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| 900 MHz SILICON UPC1687GV RFIC DOWN CONVERTER FEATURES * WIDE-BAND OPERATION: DC to 900 MHz * SMALL PACKAGE * DOUBLE BALANCED MIXER: Low Distortion Low Oscillator Radiation * BALANCED AMPLIFIER FOR VOLTAGE CONTROLLED OSCILLATORS: Up to UHF Frequency * SINGLE ENDED PUSH-PULL IF AMPLIFIER: Constant Resistive Impedance * SWITCHABLE AS MIXER OR IF AMP OSC OSC Buffer MIX 8 7 6 IF Main Amp. IF Pre Amp. 5 BLOCK DIAGRAM REG. DESCRIPTION The UPC1687GV is a silicon RFIC designed as a wide-band mixer/oscillator/IF amp suitable for UHF TV tuners. Device features include: 25 dB gain from 55 to 900 MHz and an output power of +10 dBm at the saturation point. The IC is housed in an 8 pin SSOP package. 1 2 3 4 ELECTRICAL CHARACTERISTICS (TA = 25C, VCC = 5 V) PART NUMBER PACKAGE OUTLINE SYMBOLS ICC CG PARAMETERS AND CONDITIONS Circuit Current, no input signal Conversion Gain (RF Input Terminal is not tuned) at IF = 50 MHz, PRF = -40 dBm, POSC = -5 dBm RF = 500 MHz RF = 900 MHz Noise Figure at IF = 50 MHz, POSC = -5 dBm RF = 500 MHz RF = 900 MHz 1% Cross Modulation Distortion1 RF = 500 MHz RF = 900 MHz Output Power (Saturation Point) Oscillator Frequency Stability at VCC 10% OSC f = 550 to 950 MHz VCC at OSC Start OSC f = 550 to 950 MHz IF Output UNITS mA MIN 25 UPC1687GV S08 TYP 38 MAX 48 TEST CIRCUIT Fig. 1 dB dB dB dB dB dB dBm kHz V 22 20 -- -- -- -- -- -- -- -- 26 24 9 10 88 89 +10 200 3.0 -- 29 27 12 13 -- -- -- -- -- 1.5 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 2 Fig. 2 Fig. 1 NF CM PSAT fSTB VOSC VSWR Note: 1. Undesired = Desired 12 MHz, 100 kHz, 30% AM Mod, S/I Ratio = 46 dBc. California Eastern Laboratories UPC1687GV ABSOLUTE MAXIMUM RATINGS1 (TA = 25C) SYMBOLS VCC PT TOP TSTG PARAMETERS Supply Voltage Total Power Dissipation2 UNITS V mW C C RATINGS 6 250 -40 to +85 -65 to +150 Operating Temperature Storage Temperature Notes: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. TA = 85C mounted on 50 x 50 x 1.6 (mm) PWB (glass-epoxy). ELECTRICAL CHARACTERISTICS (TA = 25C) PART NUMBER PACKAGE OUTLINE SYMBOLS Gs NF CM PARAMETERS AND CONDITIONS Small Signal Gain of IF amplifier at f = 50 MHz Noise Figure of IF amplifier at f = 50 MHz 1% Cross Modulation of IF amplifier (100 kHz, 30% AM Mod, S/I Ratio = 46 dBc) Desired = 50 MHz Undesired = 62 MHz UNITS dB dB dB UPC1687GV S08 TYP 29 7 87 TEST CIRCUIT Fig. 3 Fig. 3 Fig. 3 TYPICAL PERFORMANCE CURVES (TA = 25C) CONVERSION GAIN AND NOISE FIGURE vs. FREQUENCY (RF Input Not Tuned) 16 CG CONVERSION GAIN vs. FREQUENCY (RF Input Tuned) Conversion Gain, CG (dB) 25 14 30 Conversion Gain, CG (dB) Noise Figure, NF (dB) 25 20 12 20 15 15 NF 10 10 8 10 5 Vcc = 5 V, PRF = -40 dBm, fIF = 50 MHz 55 200 500 900 5 Conditions; Vcc = 5 V, PRF = -40 dBm IF = 50 MHz 0 500 1000 1200 6 RF Input Frequency, fRF (MHz) RF Input Frequency, fRF (MHz) 1% CROSS MODULATION vs. FREQUENCY 100 OSC-FREQUENCY STABILITY vs. FREQUENCY +300 VCC = 5 V 1% Cross Modulation, CM (dB) 90 OSC Stability, f (kHz) 80 -10% 0 70 60 Conditions; Vcc = 5 V IF = 50 