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| WIDEBAND IQ DEMODULATOR FOR DIGITAL RECEIVERS FEATURES * BROADBAND OPERATION RF & LO DC to 1 GHz IF (IQ) DC to 100 MHz * WIDEBAND IQ PHASE AND AMPLITUDE MATCHING Amplitude Matching: 0.3 dB Typical Phase Matching: 0.3 (driven in phase) * AGC DYNAMIC RANGE: 30 dB Typical * LOW DISTORTION: 30 dBc Typical * SMALL SSOP 20 PACKAGE * TAPE AND REEL PACKAGING AVAILABLE RFin GND(RF) VAGC VCC (IFQ) UPC2766GR FUNCTIONAL BLOCK DIAGRAM I BiasTrim VCC (IFI) VCC (RF) GND (RF) RFin 1 2 3 4 5 6 7 8 9 20 I out 19 18 17 16 15 14 13 12 11 I out GND (IFI ) LO (I) LO (I) LO (Q) LO (Q) GND(IFQ) Qout Qout DESCRIPTION The UPC2766GR Silicon MMIC Wideband IQ Demodulator was manufactured with the NESAT III MMIC process. The NESAT III process produces transistors with fT approaching 20 GHz. The device was designed specifically for digital video and data receivers. The IC consists of a wide band RF amplifier, Gain Control amplifier, dual balanced mixers, LO buffers, and I & Q output buffer amplifiers. NEC's stringent quality assurance and test procedures ensure the highest reliability and performance. Q Bias Trim 10 ELECTRICAL CHARACTERISTICS1 (TA = 25C, VCC = 5 V, ZL = 50 ) PART NUMBER PACKAGE OUTLINE SYMBOLS ICC fRF fIF CG NF IM3 G GAGC LO-RF LO-IF PSAT VO PARAMETERS AND CONDITIONS Circuit Current (no signal) RF Input Bandwidth2 fIF = 40 MHz, fRF > fLO, 3 dB down IF Output Bandwidth3 fRF = 480 MHz, fRF> fLO, 3 dB down, VAGC = 0 V Conversion Gain Noise Figure UNITS mA MHz MHz dB dB 15 DC-750 MIN UPC2766GR S20 (SSOP 20) TYP 60 DC-1000 200 20 21 30 0.3 0.3 40 45 55 10 +2 1.2 1.5 1.5 0.5 25 MAX 78 3rd Order Intermodulation Distortion fRF1 = 480 MHz, fRF2 = 490 MHz, fLO = 440 MHz, PIN = -20 dBm, VAGC = 1 V dBc IQ Phase Balance (LO driven in phase) IQ Amplitude Balance AGC Range, VAGC = 0-5 V LO to RF Isolation LO to IF Isolation Saturated Output Level Saturated Output Voltage (ZL = 250 //2pF) deg dB dB dB dB dBm VP-P Notes: 1. fRF = 480 MHz, fIF = 40 MHz, PLO = -10 dBm, PRF = -30 dBm, VAGC = 0 V, fRF > fLO unless otherwise specified. 2. RF Bandwidth defined as 3 dB down from response at fRF = 40 MHz. 3. IF Bandwidth defined as 3 dB down from response at fIF = 10 MHz. UPC2766GR ABSOLUTE MAXIMUM RATINGS1 (TA = 25C) SYMBOLS VCC PD TOP TSTG PARAMETERS Supply Voltage Power Dissipation2 Operating Temperature Range Storage Temperature UNITS V mW C C RATINGS 6 430 -40 to +85 -55 to +150 RECOMMENDED OPERATING CONDITIONS SYMBOLS VCC TOP PARAMETERS Supply Voltage Operating Temperature UNITS MIN V C 4.5 -40 TYP MAX 5.0 +25 5.5 +85 Notes: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. Mounted on a 50x50x1.6 mm epoxy glass PWB (TA = 85C). PIN FUNCTIONS Pin No. 1 Pin Name I Trim Pin Voltage Typ. (V) 4.2 Function and Explanation Limiter control for I-IF output 1 Equivalent Circuit 2 3 4 VCC (IFI) VCC (RF) GND (RF) 5.0 5.0 0.0 Power supply pin of I-Mixer. Power supply pin of RF and AGC block. Ground pin of RF and AGC block. 