LM4890IBL National Semiconductor, LM4890IBL Datasheet - Page 6

• Manufacturer Part Number: LM4890IBL
• Description: IC AMP AUDIO PWR 1W MONO 9USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4890IBL

• 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: Contains lead / RoHS non-compliant
• Other names: LM4890IBLTR

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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
.