MHz Undesired Signal; Desired Signal 12 MHz 100 kHz 30% AM Mod S/I Ratio = 46 dBc Measured 75 ohm open terminal +10% -300 0 500 1000 1200 0 500 1000 1200 Frequency (RF Input), f (MHz) Frequency (OSC), f (MHz) UPC1687GV TYPICAL PERFORMANCE CURVES (TA = 25C) CIRCUIT CURRENT vs. SUPPLY VOLTAGE OUTPUT POWER AND INTERMODULATION DISTORTION vs. INPUT POWER Output Power (IF), POUT (dBm) 50 +20 Circuit Current, ICC (mA) 40 POUT 0 IM 3 30 20 -20 VCC = 5 V RF = 500 MHz IF = 50 MHz -40 10 0 1 2 3 4 5 6 -40 -20 0 +20 Supply Voltage, VCC (V) Input Power (RF), PIN (dBm) Each Tone PIN DESCRIPTION Pin No. 1 Pin Name OSC Base (bypass) OSC Base (feedback) OSC Collector (Coupling) VCC Supply voltage pin. This pin should be externally equipped with a bypass capacitor to minimize ground impedance. VCC Description Input pins for the internal oscillator which consists of a balanced amplifier. Pin 1 should be bypassed to ground through a capacitor. Pins 2 and 3 should be externally equipped with a tank resonator. Note that pin 3 is an open collector and must be supplied voltage through an external resistor or choke coil. VCC Internal Equivalent Circuit 3 12 2 to OSC Buffer Amp VREF 3 4 5 IF Output IF output pin from the single-ended push-pull amplifier. This pin is an emitter follower output with a constant resistive impedance of 50 . from IF Pre amp 5 IF Output 6 GND Ground pin. This pin must be connected to system ground. Form ground pattern as wide as possible to minimize ground impedance. VCC 7 RF Input 1 (bypass) RF Input 2 8 RF input pins. Pins 7 and 8 are each base inputs to a double balanced mixer. Either pin can be assigned as the input. The unused pin should be bypassed to ground through a capacitor. to IF Amp from OSC Buffer RF Inputs UPC1687GV TEST CIRCUITS Figure 1 47 VCC 1000 pF 150 nH 5 pF 1000 pF 4 5 3 6 4 pF 2 7 1 8 OSC Input 1000 pF IF Output RF Input 1000 pF 1000 pF Figure 2 47 K ZO = 200 ohms 47 150 H VCC 1000 pF 4 5 1000 pF IF Output 3 6 4 pF 330 pF 1000 pF 2 7 4 pF 4 pF 10 pF 5 pF 1 8 RF Input 1SV164 = 20 mm 0.5 pF BT (0. to 29V) Figure 3 VCC 5 pF 1000 pF 4 5 1000 pF 3 6 4 pF IF Input 1000 pF 1000 pF 2 7 1 8 IF Output UPC1687GV APPLICATION BLOCK DIAGRAM FOR T.V. TUNER U-OSC RES. RF Amp B.P.F. UHF RF Input B.P.F. UPC1687 U-MIX U-OSC IF AMP V-OSC RES. RF Amp B.P.F. VHF RF Input IF AMP B.P.F. V-MIX V-OSC UPC1686 IF Output OUTLINE DIMENSIONS (Units in mm) UPC1687GV PACKAGE OUTLINE S08 8 7 6 5 ORDERING INFORMATION PART NUMBER UPC1687GV-E1 QUANTITY 1000/REEL Note: Embossed Tape, 8 mm wide. Pin 1 indicates pull-out direction of tape. Detail of Lead End N 1 2 3 3.0 MAX 4 +0.10 0.15 -0.05 3 -3 +7 4.94 0.2 3.20.1 0.870.2 1.50.1 1.8 MAX 0.1 0.1 Note: All dimensions are typical unless otherwise specified. PIN CONNECTION 1. OSC-Base (Bypass) 2. OSC-Base (Feedback) 3. OSC-Collector (Coupling) 4. VCC 0.65 +0.10 0.3 -0.05 0.5 0.2 0.575 MAX 5. 6. 7. 8. IF OUT GND RF IN1 (Bypass) RF IN2 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 6/99 DATA SUBJECT TO CHANGE WITHOUT NOTICE |
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