LM4670SD National Semiconductor, LM4670SD Datasheet - Page 7

• Manufacturer Part Number: LM4670SD
• Description: IC,Audio Amplifier,SINGLE,LLCC,8PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM4670SD

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 3x1@4OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.35@8Ohm@1W%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 68dB
• Single Supply Voltage (min): 2.4V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: LLP EP
• Amplifier Class: AB
• No. Of Channels: 1
• Output Power: 3W
• Supply Voltage Range: 2.4V To 5.5V
• Thd + N: 0.35% @ 1W, VDD=5V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Not Compliant

Typical Performance Characteristics
R
L
= 15µH + 4Ω + 15µH, f = 1kHz, THD
V
V
Efficiency and Power Dissipation
DD
CM
= 3.6V, R
= 1V
THD+N vs Output Power
R
L
CMRR vs Frequency
f = 1kHz, 22kHz BW
= 15µH + 4Ω + 15µH
vs Output Power
P-P
Sine Wave, 22kHz BW
L
= 15µH + 8Ω + 15µH
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R
L
V
= 15µH + 8Ω + 15µH, f = 1kHz, THD
CM
V
Efficiency and Power Dissipation
DD
= 200mV
= 3.6V, R
THD+N vs Output Power
R
L
PSRR vs Frequency
f = 1kHz, 22kHz BW
= 15µH + 8Ω + 15µH
vs Output Power
P-P
L
Sine Wave, 22kHz BW
= 15µH + 8Ω + 15µH
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