz, ZO = 50, Unless Otherwise Specified SYMBOL TEMP (oC) MIN TYP MAX UNITS
PARAMETER
LO INPUT CHARACTERISTICS (LO_IN = 2170MHz/-3dBm, RSLO = 50, tested in both RX and TX modes, all unused inputs and outputs are terminated into 50) LO Input Frequency Range LO Input Drive Level LO Input VSWR LO_f LO_dr LO_SWR 25 25 Full 2.0 -6 -3 1.5 2.49 3 2.0:1 GHz dBm -
RECEIVE LNA CHARACTERISTICS (LNA_RX_IN = 2450MHz/-25dBm, RS = RL = 50, Receive Mode) Receive LNA Frequency Range LNA Noise Figure LNA Power Gain LNA Reverse Isolation (Source = 2450MHz/-25dBm) LNA Output 3rd Order Intercept (LNA_RX_IN = 2449.9MHz, 2450.1MHz / -35dBm) LNA Output 1dB Compression LNA Input VSWR LNA Input Return Loss LNA Output VSWR LNA Output Return Loss LNA_f LNA_NF LNA_PG LNA_ISO LNA_IP3 LNA_P1D LNA_ISWR LNA_IRL LNA_OSWR LNA_ORL 25 25 Full 25 25 25 Full Full Full Full 2.4 13.5 3.5 15.5 30 18 5.5 1.85:1 10.5 1.6 12.7 2.5 2.2:1 8.5 2.0:1 9.5 GHz dB dB dB dBm dBm dB dB
RECEIVE MIXER CHARACTERISTICS (LO_IN = 2170MHz/-3dBm, RXM_RF = 2450MHz/-25dBm, RSLO = 50, RSRF = 50, RLIF = 50 with external matching network (Note 2), Receive Mode) Mixer RF Frequency Range Mixer IF Frequency Range SSB Noise Figure (Note 3) Mixer Power Conversion Gain (Note 2) RXM_RFf RXM_IFf RXM_NF RXM_PG 25 25 25 25 85 Mixer IF Output 3rd Order Intercept (RXM_RF = 2449.9MHz, 2450.1MHz/-30dBm) Mixer IF Output 1dB Compression Mixer RF Input VSWR (2.4GHz to 2.5GHz) Mixer RF Input Return Loss IF Open Collector Output Resistance (IF = 280MHz) IF Open Collector Output Capacitance RXM_IP3 RXM_P1D RXM_SWR RXM_IRL RXM_ROUT RXM_COUT 25 25 25 25 25 25 2.4 10 4 3 15 6 4.0 -5 1.5:1 14.0 1.5 0.4 2.5 400 2.0:1 9.5 GHz MHz dB dB dB dBm dBm dB k pF
2-29
HFA3624
Electrical Specifications
VCC = +2.7V, LO = 2170MHz, IF = 280MHz, RF = 2450MHz, ZO = 50, Unless Otherwise Specified (Continued) SYMBOL RXA_LOR TEMP (oC) 25 MIN TYP 22 MAX UNITS dB
PARAMETER Mixer LO to RF Isolation
RECEIVE LNA/MIXER CASCADED CHARACTERISTICS (-3dB Loss RF Image Filter between LNA and Mixer, LNA_RX_IN = 2450MHz / 25dBm, RLIF = 250 external matching network, (Note 6)) Cascaded Noise Figure Cascaded Power Gain CRX_NF CRX_PG 25 25 85 Cascaded Input IP3 Cascaded Input Compression Point Maximum Input Power (Output may be gain compressed, but functional) CRX_IP3 CRX_P1D CRX_dr 25 25 25 15 14 6.24 18 -14.1 -23.2 +3 dB dB dB dBm dBm dBm
TRANSMIT MIXER CHARACTERISTICS (LO_IN = 2170MHz/-3dBm, TXM_IF+ = 280MHz/-13dBm, RSIF = 50, RSLO = 50, RLRF = 50, Transmit Mode) IF Input Frequency Range IF Input Resistance (IF = 280MHz) IF Input Capacitance (IF = 280MHz) Power Conversion Gain (RSIF = 50) TXM_IFf TXM_RIN TXM_CIN TXM_PG50 25 25 25 25 85 Power Conversion Gain (RSIF = 250) (Notes 4, 5) TXM_PG250 25 85 Transmit Mixer LO Leakage RF Output Frequency Range TXM_RF VSWR (2.4GHz to 2.5GHz) TXM_RF Return Loss Mixer Output 1dB Compression Output SSB Noise Figure (RSIF = 50) Output 3rd Order Intercept (RSIF = 50) Output SSB Noise Figure (RSIF = 250) Output 3rd Order Intercept (RSIF = 250) TXM_LEAK TXM_RFf TXM_OSWR TXM_ORL TXM_P1D TXM_NF50 TXM_IP3_50 TXM_NF250 TXM_IP3_250 25 25 Full Full 25 25 25 25 25 10 -6 -7.5 -0.5 -2 2.4 3 0.5 -3.4 2.1 -20 1.5 14 -10.5 18.3 1.1 14.5 -1.5 400 -18 2.5 2.0:1 9.5 MHz k pF dB dB dB dB dBm GHz dB dBm dB dBm dB dBm
TRANSMIT POWER PRE-AMP CHARACTERISTICS (PRE_IN = 2450MHz/-13dBm, RS = RL = 50, Transmit Mode) Power Pre-Amp Frequency Range Power Gain PRE_f PRE_PG 25 25 85 PRE_AMP Output 1dB Compression PRE_AMP Noise Figure PRE_AMP Output 3rd Order Intercept PRE_AMP Input VSWR (2.4GHz to 2.5GHz) PRE_AMP Input Return Loss PRE_AMP Output VSWR (2.4GHz to 2.5GHz) PRE_AMP Output Return Loss PRE_P1D PRE_NF PRE_IP3 PRE_ISWR PRE_IRL PRE_OSWR PRE_ORL 25 25 25 Full Full Full Full 2.4 10.8 7.8 5.0 12.3 5.6 5.7 15.3 1.3:1 17.7 1.3:1 17.7 2.5 2.0:1 9.5 2.0:1 9.5 GHz dB dB dBm dB dBm dB dB
2-30
