CXA1951Q Preliminary GPS Down Converter For the availability of this product, please contact the sales office. Description The CXA1951Q is an IC developed as a GPS down converter, featuring low current consumption and small package. This IC is suitable for the mobile GPS (Global Positioning System). Features • Includes all functions required for the GPS converter. • Total gain: 110dB or more • Operating supply voltage range: 2.7 to 5.5V • Low current consumption: Icc = 30mA (Typ. at Vcc = 3V) • Excellent temperature characteristics Applications GPS (Global Positioning System) Structure Bipolar silicon monolithic IC 40 pin QFP (Plastic) Absolute Maximum Ratings (Ta = 25°C) • Supply voltage VCC 7.0 • Operating temperature Topr –40 to +85 • Storage temperature Tstg –65 to +150 • Allowable power dissipation PD 200 Operating Conditions Supply voltage VCC V °C °C mW 2.7 to 5.5 V Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– PE95Z40-ST CXA1951Q LIM DEC2 LIM DEC1 LIM IN LIM VCC IF VCC IF OUT IF DEC2 IF DEC1 IF IN2 IF IN1 Block Diagram and Pin Configuration 30 29 28 27 26 25 24 23 22 21 LIM OUT 31 20 IF GND LIM GND 32 19 RF OUT2 N.C 33 18 RF OUT1 REF INV 34 17 RF VCC REF IN 35 16 RF IN2 1/4 or 1/6 PLL GND 36 15 RF IN1 PLL FC 37 14 RF GND 1/338 or 1/570 TEST OUT 38 13 RF GND OSC LOCK DET 39 12 OSC DEC PLL VCC 40 1 2 3 4 5 6 7 8 9 10 NSW CP OUT N.C OSC GND OSC GND OSCB1 OSCE1 OSCE2 OSCB2 OSC GND 11 OSC VCC –2– CXA1951Q Electrical Characteristics Item (VCC = 3V, Ta = 25°C) Symbol Current consumption ICC Front-end conversion gain CGmix1 IF amplifier band width Measurement conditions Min. Typ. Max. Unit 30 mA 21 dB BWif 41 MHz 2nd mixer conversion gain CGmix2 30 dB Limiter gain PGlim 67 dB Limiter output level Volim 0.8 Vp-p 1st IF output impedance Zomix1 1 kΩ 1st IF input impedance Zimix2 1 kΩ 2nd IF output impedance Zomix2 1 kΩ Limiter input impedance Zilim 1 kΩ Input High current IIH 30 µA Input Low current IIL 30 µA Input High current IFCin 30 µA Input Low current IFCin 30 µA FC NSW fin = 1575.42MHz –1 Charge pump output current High IOH Low IOL LOCK DET output voltage High VOH IRL = 0.1mA Low VOL IRL = 0.1mA –3– mA 1 mA 2 V 500 mV CXA1951Q Electrical Characteristics Measurement Circuit VCC VCC 68µ 68µ 51 4.7µ 4.7µ 1n 1n 100n 51 10n 100n 100n 100n 30 28 29 27 26 25 10n 10n 23 24 10n 21 22 0.1µ 31 20 32 19 N. C 33 18 34 17 10n VCC 68µ 10n VCC 1n 51 35 4.7µ 16 10n 100p 1/4 or 1/6 36 15 10n PLL 37 VCC 14 1/338 or 1/570 38 13 OSC 39 12 100n 68µ 40 VCC 4.7µ 51 68µ VCC 11 1n 1n 2 1 3 4 5 6 8 7 9 10 N. C 1n 1n 1n VCC –4– 4.7µ CXA1951Q Application Circuit L7, L8, C10: Jumper L9, C9: Open LQH1NR56K04/LQH1NR47K04 LQH3N331J04/LQS33N220G04 VCC C18 100n LQS33N680G04 L11 68µ C23 4.7µ C25 0.1µ L6 0.56µ/0.47µ C17 82p C22 100n C16 100n C21 C20 100n 4.7µ L12 LQS33N680G04 68µ R1 30 1M C24 0.1µ 31 IC2 TC7SU04F Output 32 (fo/4fo) 28 29 C11 51p /62p C15 10n C19 4.7µ 27 26 25 C14 10n 23 24 C13 10n L5 0.56µ/0.47µ C12 10n 20 34 17 35 1/4 or 1/6 f = 1575.42MHz PLL 37 15 C4 100p 14 1/338 or 1/570 38 13 C37 100n Lock detect C27 4.7µ L3 68µ LQS33N680G04 RF input LQP21A3N3J04 CN1 L2 CV1 3.3n 6p 16 C5 100p R2 100 Test output C7 4.7µ C6 1n 36 SW2 L4 68µ 19 18 CN2 C26 10n (19fo/20fo) 21 22 N. C 33 18.414 or 16.368MHz TCXO (18fo/16fo) input C8 4.7µ OSC 39 TZC03P060A110 12 (1521fo/1520fo) 40 11 C3 1n 2 1 R3 100 3 R4 680 R5 0 C29 0 L13 68µ LQS33N680G04 6 5 9 8 7 C34 0.5p C32 100p C28 10n SW1 fo/4fo 4 10 N. C C30 1n R6 2.4k C35 0.5p L14 10n R7 47k C31 1.5n D1 IT365 C36 0.5p D2 IT365 C33 100p C2 4.7µ L1 68µ L15 10n C1 4.7µ R8 47k VCC Notice: Two component values are indicated, the order is depending on the output frequency. The first value is as for 'fo output' and the second value is as for '4fo output'. Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. –5– LQS33N680G04 L10 330µ/22µ CXA1951Q Package Outline Unit: mm 40PIN QFP (PLASTIC) + 0.35 1.5 – 0.15 + 0.1 0.127 – 0.05 9.0 ± 0.4 + 0.4 7.0 – 0.1 0.1 21 30 20 31 A 11 40 1 + 0.15 0.3 – 0.1 0.65 10 ± 0.12 M 0.5 ± 0.2 (8.0) + 0.15 0.1 – 0.1 DETAIL A PACKAGE STRUCTURE PACKAGE MATERIAL EPOXY RESIN SONY CODE QFP-40P-L01 LEAD TREATMENT SOLDER / PALLADIUM PLATING EIAJ CODE ∗QFP040-P-0707 LEAD MATERIAL COPPER / 42 ALLOY PACKAGE WEIGHT 0.2g JEDEC CODE –6–