TS421IDT STMicroelectronics, TS421IDT Datasheet - Page 29

• Manufacturer Part Number: TS421IDT
• Description: IC AMP AUDIO .367W MONO AB 8SOIC
• Manufacturer: STMicroelectronics
• Type: Class ABr

Specifications of TS421IDT

• 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-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-4066-2

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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