TS421IST STMicroelectronics, TS421IST Datasheet - Page 29
TS421IST
Manufacturer Part Number
TS421IST
Description
IC AMP AUDIO PWR .367W AB 8MSOP
Manufacturer
STMicroelectronics
Type
Class ABr
Datasheet
1.TS419IDT.pdf
(32 pages)
Specifications of TS421IST
Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
367mW x 1 @ 16 Ohm
Voltage - Supply
2 V ~ 5.5 V
Features
Differential Inputs, Short-Circuit Protection, Standby
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4449-2
Fig. 98 : Differential Input Amplifier
Configuration
Input capacitance C can be calculated by the
following formula using the -3dB lower frequency
required. (F
L
is the lower frequency required)
C
2
R
1
1
F
L
(
F
)
Note : This formula is true only if:
is ten times lower than F
The following bill of material is an example of a
differential amplifier with a gain of 2 and a -3dB
lower cuttoff frequency of about 80Hz.
Components :
R1
R2
C
C
U1
B
=C
S
Designator
F
CB
942000
L
1
.
TS419/21
20k / 1%
20k / 1%
100nF
1µF
C
B
Part Type
TS419-TS421
(
Hz
)
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