SAA1575HL Datasheet, PDF (40/56 Pages) NXP Semiconductors – Global Positioning System GPS baseband processor

Philips Semiconductors
Global Positioning System (GPS)
baseband processor
Product specification
SAA1575HL
handbook, full pagewidth
PL101
JMP3
D101
LL4007
U101
IN
3
ADJ
OUT
2
1
LM317T(3)
R118
270 Ω
GND
C101
1 nF
C107
1 µF
(20 V)
GND GND
C109
10 µF
(10 V)
GND
R119
820 Ω
GND
D102
LL4007
C102
1 nF
TP101
VCC
R101
1Ω
VCC
C108
22 µF
(5 V)
GND GND
C103
1 nF
D103
LL4007
U102
IN
3
OUT
ADJ
2
1
LM317T(3)
C115
1 µF
(20 V)
C116
10 µF
(10 V)
R120
240 Ω
D104
LL4007
R121
390 Ω
JP101
1
2
R122 3 V/5 V
330 Ω
C104
1 nF
TP102
VRF
R102
1Ω
VRF
C110
22 µF
(5 V)
VBAT
R117
1 kΩ
B101
3V
170 mAh
GND
VCC
C105
100 nF
BATT_OFF
VCC
R110
1 MΩ
R111
1 MΩ
R109
470 Ω
V101
BC848
C112
470 nF
V102
BC848
GND GND
GND
VCC
VBAT
R113
47 kΩ
V103
V105
BC858 BC858
R115
10 MΩ
R112
1 MΩ
C114
22 µF
(6.3 V)
GND
VDD
VBAT
R114
47 kΩ
V104
V106
BC858 BC858
R116
10 MΩ
U103
LP2951CM
IN
1 ^OUT
8
ERR
SD
5
3
SNSE
FB
2
7
VTAP
6
4
GND
R106
18 kΩ
R108
12 kΩ
C106
100 nF
TP103
VDD(IN)
R103
1Ω
VDD
C111
10 µF
(6.3 V)
C113
22 µF
(6.3 V)
GND
BATT_ON
VBB
VRTC
GND
GND
GND
GND
GND
GND
MHB294
Fig.27 Power supply circuitry.
1999 Jun 04
40