DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µPC2794GS FREQUENCY DOWN CONVERTER FOR VHF TO UHF BAND TV/VCR TUNER DESCRIPTION The µPC2794GS is a Silicon monolithic IC designed for TV/VCR tuner applications. This IC consists of a double balanced mixer (DBM), local oscillator, preamplifier for precscaler operation, IF amplifier, regulator, UHF/VHF switching circuit, and so on. This one-chip IC covers a wide frequency band from VHF to UHF bands. This IC is packaged in 20-pin SOP (Small Outline Package) suitable for surface mounting. FEATURES • VHF to UHF bands operation. • Low distortion CM: VHF (@fRF = 470 MHz) 96 dBµ • Supply voltage : 9V UHF (@fRF = 890 MHz) 92 dBµ • Packaged in 20-pin SOP suitable for surface mounting ORDERING INFORMATION Part Number µPC2794GS-E1 Package Package Style 20-pin plastic SOP (300 mil) Embossed tape 24 mm wide. 2.5 k/REEL. Pin 1 indicates pull-out direction of tape For evaluation sample order, please contact your local NEC office. (Part number for sample order: µPC2794GS) Caution electro-static sensitive device The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. P11888EJ3V0DS00 (3rd edition) Date Published October 1999 N CP(K) Printed in Japan The mark shows major revised points. © 1996,1999 µPC2794GS PIN CONFIGURATION (Top View) 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 20 10 11 UHF OSC Collector UHF OSC Base UHF OSC Base UHF OSC Collector UB OSC OUTPUT GND VHF OSC Base VHF OSC Base VHF OSC Collector REG IF OUTPUT VCC MIX OUTPUT MIX OUTPUT VHF RF INPUT VHF RF INPUT GND UHF RF INPUT UHF RF INPUT INTERNAL BLOCK DIAGRAM 20 19 18 17 16 15 14 13 12 11 IF Amp REG. U OSC 1 2 2 3 V OSC 4 5 6 7 Data Sheet P11888EJ3V0DS00 8 9 10 (Tr. 1) (Tr. 2) (Tr. 1) (Tr. 2) (Tr. 1) (Tr. 2) (Tr. 1) µPC2794GS PIN EXPLANATION Pin No. 1 2 Symbol Pin Voltage TYP. above: VHF mode below: UHF mode UOSC collector (Tr. 1) 6.90 UOSC base (Tr. 2) 6.00 6.25 3.90 3 UOSC base (Tr. 1) 6.00 3.90 4 UOSC collector (Tr. 2) 6.90 6.25 5 UB — 9.0 Function and Explanation Equivalent Circuit Collector pin of UHF oscillator. Assemble LC resonator with 2 pin through capacitor ~ 1 pF to oscillate with active feedback loop. Base pin of UHF oscillator with balance amplifier. Connected to LC resonator through feedback capacitor ~ 300 pF. 3 1 4 2 5 Base pin of UHF oscillator with balance amplifier. Connected to LC resonator through feedback capacitor ~ 300 pF. Collector pin of UHF oscillator with balance amplifier. Assemble LC resonator with 3 pin through capacitor ~ 1 pF to oscillate with active feedback loop. Double balanced oscillator with transistor 1 and transistor 2. Switching pin for VHF or UHF operation. VHF operation = open UHF operation = 9.0 V 6 OSC output 5.40 UHF and VHF oscillator output pin. In case of F/S tuner application, connected PLL symthesizer IC’s input pin. 8 GND VOSC base (Tr. 1) 9 10 VOSC base (Tr. 2) VOSC collector (Tr. 1) 0.0 GND pin of VHF and UHF 0.0 oscillator. 