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| 3V, 450 MHz SILICON MMIC FREQUENCY CONVERTER FEATURES * LOW POWER DISSIPATION VCC = 3 V, Icc = 7 mA UPC2768GR INTERNAL BLOCK DIAGRAM * HIGH CONVERSION GAIN 80 dB GND GND RF INPUT RF BYPASS MIXER IF OUT IF BYPASS 1 2 3 4 5 6 7 8 9 10 P/ S 20 GND 19 GND 18 LO1/VCO1 17 LO2/VCO2 16 15 14 13 12 VENABLE VCC (D/C) VCC (IF) IF OUPUT N/C * ON CHIP OSCILLATOR OR LO BUFFER: DC - 450 MHz * OUTPUT LIMITING 450 mVp-p * BROADBAND OPERATION DC - 450 MHz * POWER SAVE FUNCTION ICC (ps) = <100 A DESCRIPTION The UPC2768GR is a frequency converter manufactured with the NESAT III process. This product consists of an RF input amplifier, Gilbert cell mixer, Local Oscillator or LO buffer, IF amplifier, external filter port, and IF output limiting amplifier. The on-chip local oscillator only requires an external tank circuit. The power save feature enables users to minimize overall current consumption when dormant. This device was specifically designed for low-cost second IF receivers, keyless entry applications, security systems, GPS, and other low power Part 15 mobile radios. IF INPUT BYPASS N/C GND 11 GND ELECTRICAL CHARACTERISTICS (VCC = 3.0 V, TA = 25C, ZL = ZS = 50 , VENABLE 2.5 V unless otherwise specified) PART NUMBER PACKAGE OUTLINE SYMBOLS ICC Down Converter fRF,fLO CG NF Leak LO-RF Leak LO-IF GS VOUT PSAT PARAMETERS AND CONDITIONS Circuit Current (VENABLE 2.5 V)4 (VENABLE 0.5 V) RF and LO Input Frequency Range (3 dB BW)1, fIF = 10 MHz Conversion Gain2, fRF = 433 MHz, fIF = 25 MHz Noise Figure2, fRF = 450 MHz, fIF = 10 MHz LO to RF Leakage3, fLO = 1 to 450 MHz LO to IF Leakage3, fLO = 1 to 450 MHz IF Amplifier Small Signal Gain fIF = 10.7 MHz fIF = 25.0 MHz Limiting Output Voltage, ZL = 2K, fIF = 10 MHz Saturated Output Power UNITS mA A MHz dB dB dBm dBm dB dB mVp-p dBm 40 38 DC 33 36 12 -62 -25 44 42 450 -20 47 45 MIN UPC2768GR S20 (SSOP 20) TYP 7 100 450 40 MAX IF Amplifier Notes: 1. Max freq. range is -3 dB from conversion gain for RF = 50 MHz 2. Down converter only (RFIN to mixer IFOUT). 3. PLO = -10 dBm external, or using internal LO. 4. Down converter and IF amp may be operated separately. Typical ICC for down converter is 5.5 mA (pin 15). Typical ICC for IF amp is 1.4 mA (pin 14). California Eastern Laboratories UPC2768GR ABSOLUTE MAXIMUM RATINGS1 (TA = 25C) SYMBOLS VCC PT TOP TSTG PARAMETERS Supply Voltage Power Dissipation2 Operating Temperature Storage Temperature UNITS V mW C C RATINGS 5 433 -40 to +85 -55 to +150 RECOMMENDED OPERATING CONDITIONS SYMBOLS VCC TOP fIF PARAMETERS Supply Voltage Operating Temperature IF Frequency Range UNITS MIN V C MHz 2.7 -40 DC TYP MAX 3.0 25 3.3 85 25 Note: 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). TYPICAL PERFORMANCE CURVES (TA = 25C, VCC = 3.0 V, VENABLE 2.5 V unless otherwise specified) CIRCUIT CURRENT vs. SUPPLY VOLTAGE AND ENABLE VOLTAGE (TA = 85C) VCC = 4.0 V CIRCUIT CURRENT vs. SUPPPLY VOLTAGE AND ENABLE