WIDEBAND IQ DEMODULATOR FOR DIGITAL RECEIVERS UPC2766GR FUNCTIONAL BLOCK DIAGRAM 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 I BiasTrim 1 20 I out VCC (IFI) 2 19 I out VCC (RF) 3 18 GND (IFI ) GND (RF) 4 17 LO (I) RFin 5 16 LO (I) RFin 6 15 LO (Q) GND(RF) 7 14 LO (Q) VAGC 8 13 GND(IFQ) VCC (IFQ) 9 12 Qout Q Bias Trim 10 11 Qout • SMALL SSOP 20 PACKAGE • TAPE AND REEL PACKAGING AVAILABLE 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. ELECTRICAL CHARACTERISTICS1 (TA = 25°C, VCC = 5 V, ZL = 50 Ω) PART NUMBER PACKAGE OUTLINE SYMBOLS PARAMETERS AND CONDITIONS UPC2766GR S20 (SSOP 20) UNITS MIN TYP MAX 60 78 ICC Circuit Current (no signal) mA fRF RF Input Bandwidth2 fIF = 40 MHz, fRF > fLO, 3 dB down MHz fIF IF Output Bandwidth3 fRF = 480 MHz, fRF> fLO, 3 dB down, VAGC = 0 V MHz CG Conversion Gain dB NF Noise Figure dB 21 IM3 3rd Order Intermodulation Distortion fRF1 = 480 MHz, fRF2 = 490 MHz, fLO = 440 MHz, PIN = -20 dBm, VAGC = 1 V dBc 30 DC-750 DC-1000 200 15 20 25 ∆Φ IQ Phase Balance (LO driven in phase) deg ±0.3 ±1.5 ∆G IQ Amplitude Balance dB ±0.3 ±0.5 AGC Range, VAGC = 0-5 V dB LO-RF LO to RF Isolation dB LO-IF LO to IF Isolation dB 10 PSAT Saturated Output Level dBm +2 Saturated Output Voltage (ZL = 250 Ω//2pF) VP-P GAGC VO 40 45 55 1.2 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. 1.5 UPC2766GR ABSOLUTE MAXIMUM RATINGS1 (TA = 25°C) SYMBOLS PARAMETERS UNITS RATINGS V 6 SYMBOLS mW 430 VCC Supply Voltage V 4.5 5.0 5.5 TOP Operating Temperature °C -40 +25 +85 VCC Supply Voltage PD Power Dissipation2 TOP Operating Temperature Range °C -40 to +85 Storage Temperature °C -55 to +150 TSTG RECOMMENDED OPERATING CONDITIONS PARAMETERS UNITS MIN TYP MAX 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 = 85°C). PIN FUNCTIONS Pin No. Pin Name Pin Voltage Typ. (V) 1 I Trim 4.2 Function and Explanation Equivalent Circuit Limiter control for I-IF output 1 2 VCC (IFI) 5.0 Power supply pin of I-Mixer. 3 VCC (RF) 5.0 Power supply pin of RF and AGC block. 4 GND (RF) 0.0 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. 6 RFIN 2.6 To next block 5 7 GND (RF) 0.0 Ground pin of RF and AGC block. 8 VAGC 0~5 Gain control pin. • VAGC = 0 V: Maximum Gain • VAGC = 5 V: Maximum Attenuation 9 VCC (IFQ) 5.0 6 VCC 8 Power supply pin of Q-Mixer VCC 10 Q Trim 4.2 Limiter control for Q-IF output. 10 UPC2766GR PIN FUNCTIONS Pin No. Pin Name Pin Voltage Typ. (V) 11 Qout 3.3 12 Qout 3.3 Function and Explanation Q-IF output pin. Output impedance is approximately 55 Ω. Output load should be approximately 250 Ω. Pin 11 and pin 12 are differential outputs. For single-ended applications, terminate unused output with equivalent impedance. Equivalent Circuit 11 12 From block before _ + 13 GND (IFQ) 0.0 Ground pin of Q-IF block. 14 LO (Q) 2.2 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 16 LO (I) 2.2 17 LO (I) 2.2 Oscillator input of I-Mixer. For single-ended applications, pin 16 should be bypassed to GND via a capacitor. 17 18 GND (IF I) 0.0 Ground pin of I-IF block. 19 IOUT 3.3 I-IF output pin. Output impedance is approximately 55 Ω. Output load should be approximately 250 Ω. Pin 19 and pin 20 are differential outputs. For single-ended applications, terminate unused output with equivalent impedance. 