3.50 Base pin of VHF oscillator. Grounded through capacitor ~ 5.90 3.50 5.90 6.20 6.90 from OSC 6 5.40 7 REG 8 10 9 REG 10 pF. Base pin of VHF oscillator. Assemble LC resonator with 10 pin to oscillate with active feedback loop. Collector pin of VHF oscillator. Connected to LC resonator through feedback capacitor ~ 3 pF. Data Sheet P11888EJ3V0DS00 3 µPC2794GS Pin No. 11 12 Symbol REG IF output Pin Voltage TYP. above: VHF mode below: UHF mode Function and Explanation 6.90 Monitor pin of regulator output 6.90 voltage. 2.60 IF output pin of VHF-UHF band functions. Equivalent Circuit 13 12 2.60 13 14 15 16 VCC 9.0 Power supply pin for VHF- 9.0 UHF band functions. MIX 7.10 VHF and UHF MIX output pins. output1 7.00 These pins should be MIX 7.10 output2 7.00 VRF input (bypass) 2.75 VRF input 2.75 14 15 equipped with tank circuit to adjust intermediate frequency. Bypass pin for VHF MIX input. Grounded through capacitor. 17 2.80 17 13 from VHF OSC 16 VRF signal input pin from antenna. 2.80 18 GND 0.0 GND pin of MIX, IF amplifier 13 and regulator. 14 15 0.0 19 URF input (bypass) – Bypass pin for UHF MIX input. Grounded through capacitor. 19 2.65 20 URF input – URF signal input pin from antenna. 2.65 4 Data Sheet P11888EJ3V0DS00 20 from UHF OSC µPC2794GS ABSOLUTE MAXIMUM RATINGS (TA = 25 °C unless otherwise specified) Parameter Symbol Supply Voltage 1 VCC Supply Voltage 2 UB Condition TA = 80 °C*1 Rating Unit 11.0 V 11.0 V 700 mW Power dissipation PD Operating ambient temperature TA –40 to +80 °C Storage temperature Tstg –60 to +150 °C *1 Mounted on 50 × 50 × 1.6 mm double copper epoxy glass board. RECOMMENDED OPERATING RANGE Parameter Symbol MIN. TYP. MAX. Unit Supply voltage 1 VCC 8.0 9.0 10.0 V Supply voltage 2 UB 8.0 9.0 10.0 V Operating ambient temperature TA –20 +25 +80 °C ELECTRICAL CHARACTERISTICS (TA = 25 °C, VCC = 9 V, fIF = 45 MHz, Posc = –10 dBm) Parameter Symbol Test Conditions MIN. TYP. MAX. Unit Circuit Current 1 ICC1 @VHF, no input signal *1 36.0 48.0 56.0 mA Circuit Current 2 ICC2 @UHF, no input signal *1 37.0 50.0 60.0 mA Conversion Gain 1 CG1 fRF = 55 MHz, PRF = –30 dBm *2 19.5 23.0 26.5 dB Conversion Gain 2 CG2 fRF = 200 MHz, PRF = –30 dBm *2 19.5 23.0 26.5 dB Conversion Gain 3 CG3 fRF = 470 MHz, PRF = –30 dBm *2 20.5 24.0 27.5 dB Conversion Gain 4 CG4 fRF = 470 MHz, PRF = –30 dBm *2 28.5 32.0 35.5 dB Conversion Gain 5 CG5 fRF = 890 MHz, PRF = –30 dBm *2 28.5 32.0 35.5 dB Noise Figure 1 NF1 fRF = 55 MHz *3 — 11.0 14.0 dB Noise Figure 2 NF2 fRF = 200 MHz *3 — 11.0 14.0 dB Noise Figure 3 NF3 fRF = 470 MHz *3 — 11.0 14.0 dB Noise Figure 4 NF4 fRF = 470 MHz *3 — 9.0 12.0 dB Noise Figure 5 NF5 fRF = 890 MHz *3 — 10.0 13.0 dB Maximum Output Power 1 PO (sat)1 fRF = 55 MHz, PRF = 0 dBm *2 10.0 13.0 — dBm Maximum Output Power 2 PO (sat)2 fRF = 200 MHz, PRF = 0 dBm *2 10.0 13.0 — dBm Maximum Output Power 3 PO (sat)3 fRF = 470 MHz, PRF = 0 dBm *2 10.0 13.0 — dBm Maximum Output Power 4 PO (sat)4 fRF = 470 MHz, PRF = 0 dBm *2 10.0 13.0 — dBm Maximum Output Power 5 PO (sat)5 fRF = 890 MHz, PRF = 0 dBm *2 10.0 13.0 — dBm *1 By measurement circuit 1 *2 By measurement circuit 2 *3 By measurement circuit 3 Data Sheet P11888EJ3V0DS00 5 µPC2794GS STANDARD CHARACTERISTICS (Reference Values) (TA = 25 °C, VCC = 9 V) Parameter 1 % cross-modulation