IC AMP AUDIO PWR 1.2W MONO 8MSOP

TS4990IST

Manufacturer Part NumberTS4990IST
DescriptionIC AMP AUDIO PWR 1.2W MONO 8MSOP
ManufacturerSTMicroelectronics
TypeClass AB
TS4990IST datasheet
 

Specifications of TS4990IST

Output Type1-Channel (Mono)Max Output Power X Channels @ Load1.2W x 1 @ 8 Ohm
Voltage - Supply2.2 V ~ 5.5 VFeaturesDepop, Differential Inputs, Standby, Thermal Protection
Mounting TypeSurface MountPackage / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
For Use With497-6383 - BOARD DEMO FOR TS4990Lead Free Status / RoHS StatusLead free / RoHS Compliant
Other names497-4451-2  
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Typical application schematics
2
Typical application schematics
Figure 1.
Typical application schematics
Cin
Audio In
Standby
Control
Table 3.
Component descriptions
Component
Inverting input resistor that sets the closed loop gain in conjunction with R
R
in
resistor also forms a high pass filter with C
C
Input coupling capacitor that blocks the DC voltage at the amplifier input terminal.
in
R
Feed back resistor that sets the closed loop gain in conjunction with R
feed
C
Supply bypass capacitor that provides power supply filtering.
s
C
Bypass pin capacitor that provides half supply filtering.
b
Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off
C
feed
frequency 1/ (2 x Pi x R
A
Closed loop gain in BTL configuration = 2 x (R
V
DFN8 exposed pad is electrically connected to pin 7. See
Exposed pad
information on page 28
4/32
Rfeed
Cfeed
Vcc
Rin
Vin-
-
Vin+
+
Bypass
Standby
Bias
Cb
Functional description
x C
)).
feed
feed
for more information.
TS4990
Cs
Vout 1
Speaker
8 Ohms
-
Vout 2
AV = -1
+
TS4990
feed
(F
= 1 / (2 x Pi x R
x C
)).
in
c
in
in
.
in
/ R
).
feed
in
DFN8 package
. This