User Guide
Schematic Diagrams
CODEC (71-L27T0-002) B - 25
B.Schematic Diagrams
CODEC
Sheet 24 of 29
CODEC
CLINE-IN-L
CA100
0.1u
R538
56K
R153 1K
AC_RESET#15
Z2434
R435
10K_R
C132 0.22u_R
MIC2 25
CBIT_CLK
Z2449
C139 0.01u
+5V
CLINE-OUT-L
AC_SDOUT
C306
1u_R
C248 18p
R426 33
L33 LF BK2125HM121
PHONE
AC_RESET#
Z2441
R437
1K
R156 0_R
R439 0
C267
1u_R
T77
AC_SDIN215
Z2416
R166
0_R
VIDEO-L 16
If 14.318M External CLK is used
Z2423
TZ2406
Z2432
CMIC-IN
Z2435
AC_SDIN1 15
C304
1u
CA245
0.1u
C131 0.22u_R
R176
10K
Z2418
CN23
RJ-11
1
2
XP
XN
PIN(NC3,NC4,NC5,NC6,NC7,NC8)=GND
+12V
RT1
R2010_R
Y4
24.576MHz
R511 33
CA126
0.1u
Z2446
T75
L34 LF BK2125HM121
CA268
0.1u
R193
0
T78
C117
0.01u_R
LINE_IN-R 25
MONO_OUT19
CAUX-R
CLINE-OUT-R
Z2448
CA239
0.1u
CA146
0.1u
+3V
Z2409
Z2450
CA123
0.1u
R595 100
PHONE19
+5V 4,11..14,16,17,19,21..23,25..29ALC650 4
Z2428
C229
0.022u
CB5 1u
Q43
2N3904
B
E C
AGND
R154 0_R
R425 33
C118
1u_R
CLINE-IN-R
Z2431
R516 33
CB11 2.2u_0805
R427 0_R
CB10
1u_0805
R428 33
SB3V
R194 1K
CB15 2.2u_0805
HPHONE-L 25
AC_SYNC
C305
1u
C261
0.01u
MONO_OUT
Z2401
CAUX-L
LINE_IN-L 25
+A5V
R182 10K
Z2402
Z2430
C266 0.22u
Z2436
CF10
4.7u/16V_1206
AC_SDOUT15
Z2440
Z2437
R174 33
C113 680p_R
Z2438
CLINE-OUT-R
SB3V 14..16,19,20,22,23,26
Z2425
T81
CA276
0.1u_R
CA134
0.1u
Z2433
C258 0.01u
R626 0
C111 680p_R
HPHONE-R 25
TZ2402
CN33
MODEM CON.
1
2
3
+3V
CVIDEO-R
TZ2407
CP40
10p
CA125
0.1u
C109
680p_R
C263 0.22u_R
CP43
10p
CB3 1u
+2.25VREF 25
CMIC2
AGND
C268 0.47u
Near CODEC
CVIDEO-R
Z2412
R544
1K
SPKROUT#17
R429 33
T76
Z2421
C252
1000p_R
AGND
AGND
MODEM
Z2424
Z2427
CA140
0.1u
+3V
PC_BEEP
CT67
10u/10V_1206
AGND
+12V 12,13,16,17,22,25..28
Z2408
PHONE
C108
0.22u
USB7+ 13,15
Z2415
T83
CP5
10p
MDC ( SOFEWARE MODEM )
Z2444
C269 0.47u
CB4 1u
AUDIO-R 21
CN8
MDC CON.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29 30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
MONO_OUT
GND
AUXR
AUXL
CDGND
CD_R
CD_L
GND
3.3V
GND
3.3V
SDATA_O
RESET#
GND
MCLK BCLK
GND
SDATA_INA
SDATA_INB
SYNC
GND
VCC
P_DN
R_D
R_D
VCC
GND
R_D
MONO_PHONE
AUDIO_PD
C257
2200p
CP42
10p
Z2447
C259
0.01u
Z2422
CMIC2
U24C
74HC32
9
10
8
147
ICHSPK14USB7- 13,15
Z2405
R477 0_0805_R
Z2411
Z2426
Z2445
R539
56K
AGND
C262 0.047u_R
R627 0
CD-GND 21
AGND
R152
220K
L48 BEAD BK2125HS601 600ohm_0805_R
T79
+5V
Z2417
C265 0.01u
U42
UTC78L05_R
1
2
3
OUTPUT
GND
INPUT
R180
1K
CLINE-IN-R
CF9
4.7u/16V_1206
R438 10K_R
R172 0_R
+3V
Z2439
C247 18p
TZ2408
AGND
CF11
4.7u/16V_0805
SB3V
Z2406
S1
SHORT_1A
21
CBIT_CLK
MIC-IN 25
+A5V
U33
ALC202
9
7
1
4
25
26
38
42
12
24
23
21
22
20
18
19
17
16
15
14
13
37
36
35
29
30
31
32
28
27
2
3
11
5
8
10
6
46
45
47
39
40
33
34
48
41
43
44
DVDD2
DVSS2
DVDD1
DVSS1
AVDD1
AVSS1
AVDD2
AVSS2
PC_BEEP
LINE_IN_R
LINE_IN_L
MIC1
MIC2
CD_R
CD_L
CD_GND_REF
VIDEO_R
VIDEO_L
AUX_R
AUX_L
PHONE
MONO_OUT
LINE_OUT_R
LINE_OUT_L
AFILT1
AFILT2
CAP1/VRAD
CAP2/VRDA
VREFOUT
VREF
XTAL_IN
XTAL_OUT
RESET#
SDATA_OUT
SDATA_IN
SYNC
BIT_CLK
ID1#
ID0#
EAPD
HP_OUT_L
HP_OUT_C/NC
CAP3/CAP1
CAP4/NC
SPDIFO
HP_OUT_R
JD/SDIN1/GPIO0
TEST1/GPIO1
AGND
Z2420
CMIC-IN
CAUX-L
Z2443
Z2442
VIDEO-R 16
+12V
PC_BEEP
TZ2403
+2.25VREF
Z2403
CVIDEO-L
TZ2404
CB2
1u
AC_SYNC15
Z2419
CA127
0.1u
CA270 0.1u
CB13
1u
AUDIO-L 21
AGND
C120
27p
AGND
CVIDEO-L
C256
1000p_R
MONO_OUT
C307
1u_R
BIT_CLK15
AC_SDIN0 15
R179 0
R195 1K
C264 0.01u
U29
LM78L05
1
2
3
8
5
6
7
4
V_out
GND
GND
V_in
NC
GND
GND
NC
R503
1M
R167 33
Z2404
R540 1K
CAUX-R
R160
0_R
R596 100
Z2407
Z2410
Z2414
TZ2401
R190
10K
Z2413
Z2429
CLINE-IN-L
CB12 2.2u_0805
C260
0.01u
MUTE22
CA138
0.1u
+A5V 25
CLINE-OUT-L
TZ2405
C112 0(0603)
R476 0_0805
+3V 3..6,11..17,19..23,26..29