LM4857SPBD National Semiconductor, LM4857SPBD Datasheet - Page 22

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LM4857SPBD

Manufacturer Part Number
LM4857SPBD
Description
BOARD EVALUATION LM4857SP
Manufacturer
National Semiconductor
Series
Boomer®r
Datasheets

Specifications of LM4857SPBD

Amplifier Type
Class AB
Output Type
2-Channel (Stereo) with Stereo Headphones
Max Output Power X Channels @ Load
1.6W x 2 @ 4 Ohm; 75mW x 2 @ 32 Ohm
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
LM4857
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
www.national.com
Top-V
Top-V
Typical Performance Characteristics
Botmid-V
Botmid-V
DD
DD
= 5V, 10% THD+N; Topmid-V
= 5V, 10% THD+N; Topmid-V
DD
DD
Output Power vs Load Resistance
Output Power vs Load Resistance
= 3V, 10% THD+N; Bot-V
= 3V, 10% THD+N; Bot-V
EP; R
LLS, RLS; R
L
= 32Ω; CD4 = 0
L
= 8Ω;
DD
DD
DD
DD
= 5V, 1% THD+N;
= 5V, 1% THD+N;
= 3V, 1% THD+N
= 3V, 1% THD+N
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(Note 11) (Continued)
22
Top-V
Top-V
Botmid-V
Botmid-V
DD
DD
= 5V, 10% THD+N; Topmid-V
= 5V, 10% THD+N; Topmid-V
DD
DD
Output Power vs Load Resistance
Output Power vs Load Resistance
= 3V, 10% THD+N; Bot-V
= 3V, 10% THD+N; Bot-V
EP; R
LHP, RHP; R
L
= 32Ω; CD4 = 1
L
= 32Ω;
DD
DD
DD
DD
= 5V, 1% THD+N;
= 5V, 1% THD+N;
= 3V, 1% THD+N
= 3V, 1% THD+N
20079749
20079751

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