HFA3624
Electrical Specifications
VCC = +2.7V, LO = 2170MHz, IF = 280MHz, RF = 2450MHz, ZO = 50, Unless Otherwise Specified (Continued) SYMBOL TEMP (oC) MIN TYP MAX UNITS
PARAMETER
TRANSMIT MIXER/POWER PRE-AMP CASCADED CHARACTERISTICS (TXM_IF+ = 280MHz/-13dBm, -3dB Loss RF Image Filter with no LO suppression between Mixer and Transmit Amp, RL = 50, RSIF = 250 (Note 6)) Cascaded Power Gain CTX_PG 25 85 Cascaded Output P1dB Cascaded Output NF Cascaded Output 3rd Order Intercept Cascaded LO Leakage POWER SUPPLY AND LOGIC CHARACTERISTICS Voltage Supply Range Transmit Mode Supply Current (VCC = 2.7V) VCC TX_2.7ICC 25 25 85 Receive Mode Supply Current (VCC = 2.7V) RX_ICC 25 85 Power Down Current (VCC = 5.5V) Logic Input Low Level Logic Input High Level Logic Low Input Bias Current (VPE = 0V, VCC = 5.5V) Logic High Input Bias Current (VPE = 5.5V, VCC = 5.5V) TX/RX Power Enable Time (Note 7) TX/RX Power Disable Time (Note 7) NOTES: 2. See Figure 5 Test Circuit for 50 IF matching network component values. 3. SSB (Single Side Band) Noise Figure measurement requires the use of an IF Reject/Highpass Filter between the Noise Source and the RXM_RF port. This filter prevents IF input noise from interfering with the Mixer IF output Noise Figure Measurement. 4. Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. 5. Implied limit, production measurement uses 50 termination at pin 19 (RSIF = 50). Typical transmit conversion gain increase of 5.5dB with application circuit Figure 5 (RSIF = 250). 6. See Figure 2 for Typical Application Circuit. 7. Enable/Disable Time Specifications are tested with the external component values shown in the Figure 5 Test Circuit, with an IF frequency of 280MHz. Specifically the AC coupling capacitors on the TXM_IF+ and TXM_IF- pins are biased up to operating voltage from a fixed internal current source at power up. Increasing these AC coupling capacitors above 1000pF will slow Enable Time proportionately. POWER CONTROL TRUTH TABLE STATE Power Down (Receive/Transmit Channels Power Down) Transmit Mode (Receive Channel Power Down) Receive Mode (Transmit Channel Power Down) Not Recommended RX_PE Low Low High High TX_PE Low High Low High ICC_PD VIL VIH IB_LO IB_HI PEt PDt Full Full Full Full Full Full Full 2.7 32 43 10 19 -0.2 2.0 49 18 22.5 0.3 0.25 0.25 5.5 57 64 20.5 24 10 0.8 VCC 1 150 1 1 V mA mA mA mA A V V A A s s CTX_P1D CTX_NF CTX_IP3 CTX_LEAK 25 25 25 25 8 5.5 11.4 -2.0 15 7.1 -8.7 dB dB dBm dB dBm dBm
2-31
HFA3624 Pin Descriptions
PINS 1 3 SYMBOL LNA_RX_VCC2 LNA_RX_OUT DESCRIPTION Receive Channel Low Noise Amplifier Output Stage Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 5pF chip capacitor is recommended. Receive Channel Low Noise Amplifier Output (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with an on chip narrowband tuned circuit. This pin requires AC coupling. Receive Channel Low Noise Amplifier Input Stage Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 200pF chip capacitor is recommended. Receive Channel Low Noise Amplifier Input (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with an on chip narrowband tuned circuit. This pin requires AC coupling. Transmit Channel Power Pre-Amplifier Output (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with on chip narrowband tuned circuit. This pin requires AC coupling. Transmit Channel Power Pre-Amplifier Output Stage Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 200pF chip capacitor is recommended. Transmit Channel Power Pre-Amplifier Input (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with an on chip narrowband tuned circuit. This pin requires AC coupling. Transmit Channel Power Pre-Amplifier Input Stage Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 200pF chip capacitor is recommended. Transmit Channel Power Enable Control Input. TTL compatible