Motorola APX 7000 Detailed Service Manual page 610

8-334
VSW_3.6
U2220
LP3991
B2 VIN
A2
VEN
C2201
1UF
2.8V LDO
(NATIONAL LP3991TLX-2.8)
R2203
10
B2 VIN
A2 VEN
GND
C2204
10UF
1.2V LDO
(NATIONAL LP3991TLX-1.2)
TP2201
1
TEST_POINT
TPSM1_01
32KHZ
IN
GPS_2.8V
TP2202
1
TEST_POINT
TPSM1_01
GPS_RESET
IN
ANTENNA SHUNT
TP2203
TEST_POINT
1
Figure 8-147. MHLN6977A/B GPS Circuit
GPS_2.8V
GPS_1.8V
U2270
LP5900
B2
B1 A1 VEN
VOUT
A2 VIN
GND
A1 C2260 B1 C2275
4.7UF 1UF
1.8V LDO
(NATIONAL LP5900TLX-1.8)
GPS_1.2V
U2284
LP3991
B1
SIRF SPECS:
A1 C2285
4.7UF
1.2V CORE: ~90MA
1.8V RF: ~20MA
1.8V IO: ~ 2MA
DEDICATED GPS DC SUPPLIES
R2216
0
26MHZ TCXO
L2214
18NH
1 2
Y2204
C2217
KT2520Y26000
.01UF
26MHZ C2238
C2215 C2219
.01UF
12PF VCC
1UF
4
OUT
NC1 2
NC
5
NC2
NC
GND2
R2247
1.74K
C2246 C2248
560PF 4700PF
R2202
0
DC BIAS FOR GPS LNA ADDED TO RF BOARD
(LNA_ENABLE = 1.8V)
GPS_LNA_PON
ANTENNA CONTACT
TP2204
SNGL-ENDED SAW
TEST_POINT
(FUJITSU L4AA) (1575.42MHZ)
R2204
1
1K
FL2205
FARF6KA1G5754
1 IN 4
C2220
R2205 5.6PF
0
L2201
GPS_ANT
4.7NH
IN
C2202
6.8PF
RF MATCH
(FOR NEW GPS ARCHITECTURE THRU ALL 3 BOARDS)
GPS_1.8V
FLTRD_GPS_1.8V_IO
R2295
0
C2272 C2281
1UF 12PF
C2277
C2286 C2287
.01UF
100PF .01UF
GPS_1.2V FLTRD_GPS_1.2V_CORE
R2294
0
C2273 C2203
C2278 12PF
1UF
.01UF
GPS_1.8V FLTRD_GPS_1.8V_RF
1 2
L2264
18NH
C2274 C2282
1UF C2279 12PF
.01UF
MCLK_EXT
F5 MOD_MCLK
D1
LOW_REF_CLKI
D4
REF_CLK_IN
J4
TCK
L5
NTRST GPS
A1
NC LNA_IN
B6
VTUNE SIRF GSCI-5001 (ROM 1.3)
C1
NRESET
D6 U2206
TEST
E3
NC IF_TEST_P
E4
NC IF_TEST_N
R2255 F4
TMS
G1
100K FDIN
J1
STAND_ALONE ADC_EXT_0
J7
ADC_EXT_1
MOD_ARM
K5
TDI ADC_EXT_2
ADC_EXT_3
NPCS_RXD1
MOSI_RXD0
GPS_2.8V
L2219
18NH
C2212 C2214
1000PF 12PF
C2267
18PF
U2217
BGA615L7
C2208 5
12PF VCC
1
AI
6
2 AO
BIAS
4
L2213 PON L2268
L2209
100NH 3.3NH
3.3NH C2262 C2271
DNP
GPS_LNA_PON .5PF .5PF
DNP DNP
C2210
C2216
.01UF 12PF
EXTERNAL LNA
(INFINEON BGA615L7)
Schematics, Boards Overlays, and Parts Lists: Expansion Boards
DIFFERENTIAL SAW
LOW_
(SAWTEK 856576) (1575.42 MHZ)
REF_
F1
NC
CLKO K2
NC FL2207
H7
NC 856576
SCK_TXD1
4
LNA_OUT A3 OUTPOS
NC
A5 1
RFA_INP IN
3
B5
RFA_INM OUTNEG
H1
FDOUT GPS_LNA_PON
J5
NC
TDO GND2 GND1
(LNA_ENABLE = 1.8V)
C7
NC1
D7
NC2
E7 FLTRD_GPS_1.8V_IO
NC3
J2
NC4
L1
NC5
L2
NC6
L3
NC7 R2201
L6
NC8
L7 100K
NC9
F2
EXT_NIRG
F3
NC
H3
NC
J3
NC
K3
NC
H6
J6 TP2205
MISO_TXD0 1
H2 TEST_POINT
NC
ONE_PPS K6
TPSM1_01
R2291
MISO_TXD0 0 OUT
GPS_TX__TO__OMAP_UART_RX
R2292
MOSI_RXD0 0
IN GPS_RX__FROM__OMAP_UART_TX
TP2206
1
TEST_POINT
TPSM1_01