5 RFIN 2.6 RF input pin. For single-ended applications, Pin 6 should be bypassed to GND via a capacitor. 5 To next block 6 RFIN 2.6 6 7 8 GND (RF) VAGC 0.0 0~5 Ground pin of RF and AGC block. Gain control pin. * VAGC = 0 V: Maximum Gain * VAGC = 5 V: Maximum Attenuation VCC 8 9 VCC (IFQ) 5.0 Power supply pin of Q-Mixer VCC 10 Q Trim 4.2 Limiter control for Q-IF output. 10 UPC2766GR PIN FUNCTIONS Pin No. 11 Pin Name Qout Pin Voltage Typ. (V) 3.3 Function and Explanation Q-IF output pin. Output impedance is approximately 55 . Output load should be approximately 250 . Pin 11 and pin 12 are differential outputs. For single-ended applications, terminate unused output with equivalent impedance. Equivalent Circuit 12 Qout 3.3 12 11 From block before + _ 13 14 GND (IFQ) LO (Q) 0.0 2.2 Ground pin of Q-IF block. Oscillator input of Q-Mixer. For single-ended applications, pin 15 should be bypassed to GND via a capacitor. 15 LO (Q) 2.2 14 15 16 LO (I) 2.2 Oscillator input of I-Mixer. For single-ended applications, pin 16 should be bypassed to GND via a capacitor. 17 LO (I) 2.2 17 16 18 GND (IF I) 0.0 Ground pin of I-IF block. I-IF output pin. Output impedance is approximately 55 . Output load should be approximately 250 . Pin 19 and pin 20 are differential outputs. For single-ended applications, terminate unused output with equivalent impedance. 19 IOUT 3.3 19 20 From block before 20 Iout 3.3 + _ UPC2766GR TYPICAL PERFORMANCE CURVES (TA = 25C unless otherwise specified) CONVERSION GAIN vs. RF FREQUENCY AND TEMPERATURE 30 30 CONVERSION GAIN vs. IF FREQUENCY AND TEMPERATURE Conversion Gain, CG (dB) +25C Conversion Gain, CG (dB) 25 25 -40C 20 +25C +85C 15 20 -40C +85C 15 10 fIF = 40 MHz VAGC = 0 V 5 10 fRF = 480 MHz VAGC = 0 V 5 0 10 100 1000 0 30 50 100 300 RF Frequency (MHz) IF Frequency (MHz) OUTPUT POWER vs. INPUT POWER 5 0 OUTPUT POWER AND IM3 vs. INPUT POWER Output Power, POUT (dBm) 0 Output Power and IM3 (dBm) -10 -5 -20 POUT -10 -30 IM3 -40 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz VAGC = 1 V -15 -20 fRF = 480 MHz fIF = 40 MHz VAGC = 0 V -50 -25 -40 -30 -20 -10 0 10 -60 -40 -30 -20 -10 0 10 Input Power, PIN (dBm) RF Input Power (dBm) UPC2766GR TYPICAL PERFORMANCE CURVES (TA = 25C, fIF = 40 MHz, IQ PHASE BALANCE vs. RF FREQUENCY AND TEMPERATURE 5 unless otherwise specified.) IQ AMPLITUDE BALANCE vs. RF FREQUENCY 2 3 2 1 0 -1 -2 -3 -4 -5 10 100 1000 +25C +85C -40C IQ Amplitude Balance, G (dB) 4 IQ Phase Balance, () 1 0 -1 -2 10 100 1000 RF Frequency (MHz) RF Frequency (MHz) LO LEAKAGE TO RF PORT vs. LO FREQUENCY AND TEMPERATURE -20 PLO = -10 dBm 0 10 LO LEAKAGE TO IF PORT vs. LO FREQUENCY AND TEMPERATURE PLO = -10 dBm -30 LO Leakage (dBc) -40 TA = +25C LO Leakage (dBc) -10 TA = -40C -20 TA = +25C TA = -40C -50 TA = +85C -60 TA = +85C -30 -70 0 500 1000 -40 0 500 1000 LO Frequency (MHz) LO Frequency (MHz) Third Order Intermodulation Distortion, IM3 (dBc) THIRD ORDER INTERMODULATION vs. CONVERSION GAIN THIRD ORDER INTERMODULATION vs. AGC VOLTAGE Third Order Intermodulation Distortion, IM3 (dBc) 0 0 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz PIN = -20 dBm each -10 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz PIN = -20 dBm each PLO = -10 dBm -10 -20 -20 -30 -30 -40 -40 -50 -30 -20 -10 0 10 20 -50 0 1 2 3 4 5 Conversion Gain, CG (dB) AGC Voltage, VAGC (V) UPC2766GR TYPICAL PERFORMANCE CURVES CONVERSION GAIN vs. AGC VOLTAGE 30 (TA = 25C) Conversion Gain, CG (dB) 20 fRF = 480 MHz fIF = 40 MHz PRF = -30 dBm PLO = -10 dBm 10 0 -10 -20 -30 0 1 2 3 4 5 AGC Voltage, VAGC (V) TEST CIRCUIT 300 nH 250 I out 1 20 8 pF 250 I-MIX. I-IF Amp. 19 2 3 I-LO Buffer Amp. RF Pre- RF Amp. AGC 18 4 17 RF IN 5 6 16 OSC IN 15 Q-LO 14 Buffer Amp. AGC Cont. In Phase Power Divider 7 VAGC 8 13 Q-IF Amp. VCC 9 Q-MIX. 12 250 300 nH 10 11 250 Q out 8 pF Notes: 1. All capacitors are 1000 pF unless odtherwise noted. 2. Low Pass Filter on I and QOUT minimizes LO Leakage. UPC2766GR APPLICATION CIRCUIT 1 I-MIX. 20 I OUT R1 I out 2 I-IF Amp. 19 3 4 50K (Optional) RF Pre- RF Amp. AGC I-LO Buffer Amp. 18 C1 LO Input VCC 17 0.01 f C2 R RF IN 5 6 16 0.01 f 15 R C2 Q-LO Buffer Amp. AGC Cont. 7 14 C1 VAGC 8 13 Q OUT R1 VCC 9 Q-MIX. Q-IF Amp. 12 10 11 Q out OUTLINE DIMENSIONS (Units in mm) PACKAGE OUTLINE SSOP 20 20 11 Notes: 1. All capacitors are 1000 pF unless otherwise noted. 2. Phase shifter element values XC1 << R @ fLO XC2 = R @ fLO 3. Set R1 of IOUT and QOUT ports to match the load of IOUT and QOUT ports NEC C2766G N RECOMMENDED PCB LAYOUT (Units in mm) 1.27 XXXX = Lot/Date Code XXXXX 7.00 MAX 10 6.40.2 4.40.1 1.00.1 1 1.5 0.1 1.8 MAX 0.1 0.1 +0.10 0.22 - 0.05 +0.10 0.15- 0.05 7.17 4.63 0.50.2 0.65 0.575 MAX Lead Material: Alloy 42 Lead Plating: Lead Tin Alloy LEAD CONNECTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. I BIAS TRIM VCC (IFI) VCC (RF) GND (RF) RF IN RF IN GND (RF) VAGC VCC (IFQ) Q BIAS TRIM 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Q OUT Q OUT GND (IFQ) LOQ LOQ LOI LOI GND (IFI) I OUT I OUT 0.35 0.65 ORDERING INFORMATION PART NUMBER UPC2766GR-E1 Note: Embossed Tape, 12 mm wide. QUANTITY 2500/Reel EXCLUSIVE NORTH AMERICAN AGENT FOR RF, MICROWAVE & OPTOELECTRONIC SEMICONDUCTORS CALIFORNIA EASTERN LABORATORIES * Headquarters * 4590 Patrick Henry Drive * Santa Clara, CA 95054-1817 * (408) 988-3500 * Telex 34-6393 * FAX (408) 988-0279 24-Hour Fax-On-Demand: 800-390-3232 (U.S. and Canada only) * Internet: http://WWW.CEL.COM 11/14/2000 DATA SUBJECT TO CHANGE WITHOUT NOTICE |
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