LM4857SP/NOPB National Semiconductor, LM4857SP/NOPB Datasheet - Page 24

• 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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Application Information
EC - externally configured by ADR pin
Mono Volume control
Left Volume control
Right Volume control
Mode control
Chip Address
ADR = 0
ADR = 1
A7
1
1
1
A6
1
1
1
D7
0
0
1
1
FIGURE 3. I
TABLE 2. Control Registers
FIGURE 2. I
A5
1
1
1
D6
TABLE 1. Chip Address
0
1
0
1
2
C Timing Diagram
RD5
CD5
LD5
2
D5
24
C Bus Format
0
A4
1
1
1
MD4
RD4
CD4
LD4
D4
A3
1
1
1
MD3
RD3
CD3
LD3
D3
A2
0
0
0
MD2
RD2
CD2
LD2
D2
EC
A1
0
1
MD1
RD1
CD1
LD1
D1
200797F4
200797F5
A0
MD0
RD0
CD0
LD0
0
0
0
D0