distortion 1 1 % cross-modulation distortion 2 1 % cross-modulation distortion 3 1 % cross-modulation distortion 4 1 % cross-modulation distortion 5 Symbol CM1 CM2 CM3 CM4 CM5 Test Conditions fdes = 55 MHz, fundes = fdes + 6 MHz, Pdes = –30 dBm, fIF = 45 MHz, Posc = –10 dBm, AM 100 kHz, 30 % modulation, DES/CM = 46 dBc fdes = 200 MHz, fundes = f des + 6 MHz, Pdes = –30 dBm, fIF = 45 MHz, Posc = –10 dBm, AM 100 kHz, 30 % modulation, DES/CM = 46 dBc fdes = 470 MHz, fundes = f des + 6 MHz, Pdes = –30 dBm, fIF = 45 MHz, Posc = –10 dBm, AM 100 kHz, 30 % modulation, DES/CM = 46 dBc fdes = 470 MHz, fundes = f des + 6 MHz, Pdes = –30 dBm, fIF = 45 MHz, Posc = –10 dBm, AM 100 kHz, 30 % modulation, DES/CM = 46 dBc fdes = 890 MHz, fundes = f des + 6 MHz, Pdes = –30 dBm, fIF = 45 MHz, Posc = –10 dBm, AM 100 kHz, 30 % modulation, DES/CM = 46 dBc *1 By measurement circuit 4 6 Data Sheet P11888EJ3V0DS00 Value for Reference Unit 100 dBµ 100 dBµ 96 dBµ 94 dBµ 92 dBµ *1 *1 *1 *1 *1 µPC2794GS TYPICAL CHARACTERISTICS ICC vs. VCC ICC vs. VCC 50 VHF no input signal 70 measurement circuit 1 60 ICC - Circuit Current - mA ICC - Circuit Current - mA 80 50 40 30 20 10 0 0 2 4 6 8 TA = 80 °C TA = 25 °C TA = –20 °C 10 12 UHF no input signal 70 measurement circuit 1 60 50 40 30 20 10 0 0 VCC - Supply Voltage - V 2 4 6 VCC - Supply Voltage - V Pout vs. Pin Pout vs. Pin 20 20 VCC = 9 V fRF = 470 MHz fIF = 45 MHz POSC = –10 dBm 10 measurement circuit 2 Pout - Output Power - dBm Pout - Output Power - dBm 8 0 –10 VCC = 9 V fRF = 890 MHz fIF = 45 MHz POSC = –10 dBm 10 measurement circuit 2 0 –10 TA = 80 °C TA = 25 °C TA = –20 °C –20 –40 –30 –20 –10 0 TA = 80 °C TA = 25 °C TA = –20 °C –20 –40 10 –30 –20 CM - 1 % Cross-modulation Distortion - dBµ NF - Noise Figure - dB CG - Conversion Gain - dB VCC = 9 V fIF = 45 MHz PRF = –30 dBm POSC = –10 dBm 30 measurement circuit 2, 3 20 10 TA = 80 °C TA = 25 °C TA = –20 °C 400 600 0 10 800 1 000 CM vs. fRF CG, NF vs. fRF 40 200 –10 Pin - Input Power - dBm Pin - Input Power - dBm 0 0 TA = 80 °C TA = 25 °C TA = –20 °C 10 12 800 1 000 120 VCC = 9 V fundes = fRF + 6 MHz PRF = –30 dBm fIF = 45 MHz 110 POSC = –10 dBm measurement circuit 4 100 90 TA = 80 °C TA = 25 °C TA = –20 °C 80 0 200 400 600 fRF - Input Frequency - MHz fRF - Input Frequency - MHz Data Sheet P11888EJ3V0DS00 7 µPC2794GS STANDARD CHARACTERISTICS (by application circuit example) Pout vs. Pin CG, NF vs. fRF 20 VCC = 9 V fIF = 45 MHz PRF = –30 dBm Pout - Output Power - dBm CG - Conversion Gain - dB NF - Noise Figure - dB 40 30 20 10 VCC = 9 V fIF = 45 MHz fRF = 802 MHz 10 fRF = 362 MHz 0 –10 VCC = 9 V fIF = 45 MHz 0 0 200 400 600 800 –20 –40 1 000 fRF - Input Frequency - MHz –30 –20 –10 0 10 Pin - Input Power - dBm CM vs. fRF 6 Channel Beat 110 20 Pout - Output Power - dBm CM - 1 % Cross Modulation Distortion - dBµ 10 100 90 VCC = 9 V fundes = fRF + 6 MHz fIF = 45 MHz PRF = –30 dBm 80 0 200 400 0 –10 –20 –30 –40 VCC = 9 V fP = 83.25 MHz fS = 87.75 MHz fOSC = 129 MHz –50 –60 600 800 –70 –40 1 000 fRF - Input Frequency - MHz –30 Vtu vs. fOSC 30 Vtu - Tuning Voltage - V 25 20 VL VH U 15 10 5 0 0 200 400 600 