Figure 9.3-17.Pmle4427A/ Pmle4427B Rx Schematic - Motorola ASTRO XTS 2500 Service Manual

9.3-18
RX_OSC
DAC_2
THIS PART MUST BE REPLACED WITH LP2981AIM%x-5.0 D
RESET_OUT
ABACUS_CS
SPI_CLK
16.8Mhz_OSC
Figure 9.3-17. PMLE4427A/ PMLE4427B RX Schematic
August 16, 2007
RX_FRONTEND
RX_RF
RX_RF
XCVR_5V
RX_OSC
DAC_2 ANA_3V
DAC_3
DAC_3
POR
POR
SW_B+ SW_B+
RESET_OUT
VSW1 VSW1 ABACUS_3V
MOSI
RX_BACKEND
PE
IF PC
PD
XCVR_5V
FREF
DIG_3V
ANA_5V XCVR_5V
ANA_3V
ANA_3V
ABACUS_3V
UHF2 Schematics, Board Overlays, and Parts Lists
DOUTB
DOUTA Data_hi
CLKOUT Abacus_CLK
FS Abacus_FSYNC
SyncB
Abacus_SYNCB
IF
6816985H01-B