參數(shù)資料
型號: TS4975
廠商: 意法半導(dǎo)體
英文描述: Stereo Headphone Drive Amplifier with Digital Volume Control via IC Bus
中文描述: 立體聲耳機驅(qū)動集成電路放大器通過總線與數(shù)字音量控制
文件頁數(shù): 29/33頁
文件大?。?/td> 747K
代理商: TS4975
TS4975
Application Information
29/33
Figure 63. Demoboard schematic
Figure 64. Bottom layer
10k
R5
Vcc1
10k
R4
Vcc1
1
6
2
7
3
8
4
9
5
CON1
RS232
GND2
DTR
TXD
GND
SDA
SDA
SCL
SCL
R1IN
R2IN
13
8
T1IN
T2IN
11
10
C1+
C1-
C2+
C2-
V+
V-
1
3
4
5
2
6
R1OUT
R2OUT
12
9
T1OUT
T2OUT
14
7
V
1
G
1
U3
ST232
Vcc2
GND2
Vcc2
GND2
Cn5
GND2
10K
R7
GND2
+
C5
1μF
+
C6
0.1μF
+
C7
0.1μF
+
C8
0.1μF
+
C9
0.1μF
GND2
Vcc2
Vcc2
Vcc2
SDA
SCL
Vcc2
SDA
Vcc1
180R
R8
GND2
360R
R6
360R
R9
Vcc1
Bias
Volume control
Select
I2C
Mode
1
6
5
4
9
10
12
13
2
G
8
V
1
TS4975
IN1
IN2
OUT1
OUT2
PHG1
PHG2
OUT1 Amplifier
OUT2 Amplifier
PHG1 Amplifier
PHG2 Amplifier
IN1
Pre-Amplifier
IN2
Pre-Amplifier
S
S
3
A
Bypass
U1
10k
R3
1
2
3
4
JP1
HEADER 4
Vcc1
1
2
3
Cn6
1k
R1
1k
R2
1
2
3
J1
PHONEJACK STEREO
1
2
3
Cn8
1
2
3
Cn7
Vcc1
Cn1
+
C1
1μF
+
C2
1μF
+
C3
220μF
+
C4
220μF
P2
IN2
P1
IN1
Cn3
Cn4
Cn2
I2C BUS
1
2
3
4
JP2
HEADER 4
1
2
16
15
U2A
KP1040
3
4
14
13
U2B
KP1040
5
6
12
11
U2C
KP1040
+
C10
330nF
+
C11
330nF
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