input. Refer to "Power Control Truth Table" on previous page. Transmit Channel Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 200pF chip capacitor is recommended. Transmit Channel Mixer RF Output (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with an on chip narrowband tuned circuit. This pin requires AC coupling. Transmit Channel Mixer IF+ Input (10MHz to 400MHz). The TXM_IF+ and TXM_IF- pins form a high input impedance differential pair. Either input (or both inputs for special applications) may be used for the IF signal. Typically the TXM_IF- pin is bypassed to ground with a 470pF capacitor and the TXM_IF+ pin is AC coupled to the transmit IF signal. The high impedance input requires external termination. The specified input impedance is modeled as a resistor in parallel with a capacitor derived from S parameters at 280MHz. The input Impedance will increase at lower IF frequencies. This pin requires AC coupling. Increasing the AC coupling capacitor to larger than 1000pF will degrade Transmit Enable Time. 20 TXM_IFTransmit Channel Mixer IF- Input (10MHz to 400MHz). The TXM_IF+ and TXM_IF- pins form a high input impedance differential pair. Either input (or both for special applications) may be used for the IF signal. Typically the TXM_IF- pin is bypassed to ground with a 470pF capacitor and the TXM_IF+ pin is AC coupled to the transmit IF signal. The high impedance input requires external termination. The specified input impedance is modeled as a resistor in parallel with a capacitor derived from S parameters at 280MHz. The input impedance will increase at lower IF frequencies. This pin requires AC coupling. Increasing the AC coupling capacitor to larger than 1000pF will degrade Transmit Enable Time. 21 LO_IN Local Oscillator Input (2000MHz to 2490MHz). The LO_IN and LO_BY pins form a differential pair with a mutual broadband 50 impedance. Refer to the LO_BY pin for details. The recommended LO power is 3dBm, however usable performance is obtained for the range -6dBm to +3dBm. The LO_IN pin requires AC coupling. Local Oscillator Input Bypass (2000MHz to 2490MHz). The LO_IN and LO_BY pins form a differential pair with a mutual broadband 50 input impedance. The LO_BY pin can be used as a signal input, but may have slightly degraded performance due to a clamp circuit to GND. Typically the LO_BY pin is bypassed to GND with a 5pF capacitor. The LO_BY pin requires AC coupling.
5 7
LNA_RX_VCC1 LNA_RX_IN
8
PRE_TX_OUT
10 12
PRE_TX_VCC2 PRE_TX_IN
14 15 16 17
PRE_TX_VCC1 TX_PE TX_VCC TXM_RF
19
TXM_IF+
22
LO_BY
2-32
HFA3624 Pin Descriptions
PINS 23 (Continued) DESCRIPTION Receive Channel Mixer IF- Output (10MHz to 400MHz). The RXM_IF+ and RXM_IF- pins form a complimentary open collector output driver pair. The open collector outputs require an external load to VCC not to exceed 500, for the Single Ended IF case shown in Figure 3, or 1k for the Differential IF cases shown in Figures 2 and 4. This pin requires AC coupling. Receive Channel Mixer IF+ Output (10MHz to 400MHz) The RXM_IF+ and RXM_IF- pins form a complimentary open collector output driver pair. The open collector outputs require an external load to VCC not to exceed 500, for the Single Ended IF case shown in Figure 3, or 1k for the Differential IF cases shown in Figures 2 and 4. This pin requires AC coupling. Receive Channel Mixer RF Input (2400MHz to 2500MHz). The nominal impedance of 50, over the operating frequency range, is achieved with an on chip narrowband tuned circuit. This pin requires AC coupling. Receive Channel Positive Power Supply. Use high quality decoupling capacitors right at the pin. A 200pF chip capacitor is recommended. Receive Channel Power Enable Control Input. TTL compatible input. Refer to "Power Control Truth Table" on previous page. Circuit Ground Pins (Qty 8). Internally connected.
