Figure 8-159.Receiver Back End Circuit - Motorola APX 1000 Detailed Service Manual

8-342
R698
DC_LIN_5_0V
DC_LIN_5V
0
IN
C643 C641
470PF 33PF
MMBTA13
Q601
DC_LIN_3_0V
DC_LIN_1_875V_D
IN
R699
DC_LIN_3V 0
IN
C642
470PF
DC_LIN_3_0V
TL_RX_IF RF_RX_BE_IF_1 RF_RX_BE_IFIN
1 2 1 2
IN
L611 L601
C601
270NH 220NH
.01UF
C644
C645
2.7PF
C605
2.7PF
3.9PF
DNP
E601
DC_RX_BE_VDDI
DC_LIN_3_0V
RF_RX_BE_MXOP
C603 RF_RX_BE_MXON
.01UF
100PF
DC_RX_BE_VDDF
E602
1
DC_LIN_3_0V
C604
DC_RX_BE_VREFP
.01UF
E603
DC_RX_BE_VDDA
DC_LIN_3_0V
C602
.01UF
C607
100PF
E604
DC_LIN_3_0V
C606
0.1UF
E605
DC_LIN_3_0V
Figure 8-159. Receiver Back End Circuit
R607
C629
100K
0.1UF
1 2 1 2
DC_RX_BE_SUPFLTR_B
1
R605
10K
RF_RX_BE_SUPFLTR_C
RF_RX_BE_VCO_B
U602
1
BFR380F
C608
C618
3PF
33PF
R606
TP601 1 1 2
TEST_POINT 10K
RF_RX_BE_VCO_E
RF_RX_BE_VCO_OUT2
C609
27PF
1 2
C619
R602
62PF
390
RF_RX_BE_VCO_OUT
R601
C626
47 C617 C621
1000PF
0.1UF
0.1UF
DC_RX_BE_VDDL
DIG_RX_BE_CXVM
RF_RX_BE_CXIF C623
RF_RX_BE_MX .01UF
C628
.01UF
DIG_RX_BE_CXVL
L602 L603
10UH 10UH
RF_RX_BE_LON
C615
150PF
1 2
DC_RX_BE_VDDP
U601
AD9864
C633
1 36
MXOP GNDL .01UF
2 35 2
MXON FREF
C611 3 34
GNDF GNDS2
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
RF_RX_BE_GCP 7 30
GCP DOUTB
2 8 29
GCN DOUTA
9 28
C610 VDDA CLKOUT
10 27 DC_RX_BE_VDDH
100PF
GNDA VDDH
11 26 DC_RX_BE_VDDD
VREFP VDDD
12 25
VREFN PE
DC_RX_BE_VDDQ
DIG_RX_BE_RREF
R603
100K
C612
.01UF DC_RX_BE_VDDC
DC_RX_BE_VREFN
CLK_RX_BE_CLKN
C616 CLK_RX_BE_CLKP
C613
2200PF
100PF RF_RX_BE_IOUT
RF_RX_BE_18D
1 2
R608 C632
10K 100PF
R604 VR601
C620 390
1SV279
0.1UF
RF_RX_BE_18T
C622 C624
.33UF
.33UF
C614
.01UF
C630
C627
0.1UF
1000PF
C646
8PF
RF_RX_BE_VCO_F RF_RX_BE_VCO_TUNE
RF_RX_BE_VCO_L
C631
7PF
1 2 1 2
C625 R609
R612
18PF 2.2K 7.5K
RF_RX_BE_VCO_D
L604 VR602 C639 R613
C638
.01UF
120NH 1SV279 2.4K
3300PF
RF_RX_BE_VCO_A
C640
0.1UF
E606
DC_LIN_3_0V
E607
DC_LIN_5_0V
C636
CLK_16_8_MHZ
IN
0.1UF
R624
0
DNP
DC_LIN_3_0V
CLK_RX_BE_FREF
1
R610
100K
R614
E609
0
DC_LIN_3_0V
E608
C634 C637
0.1UF R615
0.1UF
0 DNP
DC_LIN_3_0V
L605
3.9UH
R611
10K
1 2
DC_LIN_3_0V
C635
.01UF
Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: 900 MHz (84012478001)
DC_LIN_1_875V_D
DC_LIN_1_875V_D
U604 U603
NC7WZ17 NC7WZ17
VCC VCC
GND GND
DIG_RX_SYNCB
R616
0 DNP
DIG_DATA_SSI_RX_FS
U603
NC7WZ17
1 6
U607
NC7SZ125
1 OE
2 A Y 4
5
NC
R623
0 DNP
R617
DIG_RX_DATA
0 DNP
3 4
OUT
U603
NC7WZ17
R618
DIG_RX_CLK
0 DNP
DIG_RX_FS
1 6
OUT
U604
NC7WZ17
R619
0 DNP U604
NC7WZ17
3
DC_LIN_1_875V_D C1 B2 C2
NC A2
B1 B1 B2
A1
IN
D2
DIR
U605
SN74LVC2T45
R620 DC_LIN_3_0V
DC_LIN_1_875V_D
0
DNP
C1 C2
B2
A2
B1 B2
B1
A1
D2
DIR
U606
SN74LVC2T45
DC_LIN_1_875V_D
DC_LIN_3_0V
R621
0 DNP
IN
OUT
DC_LIN_1_875V_D
DIG_RX_BE_DOUTB
OUT
DIG_DATA_SSI_RX_DOUTA
CLK_SSI_RX
4
NC
DIG_CTRL_SPI_PE
IN DIG_DATA_SPI_PD
IN DIG_CTRL_SPI_PC