LM4890ITL/NOPB National Semiconductor, LM4890ITL/NOPB Datasheet - Page 6
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LM4890ITL/NOPB
Manufacturer Part Number
LM4890ITL/NOPB
Description
IC AMP AUDIO PWR 1W MONO 9USMD
Manufacturer
National Semiconductor
Series
Boomer®r
Type
Class ABr
Datasheet
1.LM4890MXNOPB.pdf
(30 pages)
Specifications of LM4890ITL/NOPB
Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
1W x 1 @ 8 Ohm
Voltage - Supply
2.2 V ~ 5.5 V
Features
Depop, Shutdown, Thermal Protection
Mounting Type
Surface Mount
Package / Case
9-MicroSMD
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM4890ITL
LM4890ITLTR
LM4890ITLTR
www.national.com
External Components Description
Components
1.
2.
3.
4.
5.
C
BYPASS
R
C
C
R
IN
IN
S
f
Inverting input resistance which sets the closed-loop gain in conjunction with R
high pass filter with C
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
Components, for an explanation of how to determine the value of C
Feedback resistance which sets the closed-loop gain in conjunction with R
Supply bypass capacitor which provides power supply filtering. Refer to the section, Power Supply
Bypassing, for information concerning proper placement and selection of the supply bypass capacitor,
C
Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of External
Components, for information concerning proper placement and selection of C
BYPASS
.
IN
IN
at f
at f
c
C
= 1/(2π R
= 1/(2π R
IN
IN
C
C
(Figure 1)
IN
IN
). Refer to the section, Proper Selection of External
Functional Description
).
6
IN
.
IN
.
BYPASS
f
. This resistor also forms a
.