800 fOSC - OSC Frequency - MHz 8 –20 –10 Pin - Input Power - dBm Data Sheet P11888EJ3V0DS00 1 000 0 µPC2794GS INPUT IMPEDANCE (by measurement circuit 5) <VRF INPUT: 17 PIN> 1 45 MHz 931.31Ω −247.16Ω 2 200 MHz 358.08Ω −395.55Ω 3 470 MHz 95.062Ω −184.34Ω 3 START STOP 1 2 0.045000000 GHz 0.500000000 GHz <URF INPUT: 20 PIN> 1 400 MHz 71.531Ω −178.98Ω 2 600 MHz 31.352Ω −96.094Ω 3 890 MHz 10.85Ω −42.965Ω 1 3 START STOP 2 0.400000000 GHz 1.000000000 GHz Data Sheet P11888EJ3V0DS00 9 µPC2794GS OUTPUT IMPEDANCE (by measurement circuit 5) <IF OUTPUT: 12 PIN> 1 45 MHz 28.862Ω 13.361Ω 1 START STOP 10 0.045000000 GHz 0.065000000 GHz Data Sheet P11888EJ3V0DS00 µPC2794GS MEASUREMENT CIRCUIT 1 OPEN VCC(9V) OPEN 1000 pF 1000 pF 1000 pF 20 1000 pF 19 18 17 OPEN 1000 1000 pF pF 20T 27 pF 16 15 1000 pF 14 13 12 11 REG 1 2 3 4 5 6 7 9 1000 pF 1000 pF 1000 pF 8 1000 pF 10 1000 pF 1000 pF OPEN 5pin Voltage OPEN OPEN UB(9V) VHF OPEN UHF 9V MEASUREMENT CIRCUIT 2 SG1 VHF Spectrum Analyzer UHF 1000 pF 1000 pF 1000 pF 20 19 1000 pF 18 17 16 1000 pF 20T 27 pF 15 14 13 1000 pF 1000 pF 12 11 REG 1 1000 pF 2 3 4 5 6 7 1000 pF 1000 pF 8 9 1000 pF 1000 pF OPEN 10 5pin Voltage 1000 pF VHF OPEN UHF 9V VHF SG2 UHF Data Sheet P11888EJ3V0DS00 11 µPC2794GS MEASUREMENT CIRCUIT 3 Noise Meter VCC(9V) Noise Source VHF 1000 pF UHF 1000 pF 1000 pF 20 1000 pF 19 18 17 BPF 1000 1000 pF pF 1000 pF 20T 27 pF 16 15 14 13 12 11 REG 1 2 3 4 5 6 7 8 9 1000 pF 1000 pF 1000 pF 1000 pF 1000 pF 10 OPEN 5pin Voltage VHF OPEN UHF 9V VHF SG1 UB(9V) UHF MEASUREMENT CIRCUIT 4 MIX PAD VHF Spectrum Analyzer UHF 1000 pF SG1 desire SG2 1000 pF 1000 pF 20 19 1000 pF 18 17 16 1000 1000 pF pF 1000 pF 20T 27 pF 15 14 13 12 11 undesire REG 1 2 3 4 5 6 7 8 1000 pF 1000 pF 1000 pF 1000 pF 9 10 5pin Voltage 1000 pF OPEN VHF SG3 UHF 12 Data Sheet P11888EJ3V0DS00 VHF OPEN UHF 9V µPC2794GS MEASUREMENT CIRCUIT 5 Network Analyzer VCC(9V) 1000 pF 1000 pF 1000 pF 20 19 1000 pF 1000 pF 18 17 1000 pF 1000 pF 16 15 14 13 12 11 REG 1 2 3 4 5 6 7 8 1000 pF 1000 pF 1000 pF 1000 pF 9 10 1000 pF 5pin Voltage OPEN OPEN OPEN UB(9V) Data Sheet P11888EJ3V0DS00 VHF OPEN UHF 9V 13 µPC2794GS APPLICATION CIRCUIT EXAMPLE URF IN VRF IN VCC 1 000 pF 1 000 pF 1 000 pF 19 18 17 1 000 pF 20T 1 000 pF 27pF 1 000 pF 20 IF OUT 16 15 14 1 000 pF 13 12 11 REG. 1 4 pF 2 1 pF 360 pF Vtu 47 k 3 3 pF 6 pF 4 5 6 7 1 pF 9 10 10 pF 200 pF 3 pF 1 000 pF 360 pF 8 pF 8 47 k 75 47 k 47 k 0.5 pF 4T OSC OUT 2T 1T363 1T363 × 2 1 000 pF Vtu 47 k 82 pF 1 000 pF HB 47 k UB 7T 1 000 pF LB 1 000 pF 2.7 k The application circuits and their parameters are for reference only and are not intended for use in actual design-ins. 14 Data Sheet P11888EJ3V0DS00 µPC2794GS OSC OUT VLO IN URF IN µPC2794GS IF OUT VRF IN ILLUSTRATION OF THE EVALUATION BOARD FOR APPLICATION CIRCUIT EXAMPLE (Surface) A ULO IN 1 1000p B Data Sheet P11888EJ3V0DS00 15 µPC2794GS ILLUSTRATION OF THE EVALUATION BOARD FOR APPLICATION CIRCUIT EXAMPLE (Back side) Vtu A B 1000p 1000p 1000p 6p,8p 4p 47k 1p 360p 1T363 3p 0.5p 1p 20T 360p 47k 2T 1000p 27p 1000p VCC 10p 1T363×2 3p 200p 47k 82p 75 1000p 47k 4T 47k 1000p 7T 2.7k 1000p 1000p 