TS4990EIJT STMicroelectronics, TS4990EIJT Datasheet - Page 4

IC AMP AUDIO PWR 1.2W 9FLIPCHIP

TS4990EIJT

Manufacturer Part Number
TS4990EIJT
Description
IC AMP AUDIO PWR 1.2W 9FLIPCHIP
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet

Specifications of TS4990EIJT

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
1.2W x 1 @ 8 Ohm
Voltage - Supply
2.2 V ~ 5.5 V
Features
Depop, Differential Inputs, Standby, Thermal Protection
Mounting Type
Surface Mount
Package / Case
9-FlipChip
For Use With
497-6383 - BOARD DEMO FOR TS4990
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Typical application schematics
2
4/32
Typical application schematics
Figure 1.
Table 3.
Exposed pad
Component
R
C
R
C
Audio In
C
C
A
feed
feed
in
in
V
b
s
Standby
Control
Typical application schematics
Component descriptions
Cin
Inverting input resistor that sets the closed loop gain in conjunction with R
resistor also forms a high pass filter with C
Input coupling capacitor that blocks the DC voltage at the amplifier input terminal.
Feed back resistor that sets the closed loop gain in conjunction with R
Supply bypass capacitor that provides power supply filtering.
Bypass pin capacitor that provides half supply filtering.
Low pass filter capacitor allowing to cut the high frequency (low pass filter cut-off
frequency 1/ (2 x Pi x R
Closed loop gain in BTL configuration = 2 x (R
DFN8 exposed pad is electrically connected to pin 7. See
information on page 28
Rin
Cb
Vin-
Vin+
Bypass
Standby
Rfeed
Cfeed
-
+
feed
for more information.
Bias
x C
Functional description
feed
Vcc
)).
in
-
+
AV = -1
(F
feed
c
= 1 / (2 x Pi x R
/ R
in
).
TS4990
Vout 1
Vout 2
DFN8 package
in
x C
in
Speaker
8 Ohms
in
)).
.
Cs
feed
TS4990
. This

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