TS4990EIJT STMicroelectronics, TS4990EIJT Datasheet - Page 23

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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TS4990
Note:
Figure 64. Differential input amplifier configuration
The input capacitor C
frequency required. (F
This formula is true only if:
is 5 times lower than F
Example bill of materials
The bill of materials in
and a -3 dB lower cut-off frequency of about 80 Hz.
Table 7.
Neg. Input
Pos. Input
Pin name
C
b
F
C
U1
R
R
=C
Bill of materials for differential input amplifier application
CB
in
Standby
Control
1
2
Cin
Cin
s
=
----------------------------------------
2π R
R1
R1
(
in
L
L
Table 7
R2
Cb
1
can be calculated by the following formula using the -3 dB lower
.
is the lower frequency required).
+
1
R
2
)C
is for the example of a differential amplifier with a gain of 2
B
Vin-
Vin+
Bypass
Standby
R2
C
(Hz)
in
-
+
-------------------- -
2πR
Bias
1
1
F
L
Functional description
Vcc
(F)
20k / 1%
20k / 1%
TS4990
100nF
1µF
-
+
AV = -1
Application information
TS4990
Vout 1
Vout 2
Speaker
8 Ohms
23/32
Cs

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