DEMOTS4956J STMicroelectronics, DEMOTS4956J Datasheet - Page 49

• Manufacturer Part Number: DEMOTS4956J
• Description: BOARD DEMO TS4956EIJT/EIKJT
• Manufacturer: STMicroelectronics

Specifications of DEMOTS4956J

• Amplifier Type: Class AB
• Output Type: 1-Channel (Mono) with Mono and Stereo Headphones
• Max Output Power X Channels @ Load: 1W x 1 @ 8 Ohm; 43mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: TS4956
• Description/function: Audio Amplifiers
• Operating Supply Voltage: 2.7 V to 5.5 V
• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TS4956
• Other names: 497-6381; DEMOTS4956J

TS4956
4.11
Demonstration board
A demonstration board for the TS4956 is available.
For more information about this demonstration board, refer to the application note AN2465,
which you can find on www.st.com.
Figure 131. Demonstration board schematic for the TS4956
J1
DB9
JP1
JP2
JP3
Diff. input +
Diff. input -
SE input left
SE input right
4
3
2
1
1
2
1
2
5
9
4
8
3
7
2
6
1
I2C SUPPLY
GND
DTR
TXD
RTS
DSR
R1
Cin1
330nF
Cin2
330nF
Cin3
330nF
Cin4
330nF
2k2
16
15
+
+
+
+
1A
KP1040
Cn1
GND2
I2CVCC
R2
1K
R3
1K
7
5
4
3
MIP
MIN
LIN
RIN
TS4956
D1
D2
1N4148
1N4148
Vcc
BYPASS
I2CVCC
1
2
Input Right
Input Right
Input Left
Input Left
3
2
1
Stereo
Stereo
Stereo
Stereo
C1
1µF
Bias
R4
180R
GND2
GND2
Cn5
3
4
5
6
1B
KP1040
1C
KP1040
I2CVCC
Cn2
SDA
T1
BS170
I2CVCC
Cn3
Vcc
TS4956 POWER SUPPLY
Select
Mode
I2C
SCL
14
13
12
11
Cn4
SCL
LHP Amplifier
PHG Amplifier
RHP Amplifier
Speaker Amplifier
MLO Amplifier
SDA
SDA
Digital volume
Cs1
1µF
control
I2CVCC I2CVCC
SRP+
SRN-
PHG
RHP
MLO
LHP
Cs2
100nF
SCL
R5
10K
SDA
R6
10K
1
2
15
6
10
16
Application information
R7
1K
C2
+
220µF
JP6
I2C BUS
1
2
3
JP4
JP5
1
2
1
2
PHONEJACK STEREO
1
2
3
J2
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