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RF2317
3
Typical Applications * CATV Distribution Amplifiers * Cable Modems * Broadband Gain Blocks * Laser Diode Driver * Return Channel Amplifier * Base Stations
LINEAR CATV AMPLIFIER
3
-A0.157 0.150 0.008 0.004 0.020 0.014
The RF2317 is a general purpose, low-cost high-linearity RF amplifier IC. The device is manufactured on an advanced Gallium Arsenide Heterojunction Bipolar Transistor (HBT) process, and has been designed for use as an easily cascadable 75 gain block. The gain flatness of better than 0.5dB from 50MHz to 1000MHz, and the high linearity, make this part ideal for cable TV applications. Other applications include IF and RF amplification in wireless voice and data communication products operating in frequency bands up to 3GHz. The device is selfcontained with 75 input and output impedances and requires only two external DC biasing elements to operate as specified.
0.020 REF
0.393 0.386 0.034 REF 0.068 0.064
0.244 0.229 8 MAX 0 MIN
0.068 0.053
0.034 0.016
0.009 0.007
Optimum Technology Matching(R) Applied
Si BJT Si Bi-CMOS
u
Package Style: CJ2BAT0
GaAs HBT SiGe HBT
GaAs MESFET Si CMOS
Features * DC to 3.0GHz Operation * Internally Matched Input and Output * 15dB Small Signal Gain * 4.9dB Noise Figure * +26dBm Output Power * Single 9V to 12V Power Supply
NC 1 GND 2 GND 3 RF IN 4 NC 5 GND 6 GND 7 NC 8
16 NC 15 GND 14 GND 13 RF OUT 12 NC 11 GND 10 GND 9 NC
Ordering Information
RF2317 RF2317 PCBA RF2317 PCBA Linear CATV Amplifier Fully Assembled Evaluation Board - 50 Fully Assembled Evaluation Board - 75 Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com
Functional Block Diagram
RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA
Rev A16 010816
3-13
LINEAR CATV AMPLIFIERS
Product Description
RF2317
Absolute Maximum Ratings Parameter
Device Current Input RF Power Output Load VSWR Ambient Operating Temperature Storage Temperature
Rating
250 +18 20:1 -40 to +85 -40 to +150
Unit
mA dBm C C Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s).
3
LINEAR CATV AMPLIFIERS
Parameter
Overall (50)
Frequency Range Gain Noise Figure Input VSWR
Min.
DC 13.5
Specification Typ. Max.
3000 15.0
Unit
Condition
T=25 C, ICC =180mA, RC =11, 50 System 3dB Bandwidth From 100MHz to 1000MHz Appropriate values for the DC blocking capacitors and bias inductor are required to maintain this VSWR at the intended operating frequency range. Appropriate values for the DC blocking capacitors and bias inductor are required to maintain this VSWR at the intended operating frequency range. At 100MHz At 500MHz At 900MHz F1 =400MHz, F2 =500MHz, FOUT =100MHz At 100MHz At 500MHz At 900MHz At 100MHz At 500MHz At 900MHz
14.5 4.9 1.7
MHz dB dB
Output VSWR
2.2
Output IP3 +37 Output IP2 Output P1dB
Saturated Output Power
Reverse Isolation
+42 +40 +38 +63 +25.5 +24 +22 +26 +25 +23 20 47 153 8.6x102 1.8x10 54 177 99
5
dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dB C/W C years years C/W C years years V V mA
Thermal
ThetaJC Maximum Junction Temperature Mean Time Between Failures ThetaJC Maximum Junction Temperature Mean Time Between Failures ICC=150mA, PDISS =1.3W, TAMB=85C TAMB =+85C TAMB =+25C ICC=180mA, PDISS =1.7W, TAMB=85C TAMB =+85C TAMB =+25C On pin 13, ICC =150mA On pin 13, ICC =180mA Actual current determined by VCC and RS
9.4x103
Power Supply
Device Voltage Operating Current Range 100 8.3 8.7 180
3-14
Rev A16 010816
RF2317
Parameter
Overall (75)
Frequency Range Gain Noise Figure Input VSWR DC 15.0 5.3 1.1:1 3000 MHz dB dB
Specification Min. Typ. Max.