SYMBOL RXM_IF-
24
RXM_IF+
26 27 28 2, 4, 6, 9, 11, 13, 18, 25
RXM_RF RX_VCC RX_PE GND
Typical Application Circuits
-3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata RECEIVE ENABLE C32 C12 RXA_VCC2 GND RXA_OUT C13 GND RXA_VCC1 RF INPUT 2450MHz 50 RF OUTPUT 2450MHz 50 GND C41 RXA_IN TXA_OUT C40 C11 GND TXA_VCC2 GND TXA_IN GND TXA_VCC1 C10 C15 TRANSMIT ENABLE -3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TX BIAS TXA TXM RXA RXM RX BIAS 28 27 26 25 24 RX_PE RX_VCC RXM_RF GND RXM_IF+ 22 L46 C45 L47 C25 C51 R50 C48 IF OUTPUT 280MHz 250 C21
VCC = 2.7V C14
HFA3624
LOB
RXM_IF- 22 23 LO_BY C27 22 LO_IN 21 TXM_IF- C28 20 TXM_IF+ 19 GND 18 C23 TXM_RF 17 TX_VCC 16 TX_PE C19 15
C26
LO INPUT 2170MHz 50 R35 250 IF INPUT 280MHz, 250
C37
FIGURE 2. DIFFERENTIAL TO SINGLE ENDED IF OUTPUT TRANSLATION WITH 250 IF IMPEDANCE
2-33
HFA3624 Typical Application Circuits
(Continued)
-3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata RECEIVE ENABLE C32 C12 RXA_VCC2 GND RXA_OUT C13 GND RXA_VCC1 RF INPUT 2450MHz 50 RF OUTPUT 2450MHz 50 GND C41 RXA_IN TXA_OUT C40 C11 GND TXA_VCC2 GND TXA_IN GND TXA_VCC1 C10 C15 TRANSMIT ENABLE -3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TX BIAS TXA TXM RXA RXM RX BIAS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 RX_PE RX_VCC RXM_RF GND RXM_IF+ RXM_IFLO_BY LO_IN TXM_IF- C28 TXM_IF+ GND TXM_RF TX_VCC TX_PE C19 C23 C37 R35 250 C26 C27 C25 22 L46 R50 C51 IF OUTPUT 280MHz 250 C21
VCC = 2.7V C14
HFA3624
LOB
LO INPUT 2170MHz 50 IF INPUT 280MHz, 250
C48
FIGURE 3. SINGLE ENDED IF OUTPUT WITH 250 IF IMPEDANCE
2-34
HFA3624 Typical Application Circuits
(Continued)
-3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata RECEIVE ENABLE C31 C12 RXA_VCC2 GND RXA_OUT C13 GND RXA_VCC1 RF INPUT 2450MHz 50 RF OUTPUT 2450MHz 50 GND C41 RXA_IN TXA_OUT C40 C11 GND TXA_VCC2 GND TXA_IN GND TXA_VCC1 C15 C10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TX BIAS TXA TXM RXA RXM RX BIAS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 RX_PE RX_VCC RXM_RF GND RXM_IF+ RXM_IFLO_BYC27 LO_IN TXM_IF- C28 TXM_IF+ GND TXM_RF TX_VCC TX_PE C19 C23 C37 R35 250 C26 C25 22 22 C27 LO INPUT 2170MHz 50 IF INPUT 280MHz 250 R50 C4 IF OUTPUT 280MHz XFMR 250 500:250 (2:1) C21 C32
VCC = 2.7V C14
HFA3624
LOB
TRANSMIT ENABLE -3dB/50 BPF 2450MHz LFJ30-03B2442B084 muRata
FIGURE 4. DIFFERENTIAL TO SINGLE ENDED IF OUTPUT TRANSLATION USING TRANSFORMER INTO 250
2-35
HFA3624 Typical Application Circuits
(Continued)
RECEIVE ENABLE VCC = 2.7V C15 5pF C16 5pF RECEIVE AMP RF OUTPUT 50 C3 5pF C7 200pF LNA_VCC2 GND LNA_OUT GND LNA_VCC1 SIG. GEN. 2450MHz 50 TRANSMIT AMP RF OUTPUT 50 C8 5pF C9 5pF C26 200pF C4 5pF GND LNA_IN PRE_OUT GND TXA_VCC2 GND PRE_IN GND PRE_VCC1 C19 200pF 1 2 3 4 5 6 7 8 9 10 11 12 13 14 TX BIAS TXM LNA RX BIAS RXM 28 27 26 25 24 RX_PE RX_VCC RXM_RF GND RXM_IF+ C14 5pF 22 C17 2.7pF R6 2k C6 470pF L3 12nH C13 2.2F C11 2200pF C1 200pF C10 200pF SIG. GEN. 2450MHz 50 IF OUTPUT 280MHz 50 C5 6.8pF
