Figure 8-28. Mnus4000A/C/E Receiver Back End Circuit - Motorola APX 7000 Detailed Service Manual

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1/700–800 MHz
R698
0
DC_LIN_5V IN
C643 C641
470PF 33PF
MMBTA13
Q601
DC_LIN_3_0V
DC_LIN_1_875V_D
IN
DC_LIN_3V R699
0
IN
C642
470PF
DC_LIN_3_0V
C601
L601
TL_RX_IF_
.01UF
220NH
1 2 1 2
IN
C605
3.9PF
E601
1 2
DC_LIN_3_0V
C603
.01UF
E602
1 2
DC_LIN_3_0V
C604
.01UF
E603
1 2
DC_LIN_3_0V
C602
.01UF
C607
100PF
E604
1 2
DC_LIN_3_0V
C606
0.1UF
E605
1 2
DC_LIN_3_0V

Figure 8-28. MNUS4000A/C/E Receiver Back End Circuit

C629
R607
0.1UF
100K
1 2 1 2
C627
1000PF
1
R605
10K
U602
1
BFR380F
C608
C618
3PF
TP601 33PF
1 1 2 R606
TEST_POINT
10K
C609
27PF
1 2
R602 C619
62PF
390
R601
47
C617 C621 C626
0.1UF 0.1UF 1000PF
C623
.01UF
C628
.01UF
L603
L602
10UH
10UH
1 2
C615
150PF
U601
AD9864
C633
1 36
.01UF
MXOP GNDL
2 35 2 1
MXON FREF
3 34
GNDF GNDS2
1 2 4 33
IF2N SYNCB
5 32
C611
IF2P GNDH
100PF 6 31
VDDF FS
7 30
GCP DOUTB
1 2 8 29
GCN DOUTA
9 28
VDDA CLKOUT
C610
10 27
100PF GNDA VDDH
11 26
VREFP VDDD
12 25
VREFN PE
C634
0.1UF
R603
C612 100K
.01UF
C613 C616
100PF 2200PF
C632
R608
100PF
10K
1 2
C620 VR601
R604
1SV279
0.1UF 390
L605
3.9UH
C624
C622
.33UF .33UF C635
.01UF
C614
.01UF
C630
0.1UF
C625 C631
R612
18PF 15PF
7.5K
1
1 2 2
R609
2.2K
VR602 C639
L604 C638 R613
1SV279 .01UF
120NH 3300PF 2.4K
C640
0.1UF
E606
1 2
DC_LIN_3_0V
E607
1 2
DC_LIN_5_0V
C636
IN CLK_16_8_MHZ
0.1UF
R624
0
DNP
DC_LIN_3_0V
R610
100K
E609 R614
0
1 2
DC_LIN_3_0V
C637
0.1UF
E608
R615
0
1 2
DNP
DC_LIN_3_0V
R611
10K
1 2
DC_LIN_3_0V
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 6
1
DC_LIN_1_875V_D
U607
NC7SZ125
1 OE
2 A Y
4
5
NC
R617 R623
0 0
DNP
DNP
3 4
OUT DIG_DATA_SSI_RX_DOUTA
U603
R618
NC7WZ17
0
DNP
1 6
CLK_SSI_RX
OUT
U604
NC7WZ17
R619
0
DNP
U604
NC7WZ17
4
3
U605
SN74LVC2T45
DC_LIN_1_875V_D
C1 C2
NC A2 B2
B1 B2
A1 B1
IN DIG_CTRL_SPI_PE
D2
DIR
R620
DC_LIN_3_0V
DC_LIN_1_875V_D
0
DIG_DATA_SPI_PD
DNP IN
C1 C2
A2 B2
B1 B2
A1 B1
D2
DIR
U606
SN74LVC2T45
DC_LIN_1_875V_D
DC_LIN_3_0V
IN DIG_CTRL_SPI_PC
R621
0
DNP
8-49
IN
OUT
OUT DIG_RX_BE_DOUTB
NC