TS4997IQT STMicroelectronics, TS4997IQT Datasheet - Page 3

• Manufacturer Part Number: TS4997IQT
• Description: IC AMP AUDIO 1W STER AB 16QFN
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS4997IQT

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 1W x 2 @ 8 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, Depop, Differential Inputs, Standby, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5995-2

TS4997
1
Typical application schematics
Figure 1
resistors.
Figure 1.
Table 1.
Components
Diff. input L-
Diff. input L+
Diff. input R-
Diff. input R+
shows a typical application for the TS4997 with a gain of +6dB set by the input
R
C
C
C
P1
P2
P3
P4
IN
IN
S
B
Typical application schematics
External component descriptions
Optional
Cin1
330nF
Cin2
330nF
Cin3
330nF
Cin4
330nF
Input resistors that set the closed loop gain in conjunction with a fixed internal
feedback resistor (Gain = R
Input coupling capacitors that block the DC voltage at the amplifier input
terminal. Thanks to common mode feedback, these input capacitors are
optional. However, if they are added, they form with R
filter with -3dB cut-off frequency (f
Supply bypass capacitors that provides power supply filtering.
Bypass pin capacitor that provides half supply filtering.
Rin1
24k
Rin2
24k
Rin3
24k
Rin4
24k
1uF
Cb
14
1
2
4
3
TS4997 - QFN16
LI N-
LI N+
RIN-
RIN+
Bypass
RIGHT
LEFT
GND
BIAS
GND
Functional description
feed
EFFECT
3D
/R
IN
cut-off
, where R
= 1 / (2 x π x R
Typical application schematics
STBY
-
+
-
+
VCC
Vcc
feed
= 50kΩ).
LOUT-
LOUT+
ROUT-
ROUT+
IN
Cs
1uF
IN
a 1st order high pass
x C
12
11
9
10
IN
)).
Left Speaker
Right Speaker
8 Ohms
8 Ohms
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