UPB1003GS NEC, UPB1003GS Datasheet - Page 3

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UPB1003GS

Manufacturer Part Number
UPB1003GS
Description
REFERENCE FREQUENCY 16.368 MHz/ 2ND IF FREQUENCY 4.092 MHz RF/IF FREQUENCY DOWN-CONVERTER PLL FREQUENCY SYNTHESIZER IC FOR GPS RECEIVER
Manufacturer
NEC
Datasheet

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PRODUCT LINE-UP (T
SYSTEM APPLICATION EXAMPLE
General
Purpose
Wideband
Separate
IC
Clock
Frequency
Specific
1 chip IC
1575.42 MHz
Notice
GPS receiver RF block diagram
Caution This diagram schematically shows only the PB1005K’s internal functions on the system.
Antenna
Type
from
e.g.
Part Number
Typical performance. Please refer to ELECTRICAL CHARACTERISTICS in detail.
To know the associated products, please refer to their latest data sheets.
PC2756T
PC2756TB
PC2753GR
PB1003GS
PB1004GS
PB1005GS
PB1005K
PC2749TB
This diagram does not present the actual application circuits.
LNA
1540f
BPF
RF down-converter with osc. Tr 2.7 to 3.3
IF down-converter with gain
control amplifier
RF/IF down-converter
+ PLL synthesizer
REF = 18.414
1stIF = 28.644/2ndIF = 1.023
RF/IF down-converter
+ PLL synthesizer
REF = 16.368
1stIF = 61.380/2ndIF = 4.092
0
A
(Frequency unit: MHz)
= +25 C, V
1540f
Functions
OSC
0
1stLO-OSC1
RF-MIX
RF-MIX
1600f
Preliminary Data Sheet P14016EJ1V0DS00
CC
out
0
1stLO-OSC2
= 3.0 V)
60f
1/25
0
BPF
IF-MIX
IF-MIX
2.7 to 3.3
2.7 to 3.3
2.7 to 3.3
2.7 to 3.3
in
V
(V)
64f
CC
1/8
V
0
LO
IF-MIX
GC
OUT
8f
0
out
(mA)
37.5
37.5
45.0
LOOP
6.0
6.5
AMP
I
40f
CC
P D
8f
0
0
LPF
60 to 79 20-pin plastic SSOP
72 to 92
72 to 92
72 to 92
V
(dB)
CC
CG
14
2ndlFin1
1/2
2ndlF-Amp
2ndlFbypass
16.368 MHz
TCXO
6-pin minimold
6-pin super minimold
(225 mil)
30-pin plastic SSOP
(300 mil)
36-pin plastic QFN
16f
REF
2ndlFin2
0
Package
16f
4f
• f
• PB1005K is in
0
0
0
= 1.023 MHz in the diagram.
16.368 MHz
4.092 MHz
Buff
Buff
PB1005K
Discontinued
Available
Available
Status
to Demodulator
to Demodulator
.
3

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