HFA3624
PRE LOB AMP
SIG. GEN. 2450MHz 50
22 RXM_IF23 LO_BY C20 22 C28 LO_IN 10pF 21 C24 TXM_IF10pF 20 TXM_IF+ 470pF 19 GND C22 C21 18 5pF 470pF TXM_RF 17 TX_VCC 16 TX_PE 15 C23 200pF
L2 39nH L1 68nH
C18 SIG. GEN. 470pF 2170MHz 50 L4 47nH R5 250 C25 1.5pF
SIG. GEN. 280MHz 50 TRANSMIT. MIXER RF OUTPUT 50
C2 200pF TRANSMIT ENABLE
FIGURE 5. OPTIMIZED LAB EVALUATION CIRCUIT
Typical Performance Curves
16 VCC = 2.7V TA = 25oC 1dB COMPRESSION POINT CONVERSION GAIN (dB) -3 VCC = 2.7V TA = 25oC
15 POWER GAIN (dB)
-4
1dB COMPRESSION POINT
14 1dB 13
-5
1dB
-6
12 -25 -21 -17 -13 -9 -5
-7 -20 -17 -14 -11 -8 -5
IF INPUT POWER (dBm)
IF INPUT POWER (dBm)
FIGURE 6. TRANSMIT PRE-AMP 1dB COMPRESSION
FIGURE 7. TRANSMIT MIXER 1dB COMPRESSION
2-36
HFA3624 Typical Performance Curves
VCC = 2.7V TA = 25oC 10 20 MAG (dB) MAG (dB) 0 DUT + FIXTURE DUT
(Continued)
30
VCC = 2.7V TA = 25oC
10
-10
0 -20 DUT
DUT + FIXTURE
1.0
2.0 FREQUENCY (GHz)
3.0
1.0
2.0 FREQUENCY (GHz)
3.0
FIGURE 8. PRE-AMPLIFIER S11 LOG MAG INPUT RETURN LOSS
FIGURE 9. PRE-AMPLIFIER S21 LOG MAG FORWARD GAIN
VCC = 2.7V TA = 25oC -20 MAG (dB) DUT MAG (dB) 0
VCC = 2.7V TA = 25oC
-30 DUT + FIXTURE -40
-10
-20 DUT DUT + FIXTURE
-50 1.0 2.0 FREQUENCY (GHz) 3.0
-30 1.0 2.0 FREQUENCY (GHz) 3.0
FIGURE 10. PRE-AMPLIFIER S12 LOG MAG REVERSE ISOLATION
FIGURE 11. PRE-AMPLIFIER S22 LOG MAG OUTPUT RETURN LOSS
VCC = 2.7V TA = 25oC 10
30
VCC = 2.7V TA = 25oC DUT
20 MAG (dB) DUT MAG (dB) 0
10 DUT + FIXTURE 0
-10
-20
DUT + FIXTURE -10
1.0
2.0 FREQUENCY (GHz)
3.0
1.0
2.0 FREQUENCY (GHz)
3.0
FIGURE 12. LNA S11 LOG MAG INPUT RETURN LOSS
FIGURE 13. LNA S21 LOG MAG FORWARD GAIN
2-37
HFA3624 Typical Performance Curves
0 VCC = 2.7V TA = 25oC
(Continued)
10
VCC = 2.7V TA = 25oC
-20 MAG (dB)
DUT + FIXTURE MAG (dB)
0 DUT -10
-40
-60
DUT
-20 DUT + FIXTURE
-80 1.0 2.0 FREQUENCY (GHz) 3.0
-30 1.0 2.0 FREQUENCY (GHz) 3.0
FIGURE 14. LNA S12 LOG MAG REVERSE ISOLATION
VCC = 2.7V TA = 25oC 10
FIGURE 15. LNA S22 LOG MAG OUTPUT RETURN LOSS
0 VCC = 2.7V, (NOTE) TA = 25oC -10
MAG (dB)
MAG (dB)
0
-20
-10
-30
-20
-40
1.0
2.0 FREQUENCY (GHz)
3.0
230
250
270
290
310
330
FREQUENCY (MHz)
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 16. TRANSMIT MIXER S22 LOG MAG RF OUTPUT RETURN LOSS
2.3 VCC = 2.7V TA = 25oC 10
FIGURE 17. TRANSMIT MIXER S11 LOG MAG IF INPUT RETURN LOSS
0.3 MAG (dB)
-1.7
MAG (dB) VCC = 2.7V, (NOTE) TA = 25oC, LO = 2.17GHz 2.45 FREQUENCY (GHz) 2.5
0
-10
-3.7 -20
2.4
1.0
2.0 FREQUENCY (GHz)
3.0
