Circuit Diagrams and PWB Layouts
10.
10-3-4
B04 Demodulator (DTMB DVB-C, PAL)
19340_503_120716.eps
120815
Demodulator (DTMB DVB-C, PAL)
B04
B04
2012-02-17
A
715G5279
Demodulator
(DTMB DVB-C, PAL)
C1437
NC/5PF 50V
VDD
33
A
S
IC_
3
V
3
VDD12
VDD_DIV
IVINP
TSSYNC
TESTIO20
C1438
NC/5PF 50V
SDAS
TS1
TS3
DIF from Demodulator
VDD
33
TS4
TS5
TS2
TS6
TS7
TSCLK
TSVALID
TUNER INPUT
TE
S
TIO20
TS3
T2D_TIF-
1
2
4
3
X1401
30.4MHz
TS1
Demodulator I2C
TS2
VDD12
TU_OSCL
TU_OSDA
TS0
TEST LED
TUNER AGC
DEMODULATOR RESET
VDD12
VDD
33
VDD33
VDD12
A
S
IC_
3
V
3
TS4
SDAS
IVINN
TESTIO21
SCLM
TS5
SDAM
SDAM
PWM0
TS6
TESTIO23
R1402
56K 1%
R1414
0R05 1/16W
T2D_TIF-
1
2
FB1401
120R/3000mA
C1434
100N16V
C1428
10PF 50V
C1402
1UF16V
C1412
100N16V
R1401
1M 1/16W
R1417
10K +-1% 1/16W
TS7
R1407
100K 1/16W 5%
R1406
100K 1/16W 5%
C1417
100N16V
C1415
100N16V
R1419
4.7K 1%
R1431
0R05 1/16W
D_TSSYNC
D_TSVALID
DEMOD_RST
D_TSCLK
D_TSDATA0
TS6
R1416
10K +-1% 1/16W
C1418
100N16V
D_TSSYNC
D_TSVALID
R1415
0R05 1/16W
1
2
FB1402
120R/3000mA
D_TSDATA0
TS5
TS4
C1420
100N16V
C1409
100N16V
C1403
100N16V
TS3
Serial TS TO 8295
TS2
R1410
100K 1/16W 5%
C1407
100N16V
TS1
TS0
C1433
100N16V
R1413
2.7K 1/16W 1%
SCLM
Parallel TS
C1422
100N16V
R1405
100K 1/16W 5%
TS7
R1408
100K 1/16W 5%
C1416
100N16V
R1412
2.7K 1/16W 1%
R1403
100K 1/16W 5%
1
2
FB1403
120R/3000mA
DEMOD_RST
C1430
1UF16V
R1409
100K 1/16W 5%
C1413
100N16V
C1406
1UF16V
R1430
0R05 1/16W
R1404
100K 1/16W 5%
R1418
4.7K 1%
C1411
100N16V
C1404
1UF16V
C1427
1UF16V
VDD33
C1405
100N16V
C1421
100N16V
R1420
10K 1/16W 5%
TESTIO23
C1410
100N16V
C1414
100N16V
ASIC_3V3
R1421
0R05 1/16W
VDD33
V3.3
V1.2
V3.3
SDAT_DEMOD
VDD33
V3.3
V3.3
DEMOD_RST
8
D_TSSYNC
8
D_TSVALID
8
D_TSCLK
8
D_TSDATA0
8
R1426
33R 1/16W 5%
T2D_TIF-
6
6
IF_AGC_D2T
6
C1401
NC/22uF 10V
C1429
10PF 50V
TSVALID
TS0
TSCLK
TSSYNC
TP4351
IVINP
TEST POINT
C1435
5PF 50V
D_TSCLK
TE
S
TIO21
L1401
2.2uH
R1427
33R 1/16W 5%
56k~59k 5%
R1428
33R 1/16W 5%
DTMB_RESETN
R1429
33R 1/16W 5%
TESTIO24
C1436
5PF 50V
C1408
NC/22uF 10V
TESTIO25
TESTIO24
REFCLK0
TESTIO25
TESTIO26
TESTIO27
C1423
100N16V
SCLS
ASIC_3V3
C1424
100N16V
C1439
NC/22uF 10V
C1440
NC/22uF 10V
TS0
C1425
100N16V
C1432
100N16V
R1425
10K 1/16W 5%
R1424
200R 1/16W 5%
PWM0
C1426
100N16V
C1431
100N16V
IF_AGC_D2T
Close To (U101)
TUNER I2C
IVINN
SCLT_DEMOD
SDAT_DEMOD
SDAT_DEMOD 6
I2C for
DEMODULATOR
(RESERVE)
SCLT_DEMOD 6
SCLT_DEMOD
DTMB_RE
S
ETN
TESTIO26
1
2
LD1401
NC/LED
R1423
NC/330R 1/16W 5%
TESTIO21
LOCK
TU_OSDA
TU_OSCL
TU_OSCL
6,18
TU_OSDA 6,18
I2C for DEMODULATOR
TESTIO27
TSBSYNC
1
TSBVLD
2
TSBCLK
3
TSB7
4
TSB6
5
VDD33
6
TSB5
7
TSB4
8
TSB3
9
VDD12
10
TSB2
11
TSB1
12
TSB0
13
PWM0
14
VDD12
15
CLK_REF_OUT
16
VDD_DIV
17
REFCLKI0
18
REFCLKI1
19
VDD_O
S
C
20
D
VDD_ADC
21
AD
VDD_ADC
22
QVINP
2
3
QVINN
24
IVINP
25
IVINN
26
A
VDD_REF
27
REF_BIA
S
_EXT
2
8
VDD12
29
NC
3
0
PWM1
3
1
NC
3
2
NC
33
NC
3
4
NC
3
5
NC
3
6
NC
37
I2CINT
38
SCLM
39
SDAM
40
VDD12
41
SCLS
42
SDAS
43
DBGBUS17
44
VDD33
45
DBGBUS16
46
DBGBUS15
47
NC
48
NC
49
NC
50
VDD33
51
VDD12
52
DBGBUS14
53
DBGBUS13
54
NC
5
8
VDD12
57
NC
55
NC
56
VDD
33
59
NC
60
DBGB
U
S
12
61
DBGB
U
S
11
62
NC
6
3
DBGB
U
S
10
64
VDD
33
65
NC
66
NC
67
VDD12
6
8
RE
S
ETN
69
TE
S
T0
71
TE
S
T1
72
DBG
S
EL
70
GND
7
3
U101
ATBM8846E
VDD
33
VDD33
A
S
IC_
3
V
3
VDD
33
TE
S
TIO22
VDD12
SCLS
VDD
33
IF_AGC_D2T
VDD12
VDD33
VDD
33
VDD12
VDD12
TESTIO22