LM4873MTE/NOPB National Semiconductor, LM4873MTE/NOPB Datasheet - Page 12

• Manufacturer Part Number: LM4873MTE/NOPB
• Description: IC AMP AUDIO PWR 3W STER 20TSSOP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4873MTE/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 3W x 2 @ 3 Ohm; 440mW x 2 @ 8 Ohm
• Voltage - Supply: 2 V ~ 5.5 V
• Features: Depop, Input Multiplexer, Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM4873MTE; *LM4873MTE/NOPB; LM4873MTE

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Typical Performance Characteristics
External Components Description
(Refer to Figure 1.)
Components
1.
2.
3.
4.
5.
C
C
R
R
C
B
s
i
i
f
The inverting input resistance, along with R
filter with f
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
highpass filter with f
COMPONENTS, for an explanation of determining the value of C
The feedback resistance, along with R
The supply bypass capacitor. Refer to the POWER SUPPLY BYPASSING section for information about
properly placing, and selecting the value of, this capacitor.
The capacitor, C
PROPER EXTERNAL COMPONENTS section for information concerning proper placement and selecting
C
B
Frequency Response
’s value.
Channel Separation
Open Loop
c
= 1/(2πR
B
, filters the half-supply voltage present on the BYPASS pin. Refer to the SELECTING
c
i
C
= 1/(2πR
i
).
10099320
10099322
i
C
i
). Refer to the section, SELECTING PROPER EXTERNAL
i,
set the closed-loop gain.
Functional Description
f
, set the closed-loop gain. R
12
(Continued)
i
.
Supply Current vs
Rejection Ratio
Supply Voltage
Power Supply
i
, along with C
i
, along with R
i
, form a high pass
10099323
10099321
i
, create a