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 18. TRANSMIT MIXER CONVERSION GAIN vs IF FREQUENCY SWEEP
FIGURE 19. RECEIVE MIXER S11 LOG MAG RF INPUT RETURN LOSS
2-38
HFA3624 Typical Performance Curves
VCC = 2.7V TA = 25oC
(Continued)
7 VCC = 2.7V, TA = 25oC RF = 2.45GHz
5 MAG (dB) 0 MAG (dB) 250 270 290 310 330 3
-10
1 -20
230
230
250
270
290
310
330
FREQUENCY (MHz)
FREQUENCY (MHz)
FIGURE 20. RECEIVE MIXER S22 LOG MAG IF OUTPUT RETURN LOSS
FIGURE 21. RECEIVE MIXER CONVERSION GAIN vs LO FREQUENCY SWEEP
VCC = 2.7V TA = 25oC 0
VCC = 2.7V TA = 25oC 0
MAG (dB)
-10
MAG (dB)
-10
-20
-20
-30
-30
1.0
2.0 FREQUENCY (GHz)
3.0
1.0
2.0 FREQUENCY (GHz)
3.0
FIGURE 22. LO_IN S11 LOG MAG RECEIVE MODE LO INPUT RETURN LOSS
FIGURE 23. LO_IN S11 LOG MAG TRANSMIT MODE LO INPUT RETURN LOSS
19 THIRD ORDER INTERCEPT (dBm) TA = 25oC 18 5.5V 17 GAIN (dB) 4.0V 16 15 14 13 2.3 3.0V 2.7V
23 22 21 20 19
TA = 25oC, F1 -F2 = 200kHz 5.5V
4.0V 18 3.0V 17 2.7V 16 15 2.3
2.35
2.4
2.45
2.5
2.55
2.6
2.35
2.4
2.45
2.5
2.55
2.6
FREQUENCY (GHz)
FREQUENCY (GHz)
FIGURE 24. LOW NOISE AMPLIFIER GAIN vs FREQUENCY
FIGURE 25. LOW NOISE AMPLIFIER IP3 vs FREQUENCY
2-39
HFA3624 Typical Performance Curves
4.3 4.2 4.1 NOISE FIGURE (dB) 13 4.0 GAIN (dB) 3.9 3.8 3.7 3.6 3.5 3.4 2.3 4.0V 3.0V 2.7V 2.35 2.4 2.45 2.5 2.55 2.6 9 8 2.3 5.5V 12 11 10 2.7V 5.5V TA = 25oC 14
(Continued)
15 4.0V 3.0V TA = 25oC
2.35
2.4
2.45
2.5
2.55
2.6
FREQUENCY (GHz)
FREQUENCY (GHz)
FIGURE 26. LOW NOISE AMPLIFIER NOISE FIGURE vs FREQUENCY
10 TA = 25oC 9 1dB COMPRESSION (dBm) 8 7 6 5 4 3 2.3 2.35 2.4 2.45 2.5 2.55 2.6 FREQUENCY (GHz) 2.7V 4.0V GAIN (dB) 3.0V 5.5V
FIGURE 27. PRE-AMPLIFIER GAIN vs FREQUENCY
7.3 7.2 7.1 7.0 6.9 6.8 6.7 6.6 6.5 6.4 6.3 6.2 2.3 2.35 2.4 2.45 2.5 2.55 2.6 3.0V 2.7V 5.5V 4.0V TA = 25oC IF = 280MHz
RF FREQUENCY (GHz)
FIGURE 28. PRE-AMPLIFIER RF OUTPUT 1dB COMPRESSION vs FREQUENCY
FIGURE 29. RECEIVE MIXER GAIN vs RF FREQUENCY FOR FIXED IF FREQUENCY
7.0 THIRD ORDER INTERCEPT (dBm) 6.5 6.0 4.0V 5.5 3.0V 5.0 4.5 4.0 3.5 3 2.3 2.7V TA = 25oC 5.5V NOISE FIGURE (dB) F1 -F2 = 200kHz IF = 280MHz
16.5 TA = 25oC, IF = 280MHz 16.0 15.5 5.5V 15.0 4.0V 14.5 14.0 13.5 2.3 3.0V 2.7V
2.35
2.4
2.45
2.5
2.55
2.6
2.35
2.4
2.45
2.5
2.55
2.6
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
FIGURE 30. RECEIVE MIXER IP3 vs RF FREQUENCY
FIGURE 31. RECEIVE MIXER SSB NOISE FIGURE vs RF FREQUENCY
2-40
HFA3624 Typical Performance Curves
-24.0 -24.5 -25.0 -25.5 POWER (dBm) -26.0 -26.5 -27.0 -27.5 -28.0 -28.5 -29.0 2.02 2.7V 3.0V 4.0V 5.5V POWER (dBm) -36 -37 -38 -39 -40 -41 2.02 2.7V 3.0V TA = 25oC, LO_IN = -3dBm -35 5.5V 4.0V
(Continued)
-34 TA = 25oC, LO_IN = -3dBm
2.07
2.12 2.17 2.22 LO FREQUENCY (GHz)
2.27
2.32
2.07
2.12 2.17 2.22 LO FREQUENCY (GHz)
2.27
2.32
FIGURE 32. RECEIVE MIXER LO TO RF PORT LEAKAGE vs LO FREQUENCY
