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| SILICON MMIC L BAND DOWNCONVERTER FEATURES * WIDE BAND OPERATION UP TO 2.5 GHz * INTERNAL BALANCED AMPLIFIER FOR VCO * SINGLE ENDED PUSH-PULL IF AMPLIFIER * 5 V SINGLE SUPPLY VOLTAGE: ICC = 30 to 35 mA * LOW CURRENT DISSIPATION * TAPE AND REEL PACKAGING OPTION AVAILABLE OSC base (feedback) 2 OSC base (bypass) 1 UPC2721GR UPC2722GR INTERNAL BLOCK DIAGRAM 8 OSC 7 OSC BUFFER RFIN1 RFIN2 (bypass) DESCRIPTION The UPC2721 and UPC2722 are L-Band frequency converters manufactured using the NESAT III MMIC process. These products consist of a double balanced mixer, local oscillator, IF preamplifier, and constant voltage generator. These devices are designed for low cost cellular radios, GPS receivers, PCS, and UHF TV tuner applications. The UPC2721 output amplifier is a single-end push-pull amplifier designed for operation into a 50 load. The UPC2722 output amplifier is the collector of one side of a balanced amplifier pair and operates best into a high impedance load. The absence of capacitive coupling in the UPC2722 permits better performance at IF frequencies below 25 MHz. NEC's stringent quality assurance and test procedures ensure the highest reliability and performance. OSC collector (coupling) 3 6 GND IF AMP VCC 4 REG. MIX 5 IFOUT ELECTRICAL CHARACTERISTICS (TA = 25C, VCC = 5 V, PLO = -10 dBm) PART NUMBER PACKAGE OUTLINE SYMBOLS ICC fRF fIF CG PARAMETERS AND CONDITIONS Circuit Current RF Frequency Range IF Frequency Range Conversion Gain2 fRF = 900 to 2000MHz, fIF = 50 to 400 MHz fIF = 400 to 400 MHz UNITS mA GHz MHz dB dB dB dBm dBm dB dB dBm dBm MIN 29 0.9 50 18 21 22 19.5 7 7 9 11 +10 +8.5 13 15 UPC2721GR G08 TYP 38 MAX 45.5 2.0 600 24 MIN 19 0.9 DC 15 18 19 17 6 6 9 11 +9 +8 13 15 UPC2722GR G08 TYP 28 MAX 37 2.0 600 21 PSAT NF IP3 Saturated Output Power2 fRF = 800 to 2000 MHz, fIF = 400 MHz Noise Figure fRF = 900 MHz, fIF = 400 MHz, fRF = 2.0 GHz, fIF = 400 MHz 2 2 SSB Third Order Intercept Point, f1 = 900 MHz, f2 = 938 MHz f1 = 2.0 GHz, f2 = 2.038 GHz Notes: 1. Mounted on a 50 x 50 x 1.6 mm thick glass epoxy board with double sided copper. 2. Minimum and maximum specifications for CG and PSAT are measured at fRF = 900 MHz and 2.0 GHz and at fIF = 402.8 MHz. California Eastern Laboratories UPC2721GR, UPC2722GR, ABSOLUTE MAXIMUM RATINGS1 (TA = 25C) SYMBOLS VCC PT TOP TSTG PARAMETERS Supply Voltage2 Power Dissipation3 Operating Temperature Storage Temperature UNITS V mW C C RATINGS 6 250 -40 to +85 -65 to +150 Notes: 1. Operation in excess of any one of these parameters may result in permanent damage. 2. Recommended operating VCC range is 4.5 to 5.5 V max. 3. TA = +85C mounted on a 50 x 50 x 1.6 mm thick glass epoxy board with double sided copper. PIN DESCRIPTIONS PIN NO. 1 SYMBOL OSC base (bypass) PIN VOLT TYP (V) 2.9 DESCRIPTION Internal oscillator consists of a balance amplifier. Pin 2 and pin 3 should be externally equipped with a tank resonator circuit in order to oscillate with feedback loop. Pin 1 should be grounded through coupling capacitor ~0.5 pF. EQUIVALENT CIRCUIT 2 Vcc 3 1 2 OSC base (feedback) 2.9 3 OSC collector (coupling) VCC IF Output 5.0 Pin 3 is an open collector. This pin should be coupled through resistor or choke coil in order to adjust Q and connect the supply voltage. Supply voltage pin for the IC. In the UPC2721 the amplifier is designed as single-ended push-pull amplifier. This pin is an emitter follower output with a wideband 50 impedance. UPC2721 4 5 5.0 UPC2721 2.9 40 5 UPC2722 5.0 In the UPC2722 the IF amplifier is designed as a balanced amplifier. This pin is an open collector output with high impedance dependent on external inductance. UPC2722 5 6 7 GND RF input2 (bypass) 0.0 2.4 GND pin for the IC. Pin 7 and pin 8 are inputs to a doublebalanced mixer. Either pin can be assigned for input or ground. 