Figure 8-9. Receiver Back End - Motorola APX 3000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Main Board Block: UHF1 (84012513001_A)
DC_LIN_5_0V
DC_LIN_5V R698M19
0
IN
C643M19 C641M19
470PF 33PF
MMBTA13
Q601M19
DC_LIN_3_0V
DC_LIN_1_875V_D
IN
DC_LIN_3V
R699M19
0
IN
C642M19
470PF
DC_LIN_3_0V
L611M19 L601M19
RF_RX_BE_IF_1 RF_RX_BE_IFIN
TL_RX_IF
270NH 220NH
1 2 1 2
IN
C601M19
.01UF
C644M19 C645M19 C605M19
2.7PF 2.7PF 6.8PF
DNP
E601M19
DC_RX_BE_VDDI
DC_LIN_3_0V
C603M19
.01UF
DC_RX_BE_VDDF
E602M19
DC_LIN_3_0V
C604M19
.01UF
E603M19
DC_RX_BE_VDDA
DC_LIN_3_0V
C602M19
.01UF
C607M19
100PF
E604M19
DC_LIN_3_0V
E605M19
DC_LIN_3_0V
C629M19
R607M19
100K 0.1UF
1 2
1 2
DC_RX_BE_SUPFLTR_B
1
R605M19
10K
RF_RX_BE_SUPFLTR_C RF_RX_BE_VCO_B
1
U602M19
BFR380F
C608M19
C618M19
3PF
33PF
TP601M19 1 1 2
R606M19
TEST_POINT
10K
RF_RX_BE_VCO_E
RF_RX_BE_VCO_OUT2
C609M19
27PF
1 2
R602M19 C619M19
390
62PF
RF_RX_BE_VCO_OUT
R601M19
47
C626M19
C617M19 C621M19
1000PF
0.1UF
0.1UF
DC_RX_BE_VDDL
DIG_RX_BE_CXVM
RF_RX_BE_CXIF
RF_RX_BE_MX
C623M19
C628M19
.01UF
DIG_RX_BE_CXVL .01UF
L602M19 L603M19
10UH 10UH
RF_RX_BE_LON
C615M19
150PF
1 2
DC_RX_BE_VDDP
U601M19 AD9864
RF_RX_BE_MXOP
1 36
MXOP GNDL
RF_RX_BE_MXON 2 35 2
MXON FREF
C611M19
3 34
GNDF GNDS2
100PF
1 2 RF_RX_BE_IF2N 4 33 DIG_RX_BE_SYNCB
IF2N SYNCB
RF_RX_BE_IF2P 5 32
IF2P GNDH
6 31
VDDF FS
C610M19
RF_RX_BE_GCP 7 30
100PF GCP DOUTB
1 2 8 29
GCN DOUTA
9 28
VDDA CLKOUT
10 27 DC_RX_BE_VDDH
GNDA VDDH
DC_RX_BE_VREFP
11 26 DC_RX_BE_VDDD
VREFP VDDD
12 25
VREFN PE
C634M19
0.1UF
DC_RX_BE_VDDQ
DIG_RX_BE_RREF
R603M19
100K
C612M19
.01UF DC_RX_BE_VDDC
DC_RX_BE_VREFN
CLK_RX_BE_CLKN
CLK_RX_BE_CLKP
C613M19
RF_RX_BE_IOUT
100PF
C632M19
RF_RX_BE_18D
100PF
1 2
R608M19
10K
VR601M19
R604M19
1SV279
390
RF_RX_BE_18T
C606M19
0.1UF
C624M19
C622M19
.33UF .33UF
C614M19
.01UF
C627M19 C630M19
1000PF 0.1UF
C646M19
8PF
RF_RX_BE_VCO_L
R612M19
RF_RX_BE_VCO_F
C631M19 7.5K
8PF 1 2 1 2 RF_RX_BE_VCO_TUNE
C625M19 R609M19
18PF 2.2K
RF_RX_BE_VCO_D
L604M19
R613M19
VR602M19 C638M19
120NH 2.4K
1SV279 3300PF C639M19
.01UF
RF_RX_BE_VCO_A
C640M19
0.1UF
E606M19
TP603M19
DC_LIN_3_0V
TEST_POINT
E607M19
DC_LIN_5_0V
C636M19 IN CLK_16_8_MHZ
0.1UF
R624M19
0
DNP
DC_LIN_3_0V
1 CLK_RX_BE_FREF
C633M19
R610M19
.01UF
100K
E609M19
R614M19
0
DC_LIN_3_0V
C637M19
0.1UF E608M19
R615M19
0 DNP
DC_LIN_1_875V_D
DC_LIN_3_0V
L605M19
3.9UH
R611M19
10K
1 2
DC_LIN_3_0V
C635M19
.01UF
DC_LIN_1_875V_D
DC_LIN_1_875V_D
U604M19 U603M19
NC7WZ17 NC7WZ17
VCC VCC
GND GND
DIG_RX_SYNCB
R616M19
0 DNP
DIG_DATA_SSI_RX_FS
U603M19
NC7WZ17
1 6
DC_LIN_1_875V_D
U607M19
NC7SZ125
1 OE
2 A Y 4
5
NC
R623M19
0 DNP
DIG_RX_DATA R617M19
0 DNP
3 4
OUT DIG_DATA_SSI_RX_DOUTA
U603M19
NC7WZ17
R618M19
DIG_RX_CLK
0 DNP
DIG_RX_FS
1 6
OUT CLK_SSI_RX
U604M19
NC7WZ17
R619M19
0 DNP
U604M19
NC7WZ17
3 4
C1 A2 C2
NC B2
B1 A1 B2
B1 IN DIG_CTRL_SPI_PE
D2 DIR
U605M19
SN74LVC2T45
DC_LIN_3_0V
R620M19 DC_LIN_1_875V_D
0
DNP
C1 C2
A2
B2
B1 B2
A1
B1
D2
DIR
U606M19
SN74LVC2T45
DC_LIN_1_875V_D
DC_LIN_3_0V
IN DIG_CTRL_SPI_PC
R621M19
0 DNP
8-11
IN
OUT
OUT DIG_RX_BE_DOUTB
NC
IN DIG_DATA_SPI_PD

Figure 8-9. Receiver Back End