20 Iout 3.3 15 19 16 20 From block before + _ UPC2766GR TYPICAL PERFORMANCE CURVES (TA = 25°C unless otherwise specified) CONVERSION GAIN vs. RF FREQUENCY AND TEMPERATURE CONVERSION GAIN vs. IF FREQUENCY AND TEMPERATURE 30 25 Conversion Gain, CG (dB) Conversion Gain, CG (dB) 30 +25˚C 20 -40˚C +85˚C 15 10 fIF = 40 MHz VAGC = 0 V 5 0 100 10 25 -40˚C +25˚C 20 +85˚C 15 fRF = 480 MHz VAGC = 0 V 10 5 0 1000 30 50 300 100 RF Frequency (MHz) IF Frequency (MHz) OUTPUT POWER vs. INPUT POWER OUTPUT POWER AND IM3 vs. INPUT POWER 5 Output Power and IM3 (dBm) Output Power, POUT (dBm) 0 0 -5 -10 -15 fRF = 480 MHz fIF = 40 MHz VAGC = 0 V -20 -10 -20 POUT -30 IM3 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz VAGC = 1 V -40 -50 -60 -25 -40 -30 -20 -10 Input Power, PIN (dBm) 0 10 -40 -30 -20 -10 RF Input Power (dBm) 0 10 UPC2766GR TYPICAL PERFORMANCE CURVES (TA = 25°C, fIF = 40 MHz, unless otherwise specified.) IQ PHASE BALANCE vs. RF FREQUENCY AND TEMPERATURE IQ AMPLITUDE BALANCE vs. RF FREQUENCY 2 5 IQ Amplitude Balance, ∆G (dB) IQ Phase Balance, ∆Φ (°) 4 3 2 1 -40˚C 0 -1 +25˚C +85˚C -2 -3 1 0 -1 -4 -2 -5 100 10 10 1000 1000 100 RF Frequency (MHz) RF Frequency (MHz) LO LEAKAGE TO RF PORT vs. LO FREQUENCY AND TEMPERATURE LO LEAKAGE TO IF PORT vs. LO FREQUENCY AND TEMPERATURE -20 10 PLO = -10 dBm PLO = -10 dBm 0 TA = +25˚C -40 TA = -40˚C -50 TA = +85˚C LO Leakage (dBc) LO Leakage (dBc) -30 TA = +25˚C TA = -40˚C -20 TA = +85˚C -30 -60 -40 -70 0 500 0 1000 1000 500 LO Frequency (MHz) LO Frequency (MHz) THIRD ORDER INTERMODULATION vs. CONVERSION GAIN THIRD ORDER INTERMODULATION vs. AGC VOLTAGE 0 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz PIN = -20 dBm each PLO = -10 dBm -10 -20 -30 -40 -50 -30 -20 -10 0 10 Conversion Gain, CG (dB) 20 Third Order Intermodulation Distortion, IM3 (dBc) Third Order Intermodulation Distortion, IM3 (dBc) -10 0 fRF1 = 480 MHz fRF2 = 490 MHz fLO = 440 MHz PIN = -20 dBm each -10 -20 -30 -40 -50 0 1 2 3 AGC Voltage, VAGC (V) 4 5 UPC2766GR TYPICAL PERFORMANCE CURVES (TA = 25°C) CONVERSION GAIN vs. AGC VOLTAGE Conversion Gain, CG (dB) 30 fRF = 480 MHz fIF = 40 MHz PRF = -30 dBm PLO = -10 dBm 20 10 0 -10 -20 -30 0 1 2 3 4 5 AGC Voltage, VAGC (V) TEST CIRCUIT 300 nH 1 250Ω I out 20 8 pF 250Ω 2 I-MIX. I-IF Amp. 19 3 18 I-LO Buffer Amp. 4 RF IN 5 RF Pre- RF Amp. AGC 17 16 OSC IN 6 15 7 Q-LO 14 Buffer Amp. In Phase Power Divider AGC Cont. VAGC 8 VCC 9 10 13 Q-IF Amp. Q-MIX. 12 250Ω 300 nH 11 250Ω 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 out 20 I-MIX. I OUT 2 3 18 50K (Optional) 5 RF IN C1 I-LO Buffer Amp. 4 VCC R1 19 I-IF Amp. LO Input 17 0.01 µf RF Pre- RF Amp. AGC C2 R 16 0.01 µf 6 15 C2 R Q-LO Buffer Amp. 7 14 AGC Cont. VAGC 8 VCC 9 C1 13 Q OUT Q-IF Amp. Q-MIX. 10 11 Q out 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 OUTLINE DIMENSIONS (Units in mm) PACKAGE OUTLINE SSOP 20 20 R1 12 11 RECOMMENDED PCB LAYOUT (Units in mm) NEC C2766G N 1.27 XXXXX XXXX = Lot/Date Code 1 7.00 MAX 10 6.4±0.2 4.4±0.1 1.0±0.1 1.5 ±0.1 7.17 +0.10 0.15- 0.05 1.8 MAX 0.1 ±0.1 4.63 0.5±0.2 0.65 0.575 MAX +0.10 0.22 - 0.05 Lead Material: Alloy 42 Lead Plating: Lead Tin Alloy 0.65 0.35 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 EXCLUSIVE NORTH AMERICAN AGENT FOR ORDERING INFORMATION PART NUMBER QUANTITY UPC2766GR-E1 2500/Reel Note: Embossed Tape, 12 mm wide. 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