DEMOTS4956J STMicroelectronics, DEMOTS4956J Datasheet - Page 5

• 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
2
Typical application schematic
Table 4.
Figure 1.
C
C
C
C
R
Components
s1
b
in1
out
1
, C
to C
Diff. input +
Diff. input -
SE input left
SE input right
s2
in4
Description of external components
Typical application for the TS4956 (modes 1, 2, 3, 4, 5 and 6)
Cin1
330nF
Cin2
330nF
Cin3
330nF
Cin4
330nF
Supply bypass capacitors which provide power supply filtering.
Bypass capacitor which provides half-supply filtering.
Input capacitors which form together with input impedance Z
filter to block DC voltage on inputs
Output capacitor which forms with output load R
half-supply voltage on single-ended output.
Resistor to keep
+
+
+
+
A1
A2
B4
A5
MIP
MIN
LIN
RIN
TS4956
BYPASS
Input Right
Input Right
Cb
1µF
C
Input Left
Input Left
Stereo
Stereo
Stereo
Stereo
out
Bias
charged for better pop performance on single-ended output.
I2C BUS
I2CVCC
SCL
SDA
I2CVCC
Functional description
Vcc
Select
Mode
I2C
LHP Amplifier
PHG Amplifier
RHP Amplifier
Speaker Amplifier
MLO Amplifier
Digital volume
Cs1
1µF
control
L
Typical application schematic
first-order high pass filter to block
SRP+
SRN-
MLO
PHG
RHP
LHP
Cs2
100nF
B6
A7
D6
B2
D2
E7
in
Cout
220µF
first-order high pass
MODE3: Gx(MIP+MIN)
MODE4: GxLIN
MODE3: Gx(MIP+MIN)
MODE4: GxRIN
MODE1: Gx(MIP+MIN)
MODE2: Gx(LIN+RIN)
MODE5: Gx(MIP+MIN)
MODE6: Gx(LIN + RIN)
+
R1
1k
16/32 Ohms
16/32 Ohms
8 Ohms
16/32 Ohms
5/55