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Circuit Diagrams and PWB Layouts
10-7-8
DEMODULATOR_CXD2838
DEMODULATOR_CXD2838
B08
U401H
B8
CI_D0
D13
CI_D1
A12
F9
CI_MCLKO
CI_D2
C10
E17
CI_MOVAL
CI_D3
D11
E19
CI_MOSTRT
CI_D4
E11
D20
CI_MDO0
CI_D5
E7
D18
CI_MDO1
CI_D6
E8
B20
CI_MDO2
CI_D7
E16
CI_MDO3
E20
D9
CI_MDO4
CI_A0
D19
C9
CI_MDO5
CI_A1
C20
F10
CI_MDO6
CI_A2
C19
A10
CI_MDO7
CI_A3
D10
CI_A4
DEMOD_TSCLK
D14
E10
CI_MCLKI
CI_A5
DEMOD_TSVAL
B13
B12
CI_MIVAL
CI_A6
DEMOD_TSSYNC
D16
D12
CI_MISTRT
CI_A7
DEMOD_TSDATA0
A16
C16
CI_MDI0
CI_A8
C15
C17
CI_MDI1
CI_A9
C14
A19
CI_MDI2
CI_A10
C13
B18
CI_MDI3
CI_A11
A13
E9
CI_MDI4
CI_A12
E12
B16
CI_MDI5
CI_A13
F12
A15
CI_MDI6
CI_A14
E13
CI_MDI7
C18
CI_OE#
F18
B15
CI_PWR_EN
CI_WE#
A18
CI_IORD#
D17
CI_IOWR#
C12
CI_RESET
F11
CI_IREQ#
C11
CI_WAIT#
B10
CI_REG#
B19
CI_CE1#
F7
CI_CD2#
E18
CI_CD1#
MT5561LVNT
CXD2828AD+
CXD2828AD-
TUNER
SIDE
TUNER_SDA
TUNER_SCL
IFAGC_demod
TUNER_SCL
11
TUNER_SCL
TUNER_SDA
11
TUNER_SDA
IFAGC_demod
11
IFAGC_demod
CXD2828AD+
11
CXD2828AD+
CXD2828AD-
11
CXD2828AD-
OSCL1
OSCL1
OSDA1
GPIO Interface
DEMOD_RST
10
DEMOD_RST
TPM14.1L LA
10.
DVDD3V3
C181
100N 16V
C182
22PF 50V
R177
47R 1/16W 5%
R178
47R 1/16W 5%
R179
47R 1/16W 5%
R180
47R 1/16W 5%
C183
22PF 50V
R171
0R05 1/10W
CXD2838
DVDD3V3
R197
C1086
0R05 1/10W
100N 16V
C188
100N 16V
CXD2838
CVDD
10mil
R185
10K 1/16W 5%
C189
R188
47nF 16V
22K 1/16W 5%
CXD2838:356G0575048045000Z
9,11
OSDA1
9,11
EN 93
DVDD3V3
20~25mil
C190
100N 16V
1UF 25V
Vout=0.8*(1+(1.8/4.7))=1.106V
Not optimised yet
X101
1
3
C178
41.0MHz
C179
18pF 50V
R172
0R05 1/16W
18pF 50V
R173
470R 1/16W 5%
CXD2840 Add C1085
R1038 R1039
CVDD
CVDD
C180
R174
100N 16V
0R05 1/10W
C1085
100N 16V
R1039
R1038
10mil
NC/0R05 1/10W
NC/0R05 1/10W
U101
37
TAINP
TESTIN
38
TAINM
TESTOUT
39
AVSS
CVDD2
40
TESTMODE
SDA
41
NC
SCL
42
AVDD
DVDD2
43
VSS3
VSS2
44
CVDD4
TSDATA7
45
TTUSDA
TSDATA6
46
TTUSCL
TSDATA5
47
GPIO1
TSDATA4
48
TIFAGC
TSDATA3
49
E-Pad
CXD2838ER
C194
C177
100N 16V
100N 16V
10mil
10mil
CVDD
DVDD3V3
back to
2014-Mar-07
div.table
CXD2838 &CXD2837 Mount R187 R190 1.1V
CXD2840 Mount R198 R199 1.2V
U102
4
5
R186
VPP
NC
3
6
VIN
VO
2
7
0R05 1/10W
VEN
ADJ
R189
1
8
POK
GND
C191
9
10K 1/16W 5%
E-Pad
C192
10UF 10V
G9661
R1
R2
R190
CXD2838
4.7K
CXD2837
061G04024701FF
(1.1V)
CXD2840
3K
(1.2V)
061G04023001FY
The RST_X should be held
low after the power
TP1227
supplies have
R176
stabilized.
100R 1/16W 1%
DEMOD_RST
C196
8/12
R175
100N 16V
10K 1/16W 5%
RST_X
Description
0
Assert Hardware Reset
1
Negate Hardware Reset
24
23
C184
100N 16V
22
CVDD
10mil
21
R183
47R 1/16W 5%
20
R184
47R 1/16W 5%
19
10mil
DVDD3V3
C185
18
100N 16V
C186
C187
17
22PF 50V
22PF 50V
16
15
14
13
C195
10PF 50V
R191
22R 1/16W 5%
DEMOD_TSDATA0
R192
22R 1/16W 5%
DEMOD_TSCLK
R193
22R 1/16W 5%
DEMOD_TSVAL
R194
22R 1/16W 5%
DEMOD_TSSY NC
DEMODULATOR_CXD2838
B08
CVDD
20mil
C193
100N 16V
(R2)
R187
(R1)
1.8K
061G04021801FY
1.5K
061G04021501FY
OSDA1
OSCL1
3
2013-10-21
715G6325
19620_537_140121.eps
140121
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