Table of Contents
Advertisement
D1.8V
CK5
Q104
(1)
R111
5.6K
C121
R110
47uF
15k
C109
6.3v100u
(2)
(3)
(4)
Beep Signal
RX-AF (Speaker phone)
MIC BIAS
RX-AF
(Handset)
(5)
(6)
R409
330
(7)
(8)
C416
NC
(9)
AG
(10)
(11)
AG
C412
NC
(12)
(13)
6.3V KB 22u
(14)
6.3V KB 22u
(15)
(16)
(17)
(18)
(19)
(20)
13
PTST2
14
ILE
15
CS
16
RD
17
WR
18
IC301
D7/TST0
19
D6/TST0
20
D5/ERQ
21
D4/SRQ
22
D3/ARQ
23
D2/SCLK
24
DGND
R309
10k
(21)
(22)
(23)
D2.7V
CK6
Q105
C110
6.3v100u
R112
F20K
R113
F10K
AG RF_GND
Melody
Melody (LVL 5.6)
R403
0
C403
NC
R407
CN402
22
2
NC
C414
1
D401
NC
C411
100p
D402
R423
C421
47k
C428
R410
R411
C420
1k
NC
100
K0.1u
AG
C422
C419
NC
10p
TX-AF
AG
C460
ESD Suppressor
C424
R418
C425
C426
NC
RX-AF (Handset)
RINGING/CHARGING
R301
4.7K(B),10K(B-E)
120
Q301
R302
D2.7V
CHARGE COMPLETE
Q302
4.7K(B),10K(B-E)
RST
48
C303
PTSTINT2
47
TEST1
46
Z0.1
DGND
45
DVD0
44
PWM3
43
PWM2
42
PWM1
41
PWM0
40
PANEL
39
DrvGND
38
VIB
37
D2.7V
R311
NC
R310
Q303
10k
IC303
C306
1
8
1A
VCC
2
7
3Y
1Y
3
6
Z0.1
2A
3A
4
5
C307
2Y
GND
Z0.1
R312
1M
R313
680R
X101
Handset Detect
R421
C451
12k
K0.1
C401
R401
K0.1
120k
R402
C402 K0.1
15k
C404
R404
K0.1
15k
D2.7V
C432
R424
Z0.1
100K
Q401
C408
C409
J47p
7p
R412
33
MIC (1JM)
CN403_1
C429
+
10p
R417
CN403_2
33
-
D2.7V
D301
D2.7V
RED
R315
D302
100k
47
GREEN
Q304
4.7K
BATT
L301
C308
Z0.1
BATT
CN301
1
D304
VIBRATOR
2
R308
NC
12
CK12
KX-TCA256X: SCHEMATIC DIAGRAM (HANDSET)
47
IC401 ON/OFF Signal
BATT
C405
K 390p
82k
R405
C430
10p
C406
C433
IC401
Z0.1
10p
1
8
SUSPEND
2
OUT2
7
BIAS
3
GND
6
+IN
R408
4
VCC
5
-IN
OUT1
0
C410
C434
10p
10p
1
5
4
3
2
L103
HEADSET_JACK
120
C427
R427
C461
NC
NC
ESD Suppressor
AG
AG
R303
10
R318
NC
5.0V
C310
IC302
Z1u
CK7
1
C+ 6
Vout
2
GND
Vin 5
C311
3
/Dwn
C- 4
C312
PUMP
2.2u
1000p
C309
2.2u
D305
R319
82
D306
R306
82
KX-TCA256X
CN401
2
1
SPEAKER
CN404
D2.7V
D308
D309
R314
D310
10
D311
D312
D313
D314
D316
Advertisement
Table of Contents
