LM4857GR National Semiconductor, LM4857GR Datasheet - Page 22

• 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

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Typical Performance Characteristics
Power Dissipation vs Output Power
LHP, RHP; R
LINEOUT; R
Top-V
Frequency vs Response
Mode 10; Full Gain
DD
per channel
= 5V; Bot-V
L
L
= 32Ω; THD+N ≤ 1%
= 5kΩ; C
DD
O
= 2.2µF
= 3V
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(Note 11) (Continued)
22
Power Dissipation vs Output Power
Power Dissipation vs Output Power
LLS, RLS; R
Top-V
Top-V
EP; R
DD
DD
L
= 32Ω; THD+N ≤ 1%
per channel
= 5V; Bot-V
= 5V; Bot-V
L
= 8Ω; THD+N ≤ 1%
DD
DD
= 3V
= 3V
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