LM4857GR National Semiconductor, LM4857GR Datasheet - Page 17

• 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

Typical Performance Characteristics
(Note 11) (Continued)
THD+N vs Output Power
THD+N vs Output Power
20079724
20079725
V
= 5V; EP; f = 1kHz; R
= 32Ω;
V
= 3V; EP; f = 1kHz;
DD
L
DD
Mode 1; 0dB Gain; Top-CD4 = 1; Bot-CD4 = 0
R
= 32Ω; Mode 1; 0dB Gain
L
PSRR vs Frequency
PSRR vs Frequency
20079726
20079727
V
= 5V; LLS, RLS; R
= 8Ω; 0db Gain;
V
= 3V; LLS, RLS; R
= 8Ω; 0db Gain;
DD
L
DD
L
All audio inputs terminated
All audio inputs terminated
Top-Mode 12, 13; Mid-Mode 2, 3; Bot-Mode 7, 8
Top-Mode 12, 13; Mid-Mode 2, 3; Bot-Mode 7, 8
17
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