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Motorola APX 2000 Detailed Service Manual

Motorola APX 2000
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8-112 Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012313002 / PC000353A01)
Figure 8-45. Receiver Back End Circuit
21
C624
2
1
C622
.33UF
.33UF
C641
C642
C643
R698
R699
23
1
Q601
21
C629
21
R607
DC_LIN_3_0V
MMBTA13
100K
DC_RX_BE_SUPFLTR_B
RF_RX_BE_SUPFLTR_C
33PF
0.1UF
DC_LIN_3_0V
DC_LIN_5_0V
0
470PF
0
DC_LIN_5V
470PF
DC_LIN_3V
DC_LIN_1_875V_D
IN
IN
IN
C646
1
TP601
2
3
1
U602
21
C609
21
C608
21
R605
21
C630
2
1
R613
21
C640
2
1
C639
21
R612
21
R609
21
VR602
2
1
L604
2
1
R606
2
1
C638
21
C627
C631
C625
2
1
C618
21
C619
21
R602
RF_RX_BE_VCO_E
3300PF
1SV279
120NH
10K
18PF
RF_RX_BE_VCO_D
7PF
33PF
RF_RX_BE_VCO_OUT
10K
0.1UF
62PF
2.2K
390
3PF
27PF
TEST_POINT
RF_RX_BE_VCO_B
RF_RX_BE_VCO_OUT2
0.1UF
7.5K
2.4K
RF_RX_BE_VCO_TUNE
1000PF
RF_RX_BE_VCO_A
.01UF
BFR380F
RF_RX_BE_VCO_F
RF_RX_BE_VCO_L
8PF
21
E605
21
E604
21
E603
21
E602
21
E601
21
C616
21
C606
21
C614
21
C613
2
1
C612
2
1
C602
2
1
C603
2
1
C607
100PF
DC_LIN_3_0V
DC_LIN_3_0V
2200PF
.01UF
DC_RX_BE_VDDA
DC_LIN_3_0V
DC_LIN_3_0V
.01UF
DC_RX_BE_VREFN
.01UF
100PF
.01UF
DC_LIN_3_0V
0.1UF
DC_RX_BE_VDDI
C645
L611
C644
L603
L602
21
R601
21
C601
C605
21
L601
2
1
C621
21
C617
21
C615
2.7PF
DNP
2.7PF
0.1UF
3.9PF
220NH
RF_RX_BE_IF_1
.01UF
270NH
RF_RX_BE_MX
DIG_RX_BE_CXVL
RF_RX_BE_CXIF
0.1UF
47
10UH
150PF
10UH
TL_RX_IF
RF_RX_BE_IFIN
IN
21
C626
21
C628
21
C623
DIG_RX_BE_CXVM
.01UF
RF_RX_BE_LON
1000PF
DC_RX_BE_VDDL
.01UF
21
E607
21
E606
1
C636
DC_LIN_3_0V
0.1UF
CLK_16_8_MHZ
DC_LIN_5_0V
IN
R624
R610
DIG_RX_FS
0
100K
DC_LIN_3_0V
DNP
NC
Y
GND VCC
A
OE
4
6
1
5
3
2
U607
R616
61
U603
DIG_DATA_SSI_RX_FS
DC_LIN_1_875V_D
0
NC7WZ17
NC7SZ125
DIG_RX_SYNCB
DNP
IN
OUT
R623
R618
R617
43
U603
0
DIG_DATA_SSI_RX_DOUTA
NC7WZ17
0
DNP
DNP
DIG_RX_BE_DOUTB
DNP
0
DIG_RX_DATA
DIG_RX_CLK
OUT
OUT
NC
R619
43
U604
61
U604
CLK_SSI_RX
0
NC7WZ17
DNP
NC7WZ17
OUT
DIG_CTRL_SPI_PE
DIG_DATA_SPI_PD
DIG_CTRL_SPI_PC
DC_LIN_1_875V_D
IN
IN
IN
A1
A2
VCCA
VCCB
GND
B1
B2
DIR
A1
A2
VCCA
VCCB
GND
DIR
NC
D1
A2
A1
D1
D2
C2
B2
C1
B1
U605
DC_LIN_3_0V
SN74LVC2T45
D2
C1
B1
U606
SN74LVC2T45
DC_LIN_3_0V
B1
B2
R621
A2
A1
C2
B2
DNP
DC_LIN_1_875V_D
0
R620
0DNP
R615
R614
0
0
DNP
DC_LIN_3_0V
DC_LIN_1_875V_D
21
E608
21
E609
21
C637
21
C634
DC_LIN_3_0V
0.1UF
0.1UF
L605
21
R611
21
C635
3.9UH
10K
DC_LIN_3_0V
.01UF
2
1
R604
21
R608
21
C620
RF_RX_BE_18T
RF_RX_BE_18D
390
0.1UF
10K
C632
21
VR601
CLK_RX_BE_CLKN
CLK_RX_BE_CLKP
100PF
1SV279
RF_RX_BE_IOUT
21
R603
14
17
13
24
23
15
21
16
22
18
G1
19
20
DC_RX_BE_VDDC
DIG_RX_BE_RREF
100K
DC_RX_BE_VDDQ
CXVL
LOP
LON
CXVM
VDDL
VDDP
IOUTL
GNDP
RREF
VDDQ
IOUTC
GNDQ
VDDC
GNDC
CLKP
CLKN
GNDS1
GNDD
PC
PD
GNDL
FREF
GNDS2
SYNCB
GNDH
FS
DOUTB
DOUTA
CLKOUT
VDDH
VDDD
PE
MXOP
MXON
GNDF
IF2N
IF2P
VDDF
GCP
GCN
VDDA
GNDA
VREFP
VREFN
VDDI
IFIN
CXIF
GNDI
GND3
39
40
48
27
26
33
25
43
42
38
47
34
37
36
45
32
31
35
30
29
41
44
46
28
U601
DC_RX_BE_VDDP
AD9864
21
C604
21
C610
21
C611
11
12
6
9
1
2
5
4
3
10
7
8
.01UF
100PF
DC_RX_BE_VREFP
DC_RX_BE_VDDF
100PF
RF_RX_BE_IF2P
RF_RX_BE_GCP
RF_RX_BE_IF2N
RF_RX_BE_MXON
RF_RX_BE_MXOP
21
C633
.01UF
DC_RX_BE_VDDH
DC_RX_BE_VDDD
DIG_RX_BE_SYNCB
CLK_RX_BE_FREF
VCC
GND
VCC
GND
52
U603
52
U604
NC7WZ17
DC_LIN_1_875V_D
NC7WZ17
DC_LIN_1_875V_D

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Motorola APX 2000 Specifications

General IconGeneral
BrandMotorola
ModelAPX 2000
CategoryTwo-Way Radio
LanguageEnglish

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