Figure 9-7. Uhf Transceiver (Rf) Receiver Back End Circuit - Motorola ASTRO XTSTM 4000 Detailed Service Manual

9-8

Figure 9-7. UHF Transceiver (RF) Receiver Back End Circuit

May 28, 2008
Q551
73A04
V47
C562
C561
.01uF
4.7uF
2313960B30 2113945B02
BFQ67W
V5A V3DF
4805218N63
V5A
V3D
C560
18pF
E501
2113944A28
BLM11A601S
V3DF
R501
C547
L571 0
.01uF
0.82uH
2113945B02
2414017Q46
RXIF
C584
7.5pF
2115153H24
L501
10uH
C581
220pF
V3DF
C548
.047uF
C505 C501
100pF 100pF
V3DF
C506
0.10uF
C507
2200pF
V3DF
C513
.01uF
C509
C511
.047uF
100pF
V3DF
V3DF
V5A
C583
R552
.01uF
56K
R553 IFLO
10K
71.1 to 75.6MHz
R554
10K
R555 D551
0613952R01
180 1SV305
0613952H55 TP551
4815096H01
TEST_POINT
C555
C554 L551
6.2pF
16pF
4.7uH
2113944A20 2113944A79
2414032B76
Q550
D550
C556
L552
56pF 1SV305
330nH
C553
2113944A34
2414015B26 4815096H01
0.33uF
2113946C07
R556
330
0613952Q61
C557
C552
56pF
1.0uF
2113944A34
2113946S35
L553
2.2uH
2414017Q51
IOUTL
LOP V3DF
C546 C544 C542 C541
.01uF .01uF .01uF .01uF C540
0.10uF
lon 16V
cxvl cxvm
cxif vddl
ifin vddp
vddi V3DF
C539
.047uF
10V
2113946B02
C535
1 36
.01uF
MXOP GNDL
2 35
MXON FREF
3 34
GNDF GNDS2
4 33
IF2N SYNCB
5 32
IF2P GNDH
6 31
VDDF FS
7 U500 30
GCP DOUTB NC
AD9864
8 29
GCN DOUTA
9 28
VDDA CLKOUT
10 27
GNDA VDDH
11 26
VREFP VDDD
12 25
VREFN PE
C527
0.10uF
C512
R511
100pF
100K
IOUTC
CLKN
R572
C573
10K
68pF
C514
D570
0.10uF L570
V3DF 1SV279
3.9uH
CLKP
R519
10K
C574
C582
.01uF
0.10uF
Schematics, Board Overlays, and Parts Lists – UHF: Transceiver (RF) Section
R551
1.1K
0613952Q74
C551
1.0uF
2113946S35
V5A
E500
BK1005HM471
R533
100K
FREF
FS
DOUTA
CLKOUT
V3DF
PE
PD
PC
C572
R571
.033uF
1.8K
CKO
18 MHz
C570 C571
0.1uF 0.1uF
6871620L01-C