8 RF input1 2.4 7 8 UPC2721GR, UPC2722GR TYPICAL PERFORMANCE CURVES (TA = 25C) CIRCUIT CURRENT VS. SUPPLY VOLTAGE 60 No Input Signal +10 fRF = 2 GHz fRF = 900 MHz fRF = 2 GHz 0 fRF = 900 MHz -5 OUTPUT POWER VS. INPUT POWER Output Power, POUT (dBm) Circuit Current, ICC (mA) 50 UPC2721 40 +5 30 20 UPC2722 10 -10 VCC = 5 V fIF = 402 MHz -15 0 1 2 3 4 5 6 -20 -40 -30 -20 -10 0 +10 +20 Supply Voltage, VCC (V) CONVERSION GAIN AND NOISE FIGURE vs. RF FREQUENCY 30 VCC = 5 V PRF = -30 dBm PLO = -5 dBm fIF = 402 MHZ CG 20 UPC2721 GV UPC2722 GV UPC2721 GV 10 NF 5 UPC2722 GV 30 25 20 PC2721 fRF fRF C2 72 1 UP C2 722 UP Input Power, PIN (dBm) UPC2721 CONVERSION GAIN vs. IF FREQUENCY Noise Figure, NF (dB) Conversion Gain, CG (dB) Conversion Gain, CG (dB) 25 = 2.0 GHZ = 900 MHZ 15 15 10 5 VCC = 5 V PLO = 0 dBm PRF = -30 dBm 100 200 300 400 500 600 0 0.5 1.0 1.5 2.0 2.5 3.0 0 Input Frequency, fRF (GHz) IF Frequency, fIF (MHz) Output Power, POUT (dBm) 3rd Order Intermodulation Distortion, IM3 (dBm) Output Power, POUT (dBm) 3rd Order Intermodulation Distortion, IM3 (dBm) UPC2721 IM3 AND OUTPUT POWER vs. INPUT POWER +10 UPC2722 IM3 AND OUTPUT POWER vs. INPUT POWER +10 0 0 -10 -20 -30 -40 -50 Pout Pout -10 -20 -30 -40 -50 -60 -40 -30 -20 -10 0 IM3 IM3 fRF1 = 900 MHZ fRF2 = 938 MHZ fLO = 1.3 GHZ fRF1 = 2.0 GHZ fRF2 = 2.038 GHZ fLO = 2.4 GHZ -60 fRF1 = 900 MHZ fRF2 = 938 MHZ fLO = 1.3 GHZ (0 dBm) fRF1 = 2.0 GHZ fRF2 = 2.038 GHZ fLO = 2.4 GHZ (0 dBm) -40 -30 -20 -10 0 Input Power, PIN (dBm) Input Power, PIN (dBm) UPC2721GR, UPC2722GR TYPICAL PERFORMANCE CURVES UPC2721 OSC FREQUENCY STABILITY vs. OSC FREQUENCY (TA = 25C) UPC2722 OSC FREQUENCY STABILITY vs. OSC FREQUENCY Oscillation Frequency Stability, fSTB (MHz) VCC = 4.5 V +4.0 Oscillation Frequency Stability, fSTB (MHz) +6.0 +6.0 VCC = 5.5 V +4.0 VCC = 4.5 V VCC = 5.5 V +2.0 +2.0 0 0 VCC = 5.5 V -2.0 VCC = 4.5 V -2.0 -4.0 -4.0 VCC = 5.5 V VCC = 4.5 V -6.0 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 -6.0 -1.4 -1.5 -1.6 -1.7 -1.8 -1.9 -2.0 -2.1 -2.2 Oscillation Frequency, fOSC (GHz) Oscillation Frequency, fOSC (GHz) TEST CIRCUITS External LO Test Circuit 100 pF 1 0.5 pF 8 RF IN LO IN 100 pF 10 2 7 2 pF 20 pF 3 100 4 100 pF 20 pF 6 *L 2 5 0.8 pF 1.5 pF 1000 pF IF OUT 1.8 H 5.0 V 5.0 V UPC2722 Only *L2 = 3 turn, 0.4 diameter wire; 4.0 mm coil inside diameter. (Approximately 37 nH) UPC2721GR, GV, UPC2722GR, GV APPLICATION CIRCUIT VTUNE 1000 pF 51k 100 pF ALPHA SMV1204-04 1 3.3nH 1pF 2 1pF 1pF 3 47 4 5 0.8 pF 1.5 pF 1.8 H 6 7 2 pF 20 pF 8 RF IN *L 2 1000 pF IF OUT 18nH 5.0 V 10pF UPC2722 Only 20pF 5.0 V *L2 = 3 turn, 0.4 diameter wire; 4.0 mm coil inside diameter. (Approximately 37 nH) UPC2721GR, GV, UPC2722GR, GV OUTLINE DIMENSIONS (Units in mm) UPC2721GR/UPC2722GR PACKAGE OUTLINE G08 8 7 6 5 ORDERING INFORMATION PART NUMBER UPC2721GR - E1 UPC2722GR - E1 QTY 2500/Reel 2500/Reel 2721 XXX N 1 2 3 5.70 MAX 4 6.5 0.3 0.15 +0.10 -0.05 4.4 1.1 1.49 1.8 MAX 0.1 0.1 1.27 +0.10 0.40 -0.05 0.6 0.2 0.94 MAX LEAD CONNECTIONS 1. 2. 3. 4. 5. 6. 7. 8. OSC-Base (Bypass) OSC-Base (Feed back) OSC-Collector (Coupling) VCC IF OUT GND RFIN2 RFIN1 Notes: Package will be marked as 2721 or 2722 as shown. All dimensions are typical unless otherwise specified. Lead Material: Alloy 42 Lead Plating: Lead tin alloy 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 8/97 DATA SUBJECT TO CHANGE WITHOUT NOTICE |
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