LM4857GR National Semiconductor, LM4857GR Datasheet - Page 23

• Manufacturer Part Number: LM4857GR
• Description: IC AUDIO SUBSYSTEM W/3D 49UBGA
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4857GR

• Output Type: 2-Channel (Stereo) with Mono and 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
• Features: 3D, Depop, I²C, Mute, Shutdown, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 49-Micro-array
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LM4857GRTR

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)
23
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
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