6 TA = 25oC, IF = 280MHz (NOTE) 5 5.5V 4 GAIN (dB) 3 2 2.7V 1 0 -1 2.3 2.35 2.4 2.45 2.5 2.55 2.6 RF FREQUENCY (GHz) 4.0V 3.0V
FIGURE 33. RECEIVE MIXER LO TO IF PORT LEAKAGE vs LO FREQUENCY
-6 5.5V -7 1dB COMPRESSION (dBm) -8 -9 -10 2.7V -11 -12 -13 2.3 4.0V TA = 25oC, IF = 280MHz (NOTE)
3.0V
2.35
2.4 2.45 2.5 RF FREQUENCY (GHz)
2.55
2.6
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 34. TRANSMIT MIXER GAIN vs RF FREQUENCY
16.5 TA = 25oC, IF = 280MHz (NOTE) 16 NOISE FIGURE (dB) 15.5 15 5.5V 14.5 4.0V 14 13.5 13 2.3 3.0V 2.7V
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 35. TRANSMIT MIXER OUTPUT 1dB COMPRESSION vs RF FREQUENCY
-17 -18 -19 -20 POWER (dBm) -21 -22 -23 -24 -25 -26 -27 -28 2.35 2.4 2.45 2.5 RF FREQUENCY (GHz) 2.55 2.6 -29 -30 2.02 2.7V 3.0V 4.0V 5.5V TA = 25oC, LO_IN = -3dBm
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 36. TRANSMIT MIXER SSB NOISE FIGURE vs RF FREQUENCY
2.07
2.12
2.17
2.22
2.27
2.32
LO FREQUENCY (GHz)
FIGURE 37. TRANSMIT MIXER LO TO RF PORT LEAKAGE vs LO FREQUENCY
2-41
HFA3624 Typical Performance Curves
-34 -35 -36 -37 POWER (dBm) TA = 25oC, LO_IN = -3dBm 35 30
(Continued)
40
ICC (mA)
-38 -39 -40 -41 -42 -43 -44 2.02
2.7V 3.0V
25 20 15
+5.5V
4.0V 5.5V
+2.7V
2.07
2.12 2.17 2.22 RF FREQUENCY (GHz)
2.27
2.32
10 -40 -30 -20 -10
0 10 20 30 40 TEMPERATURE (oC)
50
60
70
85
FIGURE 38. TRANSMIT MIXER LO TO IF PORT LEAKAGE vs LO FREQUENCY
FIGURE 39. RECEIVE MODE ICC vs TEMPERATURE
120 110 100 90 ICC (mA) 80 70 60 50 40 30 20 -40 -30 -20 -10 0 10 20 30 40 TEMPERATURE (oC) 50 60 70 85 +2.7V +5.5V GAIN (dB)
17.5 17.0 +5.5V 16.5 16.0 15.5 15.0 14.5 14.0 -40 -30 -20 -10 +2.7V
0 10 20 30 40 TEMPERATURE (oC)
50
60
70
85
FIGURE 40. TRANSMIT MODE ICC vs TEMPERATURE
FIGURE 41. LOW NOISE AMPLIFIER GAIN vs TEMPERATURE
8.0 7.5 +5.5V 7.0 GAIN (dB) 6.5 6.0 5.5 5.0 4.5 -40 -30 -20 -10 +2.7V GAIN (dB) IF = 280MHz, RF = 2.45GHz LO = -3dBm
15 14 13 12 11 10 9 8 7 6 0 10 20 30 40 50 60 70 85 5 -40 -30 -20 -10 0 10 20 30 40 50 60 70 85 +5.5V +2.7V
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE 42. RECEIVE MIXER GAIN vs TEMPERATURE
FIGURE 43. PRE-AMPLIFIER GAIN vs TEMPERATURE
2-42
HFA3624 Typical Performance Curves
4 3 2 GAIN (dB) 1 +2.7V 0 -1 -2 -40 -30 -20 -10 IF = 280MHz, RF = 2.45GHz LO = -3dBm 0 10 20 30 40 50 60 70 85
(Continued)
-24.5 LO_IN = -3dBm AT 2.17GHz +5.5V POWER (dBm) -25.0 -25.5 +5.5V -26.0 -26.5 -27.0 -27.5 -40 -30 -20 -10 +2.7V
0
10
20
30
40
50
60
70
85
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE 44. TRANSMIT MIXER GAIN vs TEMPERATURE
FIGURE 45. RECIEVE MIXER LO TO RF PORT LEAKAGE vs TEMPERATURE
-20 -21 -22 POWER (dBm) -23 -24 -25 -26 -27 -28 -29 -30 -40 -30 -20 -10 0 10 20 30 40 50 60 70 85 +5.5V POWER (dBm) LO_IN = -3dBm AT 2.17GHz