VOLTAGE VCC = 4.0 Circuit Current, ICC (mA) Circuit Current, ICC (mA) 10.0 VCC = 3.3 VCC = 3.0 VCC = 2.7 5.0 10.0 VCC= 3.3 V VCC = 3.0 V VCC = 2.7 V 5.0 0 0 1.0 2.0 3.0 4.0 0 0 1.0 2.0 3.0 4.0 Enable Voltage (V) Enable Voltage (V) CIRCUIT CURRENT vs. SUPPLY VOLTAGE AND ENABLE VOLTAGE (TA = 40C) 10.0 CONVERSION GAIN vs. RF FREQUENCY AND TEMPERATURE (DOWN CONVERTER ONLY) 40 TA = 25C TA = -40C TA = 85C Circuit Current, ICC (mA) VCC = 4.0 VCC = 3.3 5.0 VCC = 3.0 VCC = 2.7 Conversion Gain (dB) 30 PRF = -70 dBm PLO = -10 dBm fIF = 10 MHz 20 0 0 0 1.0 2.0 3.0 4.0 0 100 200 300 400 500 600 Enable Voltage (V) RF Frequency (MHz) UPC2768GR TYPICAL PERFORMANCE CURVES (TA = 25C, VCC = 3.0 V, VENABLE 2.5 V unless otherwise specified) CONVERSION GAIN VS. IF FREQUENCY (DOWNCONVERTER ONLY) 40 TA = 25C TA = -40C TA = 85C 500 OUTPUT VOLTAGE vs. INPUT POWER Conversion Gain (dB) Output Voltage (mV) 400 30 fLO = fRF -fIF PRF = -70 dBm PLO = -10 dBm fRF = 450 MHz 300 200 fIN = 10 MHz ZL = 2K 100 20 0 10 20 30 40 50 60 -70 -60 -50 -40 -30 -20 -10 IF Frequency (MHz) Input Power (dBm) LO LEAKAGE vs. FREQUENCY RF INPUT MATCH (S11) 1 .5 2 0 PLO = -10 dBm Output Power (dBm) -20 Lo-IF Leakage -40 Lo-RF Leakage -60 .2 5 .2 .5 1 2 -.2 -5 -.5 -2 -1 422.815 423.315 423.815 LO Frequency (MHz) Marker: 315.5 MHz x = .53 y = -.67 Start 50 MHz R = 20.1 X = -100.6 LS = -50.7 nH CS = 5.0 pF Stop 500 MHz TYPICAL DETECTOR CIRCUIT 3V GND 82K 43K 1F MM33172D DUAL OPAMP 43K DATA_OUT IN MMBD101 43K 82K 20K GND 1500p GND GND GND 820K 2.2M 1F GND UPC2768GR APPLICATION CIRCUIT 1 2 3 4 68 pF 3.3 H 20 19 18 17 Bias 16 15 14 13 12 11 10.7 MHz To Detector 33 25 pF 2 SAW* 1 3 5 6 7 8 9 10 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. GND GND RF Input RF Bypass Mixer IF IF Bypass IF Input Bypass N/C GND 20. 19. 18. 17. 16. 15. 14. 13. 12. 11. GND GND Lo1/VCO1 Lo2/VCO2 VENABLE VCC (D/C) VCC (IF) IF OUTPUT N/C GND * Recommended devices: RF Monolithics RO2125A for 304 MHz RF Monolithics RO2102A for 423 MHz or equivalent All unmarked caps are 1000 pF OUTLINE DIMENSIONS (Units in mm) PACKAGE OUTLINE SSOP 20 20 11 TYPICAL INPUT MATCHING CIRCUIT 3 pole high-pass network provides greater than 20 dB rejection in the FM band (<100 MHz) and a VSWR of 1.5:1 at 315 MHz. 5.6pF RF 200 4 82pF 3 NEC C2768G N XXXXX XXXX = Lot/Date Code 27nH 36pF 1 7.00 MAX 10 6.40.2 4.40.1 1.00.1 1.5 0.1 1.8 MAX 0.1 0.1 +0.10 0.22 - 0.05 +0.10 0.15- 0.05 0.50.2 0.65 0.575 MAX ORDERING INFORMATION PART NUMBER QUANTITY 2500/Reel UPC2768GR-E1 Lead Material: Alloy 42 Lead Plating: Lead Tin Alloy LEAD CONNECTIONS: 1. GND 11. GND 2. GND 12. N/C 3. RF INPUT 13. IF OUTPUT 4. RF BYPASS 14. VCC (IF) 5. MIXER IF 15. VCC (D/C) 6. IF BYPASS 16. V ENABLE 7. IF INPUT 17. LO2/VCO2 8. BYPASS 18. LO1/VCO1 9. N/C 19. GND 10. GND 20. GND 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 PRINTED IN USA ON RECYCLED PAPER DATA SUBJECT TO CHANGE WITHOUT NOTICE |
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