LM4857SP/NOPB National Semiconductor, LM4857SP/NOPB Datasheet - Page 16

• Manufacturer Part Number: LM4857SP/NOPB
• Description: IC AUDIO SUBSYSTEM W/3D AB 28LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4857SP/NOPB

• 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: 28-LLP
• Operational Class: Class-AB
• Input Offset Voltage: 40@5VmV
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Supply Current (max): 21@5VmA
• Power Supply Requirement: Dual
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 86dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.5/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• For Use With: LM4857SPBD - BOARD EVALUATION LM4857SP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4857SP; LM4857SPTR

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Typical Performance Characteristics
Top-Mode 12, 13; Mid-Mode 2, 3; Bot-Mode 7, 8
Mode 1; 0dB Gain; Top-CD4 = 1; Bot-CD4 = 0
V
DD
V
DD
= 5V; LLS, RLS; R
All audio inputs terminated
= 5V; EP; f = 1kHz; R
THD+N vs Output Power
PSRR vs Frequency
L
= 8Ω; 0db Gain;
L
= 32Ω;
20079724
20079726
(Note 11) (Continued)
16
Top-Mode 12, 13; Mid-Mode 2, 3; Bot-Mode 7, 8
V
DD
= 3V; LLS, RLS; R
R
All audio inputs terminated
L
THD+N vs Output Power
V
= 32Ω; Mode 1; 0dB Gain
DD
PSRR vs Frequency
= 3V; EP; f = 1kHz;
L
= 8Ω; 0db Gain;
20079725
20079727