Unit
Condition
T=25C, ICC =180mA, RC =11, 75 System 3dB Bandwidth From 100MHz to 1000MHz Appropriate values for the DC blocking capacitors and bias inductor are required to maintain this VSWR at the intended operating frequency range. Appropriate values for the DC blocking capacitors and bias inductor are required to maintain this VSWR at the intended operating frequency range. At 100MHz At 500MHz At 900MHz F1 =400MHz, F2 =500MHz, FOUT =100MHz At 100MHz At 500MHz At 900MHz At 100MHz At 500MHz At 900MHz 10dBmV per channel, flat, at the input of the amplifier; ICC =150mA, VCC =10.6V At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz 10dBmV per channel, flat, at the input of the amplifier; ICC =150mA, VCC =10.6V At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz
3
LINEAR CATV AMPLIFIERS
Output VSWR
1.5:1
Output IP3 +37 Output IP2 Output P1dB
Saturated Output Power
Reverse Isolation
+42 +40 +38 +63 +24 +23 +21 +25 +24 +22 20
dBm dBm dBm dBm dBm dBm dBm dBm dBm dBm dB
79 Channels
XMOD -110 -78 -75 -88 -88 -88 -93 -78 -70 -68 -78 -85 dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc
CTB
CSO+1.25MHz
CSO-1.25MHz
110 Channels
XMOD -91 -77 -75 -86 -85 -85 -92 -78 -71 -63 -68 -81 dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc
CTB
CSO+1.25MHz
CSO-1.25MHz
Rev A16 010816
3-15
RF2317
Pin 1 2 3 4 Function NC GND GND RF IN Description
This pin is internally not connected. Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Each ground pin should have a via to the ground plane. Same as pin 2. RF input pin. This pin is NOT internally DC blocked. A DC blocking capacitor, suitable for the frequency of operation, should be used in most applications. DC coupling of the input is not allowed, because this will override the internal feedback loop and cause temperature instability. This pin is internally not connected. Same as pin 2. Same as pin 2. This pin is internally not connected. This pin is internally not connected. Same as pin 2. Same as pin 2. This pin is internally not connected. RF output and bias pin. Because DC is present on this pin, a DC blocking capacitor, suitable for the frequency of operation, should be used in most applications. For biasing, an RF choke in series with a resistor is needed. The DC voltage on this pin is typically 8.3V with a current of 150mA. See device voltage versus device current plot. In lower power applications the value of RC can be increased to lower the current and VD on this pin.
RF OUT
Interface Schematic
3
5 6 7 8 9 10 11 12 13 NC GND GND NC NC GND GND NC RF OUT
LINEAR CATV AMPLIFIERS
RF IN
14 15 16
GND GND NC
Same as pin 2. Same as pin 2. This pin is internally not connected.
3-16
Rev A16 010816
RF2317
Application Schematic 5MHz to 50MHz Reverse Path
VCC 1 2 3 18 nF RF IN 4 5 6 7 8 NOTES: Gain Flatness <0.5 dB Input and Output Return Loss >20 dB in 75 system 13 12 11 10 9 16 15 14 11 10 nF
39H
18 nF RF OUT
3
LINEAR CATV AMPLIFIERS
VCC
Evaluation Board Schematic - 50
(Download Bill of Materials from www.rfmd.com.)
P1 P1-1 1 2 3 VCC GND NC 2 3 50 strip C1 1 nF 4 5 6 7 8 15 14 13 12 11 10 9 L1 3.3H C2 1 nF 50 strip R1 51 R2 51 R3 51 R4 51 R5 51 C3 220 pF C4 100 nF C5 1 F 1 16 RT = 10.2
J1 RF IN
J2 RF OUT
2317400 Rev -
Rev A16 010816
3-17
RF2317
Evaluation Board Schematic - 75
VCC
P1 P1-1 1 2 VCC GND NC C1 1 nF 2 3 4 5 6 7 8 15 14 13 12 11 10 9 1 16 R4 56
C3 0.1 uF
3
LINEAR CATV AMPLIFIERS
J1 RF IN
R1 56
R2 56
R3 56
3
75 strip
L1 1000 n H C2 1 nF
75 strip
J2 RF OUT
2317401 Rev -
3-18
Rev A16 010816
RF2317
Evaluation Board Layout - 50 2.0" x 2.0"
Board Thickness 0.031", Board Material FR-4
3
LINEAR CATV AMPLIFIERS
Evaluation Board Layout - 75 1.40" x 1.40"
Board Thickness 0.062", Board Material FR-4
Rev A16 010816
3-19
RF2317
75 Ohms, ICC = 150 mA, Temp = 25C
1.0
75 Ohms, ICC = 180 mA, Temp = 25C
1.0
6 0.
2. 0
6 0.
Swp Max 2GHz
Swp Max 2GHz
2. 0
0.8
0 3.
0.8
0. 4
10.0
LINEAR CATV AMPLIFIERS
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
3
0
10.0
0
.4 -0
.4 -0
.0 -2
-0 .6
-0.8
-0 .6
Swp Min 0.005GHz
-0.8
.0 -2
Swp Min 0.005GHz
-1.0
Collector Voltage versus Current
10.0 Vcc 9.0 15.2 15.4
Gain versus Frequency
-1.0
-40 degrees C +26 degrees C +85 degrees C 15.0
Collector Voltage (Volts)
8.0
Gain (dB)
14.8
7.0
14.6
6.0 14.4
5.0
14.2
4.0 0.0 50.0 100.0 150.0 200.0 250.0
14.0 100.0
200.0
300.0
400.0
Collector Current (mA)
Frequency (MHz)
3-20
Rev A16 010816
-4 .0 -5. 0
-3 .0
-4 .0 -5. 0
2 -0.
S[2,2]
S[1,1]
2 -0.
S[2,2]
S[1,1]
500.0
-10.0
0.2
-10.0
-3 .0
0. 4
0 3.
0 4.
0 4.
5.0
5.0
0.2
10.0

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