47k 1000p 16 ⋅ represents cutout ⋅ represents short-circuit strip 1000p LB HB Data Sheet P11888EJ3V0DS00 UB µPC2794GS PACKAGE DIMENSIONS 20 PIN PLASTIC SOP (300 mil) (UNIT: mm) 20 11 detail of lead end 3° +7° –3° 1 10 12.7±0.3 7.7±0.3 5.6±0.2 1.55±0.1 0.78 MAX. 1.27 1.1 0.6±0.2 +0.10 0.4±0.1 0.12 M 0.10 0.20 –0.05 0.1±0.1 1.8 MAX. NOTE Each lead centerline is located within 0.12 mm of its true position (T.P.) at maximum material condition. Data Sheet P11888EJ3V0DS00 17 µPC2794GS NOTE ON CORRECT USE (1) Observe precautions for handling because of electro-static sensitive devices. (2) Form a ground pattern as widely as possible to minimize ground impedance (to prevent undesires oscillation). (3) Keep the track length of the ground pins as short as possible. (4) A low pass filter must be attached to VCC line. (5) A matching circuit must be externally attached to output port. RECOMMENDED SOLDERING CONDITIONS The following conditions (see table below) must be met when soldering this product. Please consult with our sales officers in case other soldering process is used or in case soldering is done under different conditions. For details of recommended soldering conditions for surface mounting, refer to information document SEMICONDUCTOR DEVICE MOUNTING TECHNOLOGY MANUAL (C10535E). µPC2794GS Soldering Process Soldering Conditions Symbol Infrared ray reflow Peak package’s surface temperature: 235 °C or below, Reflow time: 30 seconds or below (210 °C or higher), Number of reflow process: 3, Exposure limit*1: None IR35-00-3 VPS Peak package’s surface temperature: 215 °C or below, Reflow time: 40 seconds or below (200 °C or higher), VP15-00-3 Number of reflow process: 3, Exposure limit*1: None Partial heating method *1 Terminal temperature: 300 °C or below, Flow time: 3 seconds or below, Exposure limit*1: None Exposure limit before soldering after dry-pack package is opened. Storage conditions: 25 °C and relative humidity at 65 % or less. Caution Do not apply more than single process at once, except for “Partial heating method”. 18 Data Sheet P11888EJ3V0DS00 µPC2794GS [MEMO] Data Sheet P11888EJ3V0DS00 19 µPC2794GS NESAT (NEC Silicon Advanced Technology) is a trademark of NEC Corporation. • The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. • No part of this document may be copied or reproduced in any form or by any means without the prior written consent of NEC Corporation. NEC Corporation assumes no responsibility for any errors which may appear in this document. • NEC Corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. 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Standard: Computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots Special: Transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) Specific: Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. The quality grade of NEC devices is "Standard" unless otherwise specified in NEC's Data Sheets or Data Books. If customers intend to use NEC devices for applications other than those specified for Standard quality grade, they should contact an NEC sales representative in advance. M7 98.8