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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 = 25C) * 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
V C C mW
VCC
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.
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PE95Z40-ST
CXA1951Q
Block Diagram and Pin Configuration
LIM DEC2
LIM DEC1
IF DEC2
IF DEC1
LIM VCC
LIM IN
IF OUT
IF VCC
IF IN2
22
30 LIM OUT 31 LIM GND 32 N.C 33 REF INV 34 REF IN 35 PLL GND 36 FC 37 TEST OUT 38 LOCK DET 39 PLL VCC 40 1
29
28
27
26
25
24
23
21 20 IF GND 19 RF OUT2 18 RF OUT1 17 RF VCC 16 RF IN2
1/4 or 1/6 PLL
IF IN1
15 RF IN1 14 RF GND 13 RF GND 12 OSC DEC 11 OSC VCC 10
1/338 or 1/570
OSC
2
3
4
5
6
7
8
9
OSC GND
OSC GND
OSCB2
NSW
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OSC GND
CP OUT
OSCB1
OSCE1
OSCE2
N.C
CXA1951Q
Electrical Characteristics Item Current consumption Front-end conversion gain IF amplifier band width 2nd mixer conversion gain Limiter gain Limiter output level 1st IF output impedance 1st IF input impedance 2nd IF output impedance Limiter input impedance Input High current FC Input Low current Input High current NSW Input Low current High Low High Low Symbol ICC CGmix1 BWif CGmix2 PGlim Volim Zomix1 Zimix2 Zomix2 Zilim IIH IIL IFCin IFCin IOH IOL VOH VOL IRL = 0.1mA IRL = 0.1mA 1 2 fin = 1575.42MHz Measurement conditions Min.
(VCC = 3V, Ta = 25C) Typ. 30 21 41 30 67 0.8 1 1 1 1 30 30 30 30 -1 Max. Unit mA dB MHz dB dB Vp-p k k k k A A A A mA mA V 500 mV
Charge pump output current LOCK DET output voltage
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CXA1951Q
Electrical Characteristics Measurement Circuit
VCC 68 51 4.7 100n 1n
VCC 68 4.7 1n 51
10n 100n 30 0.1 31 32 N. C 33 10n 34 51 35 10n 36 37 38 39 68 VCC 4.7 40 1n 1 2 3 N. C 1n 1n 1n 4 5 6 7 8 9 10 11 1n 4.7 1/4 or 1/6 15 10n PLL 1/338 or 1/570 VCC 14 13 OSC 12 100n 68 VCC 51 16 100p 17 1n 4.7 20 10n 19 VCC 18 68 VCC 29 100n 28 27 26 100n 25 24 10n 23 10n 22 10n 21
VCC
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CXA1951Q
Application Circuit
L7, L8, C10: Jumper L9, C9: Open LQH1NR56K04/LQH1NR47K04 LQH3N331J04/LQS33N220G04 VCC LQS33N680G04 L11 68 C23 4.7 C22 100n 29 L10 330/22 C18 100n C21 C20 100n 4.7 28 27 26 C19 4.7 25 24 C17 82p C16 100n C15 10n 23 C14 10n 22 C11 51p /62p C13 10n 21 20 19 18 17 C6 1n 35 36 R2 100 SW2 37 38 39 40 1 R3 100 SW1 fo/4fo R4 680 L13 68 LQS33N680G04 C30 1n 2 3 N. C C28 10n C29 0 C32 100p R5 0 R6 2.4k R7 47k C34 0.5p L14 10n D1 IT365 C35 0.5p C36 0.5p C33 100p L15 10n C1 4.7 R8 47k VCC L1 68 4 5 6 7 8 9 10 C2 4.7 1/4 or 1/6 PLL f = 1575.42MHz 16 C5 100p 15 C4 100p 14 1/338 or 1/570 13 C37 100n Lock detect C27 4.7 OSC (1521fo/1520fo) 11 C3 1n 12 TZC03P060A110 L4 68 C12 10n L6 0.56/0.47 L5 0.56/0.47 C8 4.7
(19fo/20fo)
N. C 33 34
C7 4.7 L3 68
18.414 or 16.368MHz TCXO (18fo/16fo) input CN2 C26 10n
LQS33N680G04 RF input LQP21A3N3J04 CN1 L2 CV1 3.3n 6p
Test output
D2 IT365
C31 1.5n
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.
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LQS33N680G04
C25 0.1
L12 LQS33N680G04 68 R1 30 1M C24 0.1 31 IC2 TC7SU04F Output 32 (fo/4fo)
CXA1951Q
Package Outline
Unit: mm
40PIN QFP (PLASTIC)
9.0 0.4 + 0.4 7.0 - 0.1 30 21
+ 0.35 1.5 - 0.15 + 0.1 0.127 - 0.05 0.1
31
20
A
40
11
1 0.65 + 0.15 0.1 - 0.1
+ 0.15 0.3 - 0.1
10 0.12 M
0.5 0.2
(8.0)
PACKAGE STRUCTURE
PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL PACKAGE WEIGHT EPOXY RESIN SOLDER / PALLADIUM PLATING COPPER / 42 ALLOY 0.2g
DETAIL A SONY CODE EIAJ CODE JEDEC CODE QFP-40P-L01 QFP040-P-0707
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