-26.0 LO_IN = -3dBm AT 2.17GHz -26.5 +2.7V -27.0 +5.5V -27.5 -28.0 +2.7V -28.5 -29.0 -40 -30 -20 -10
0
10
20
30
40
50
60
70
85
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE 46. TRANSMIT MIXER LO TO RF PORT LEAKAGE vs TEMPERATURE
FIGURE 47. RECEIVE MIXER LO TO IF PORT LEAKAGE vs TEMPERATURE
5.5 THIRD ORDER INTERCEPT (dBm)
7.3 7.2 7.1 7.0 GAIN (dB) 6.9 6.8 6.7 6.6 6.5 6.4 6.3 6.2 -6 -5 -4 -3 -2 -1 0 1 2 3 TA = 25oC, IF = 280MHz RF = 2.45GHz
5 4.5 4 3.5 3 2.5 2 1.5 -6 TA = 25oC, IF = 280MHz RF = 2.45GHz, F1 - F2 = 200kHz -5 -4 -3 -2 -1 0 1 2 3
LO DRIVE (dBm)
LO DRIVE (dBm)
FIGURE 48. RECEIVE MIXER GAIN vs LO DRIVE
FIGURE 49. RECEIVE MIXER IP3 vs LO DRIVE
2-43
HFA3624 Typical Performance Curves
16.5 16 NOISE FIGURE (dB) 15.5 GAIN (dB) 2.20 2.15 2.10 2.05 2.00 -6 15 14.5 14 13.5 -6 TA = 25oC, IF = 280MHz LO = 2.17GHz
(Continued)
2.35 2.30 2.25 TA = 25oC, RF = 2.45GHz IF = 280MHz (NOTE)
-5
-4
-3
-2
-1
0
1
2
3
-5
-4
-3
-2
-1
0
1
2
3
LO DRIVE (dBm)
LO DRIVE (dBm)
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 50. RECEIVE MIXER SSB NOISE FIGURE vs LO DRIVE FIGURE 51. TRANSMIT MIXER GAIN vs LO DRIVE
-9.2 -9.3 1dB COMPRESSION (dBm) -9.4 GAIN (dB) -9.5 -9.6 -9.7 -9.8 -9.9 -10.0 -6 TA = 25oC, RF = 2.45GHz IF = 280MHz (NOTE)
4.0 3.5 3.0
TA = 25oC, RF = 2.45GHz (NOTE)
+5.5V 2.5 2.0 1.5 1.0 0.5 0 -5 -4 -3 -2 -1 0 LO DRIVE (dBm) 1 2 3 10 20 40 60 80 100 200 400 IF FREQUENCY (MHz) +2.7V +4.0V +3.0V
NOTE: Transmit mixer measured with Impedance Transform Network 250 at device to 50 at the source. Refer to Figure 5, pin 19. FIGURE 52. TRANSMIT MIXER OUTPUT 1dB COMPRESSION vs LO DRIVE
NOTE: TXM_IF input matching network modified for each IF frequency as described in Table 1. FIGURE 53. TRANSMIT MIXER GAIN vs IF FREQUENCY
TABLE 1. TXM_IF INPUT 50 TO 250 IMPEDANCE TRANSFORM CIRCUIT COMPONENT VALUES IF FREQ 10MHz 20MHz 40MHz 70MHz 100MHz 200MHz 280MHz 400MHz NOTE: Refer to Figure 5, pin 19. LO CAPACITORS C20, C28 5pF 5pF 5pF 5pF 7pF 7pF 10pF 10pF IF BYPASS C24, C21 0.1F 0.022F 0.012F 0.0068mF 0.0033mF 1000pF 470pF 330pF IF SHUNT C C25 150pF 68pF 33pF 18pF 12pF 3.9pF 1.5pF 0 IF SERIES L L4 1.2H 680nH 330nH 180nH 120nH 68nH 47nH 33nH
2-44
HFA3624
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site http://www.intersil.com
Sales Office Headquarters
NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (407) 724-7000 FAX: (407) 724-7240 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee 1130 Brussels, Belgium TEL: (32) 2.724.2111 FAX: (32) 2.724.22.05 ASIA Intersil (Taiwan) Ltd. 7F-6, No. 101 Fu Hsing North Road Taipei, Taiwan Republic of China TEL: (886) 2 2716 9310 FAX: (886) 2 2715 3029
2-45

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