Motorola APX 2000 - Page 900

8-54 Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: VHF (84012618001)
Figure 8-26. GPS Circuit
2.8V LDO
U1305M3
R1303M3
C1301M3
C1303M3
VOUT
GND
VIN
VEN
R1305M3
C1306M3
C1319M3
C1320M3
L1301M3
26MHZ TCXO
Y1304M3
C1376M3
C1321M3
OUTPUT
VCC
GND
ENABLE_DISABLE
VDD_TCXO VPROG STATE
FLOATING = 2.87V
VDDS = 1.8V
R1340M3
R1313M3
C1310M3 C1326M3 C1327M3
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
FL1303M3
C1324M3
C1325M3
R1311M3
R1309M3
R1310M3
L1306M3
IN
GND3
OUT
GND2
GND1
EXTERNAL LNA
C1322M3
U1304M3
VSS
GND
AI
BIAS
PON
VCC
AO
L1303M3
C1307M3 C1308M3
R1302M3
C1309M3
L1304M3
C1305M3
L1302M3
C1304M3
LNA_ENABLE
R1301M3
C1317M3
L1316M3
C1315M3
C1314M3
FL1301M3
C1318M3
L1305M3
C1302M3
ANT
IN
IN
GND3
OUT
GND2 GND1
C1311M3
C1331M3 C1335M3 C1334M3
C1333M3
C1332M3
C1328M3
R1315M3
C1330M3 C1329M3
C1337M3 C1336M3
C1313M3
C1312M3
NC
U1301M3
VSS_DIG3
VSS_DIG2
GPS_EXT_LNA_EN
GPS_NSHUTDOWN
GPS_PPS_OUT
GPS_PA_EN
GPS_TIMESTAMP
GPS_I2C_UART_SEL
BT_HCI_UART_RTS
BT_HCI_UART_CTS
BT_AUD_CLK
BT_AUD_FSYNC
BT_AUD_OUT
BT_AUD_IN
VDD1P8V_1
VDD_PLL_GPS
REF_CLK_REQ
CLK_REQPOL
GPS_IRQ
BT_GPIO2
BT_GPIO3
BT_GPIO4
BT_IRQ_BT_HOST_WAKEUP
BTFM_NSHUTDOWN
BT_GPIO5
BT_HCI_UART_RX
BT_HCI_UART_TX
BT_RF
BT_TESTM
BT_TESTP
BT_TX_DBG_BT_GPIO6
BT_WAKEUP
FM_ABGAP_CAP
FM_AUD_IN_L
FM_AUD_IN_R
FM_AUD_OUT_L
FM_AUD_OUT_R
FM_I2C_SCL
FM_I2C_SDA
FM_I2S_CLK
FM_I2S_FSYNCH
FM_I2S_IN
FM_I2S_OUT_BT_GPIO1
FM_IRQ
FM_RFN_IN
FM_RFP_IN
FM_RFP_OUT
GPS_LNA_IN
GPS_SENS_I2C_SCL
GPS_SENS_I2C_SDA
GPS_TM
GPS_TP
GPS_UART_RX
GPS_UART_TX
IFORCE
PMTEST_1P8V
REF_CLK_HV
REF_CLK_LV
RTC_CLK
TCXO_CLK_LV
TCXO_CLK_REQ
TCXO_LDO_IN
TCXO_LDO_VPROG
TEST_EN
VBAT1
VDD1P8V_2
VDD1P8_BT
VDD1P8_FM
VDD1P8_GPS
VDDS1
VDDS2 VDDS3 VDDS4
VDD_CLASS1P5_BT
VDD_DCO_BT
VDD_DIG1 VDD_DIG2
VDD_DIG3
VDD_DIG4
VDD_DIG_LDO
VDD_IF_GPS
VDD_LDOIN_ CLASS1P5_BT
VDD_PPAIF_BT
VDD_RF_BT
VDD_SRAM1 VDD_SRAM2
VDD_SRAM_LDO
VDD_TCXO
VPP
VSENSE
VSS_ADCPLL_FM VSS_DCO_BT VSS_DIG1
VSS_DIG4 VSS_DIG5 VSS_DIG6
VSS_DPLL_BT VSS_LNA_GPS1
VSS_LNA_GPS2
VSS_LNA_GPS3 VSS_MIX_GPS VSS_PASYNTH_FM VSS_PLL_GPS VSS_REF_CLK
VSS_RF_BT VSS_RF_FM VSS_TCXO_CLK
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
TP1305M3
R1318M3
TP1303M3
R1317M3
32KHZ
TPEX3
LNA_ENABLE
GPS_SHUTDOWN
IN
IN
(FROM OMAP)
(FROM CPLD)
(TO OMAP UART RX)
GPS UART
(FROM OMAP UART TX)
GPS_RX
GPS_TX
IN
OUT
(TO SHARE PIN WITH 100-PIN CONNECTOR)
TP1307M3 TP1306M3 TP1308M3