LM4890MM/HALF National Semiconductor, LM4890MM/HALF Datasheet - Page 12

• Manufacturer Part Number: LM4890MM/HALF
• Manufacturer: National Semiconductor

Specifications of LM4890MM/HALF

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono
• Output Power (typ): 1x1@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.1@8Ohm@400mW%
• 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: 66dB
• Single Supply Voltage (min): 2.2V
• 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
• Lead Free Status / Rohs Status: Compliant

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Typical Performance Characteristics
V
LM4890 vs LM4877 Power Supply Rejection Ratio
DD
Next Trace Down = 2µf, Bottom Trace = 4.7µf
Top Trace = No Cap, Next Trace Down = 1µf
= 5V, Input Grounded = 10Ω, Output Load = 8Ω
Power Supply Rejection Ration vs
Output Load = 8Ω, 200mV Ripple
V
DD
PSRR Distribution V
= 5V, Input Grounded = 10Ω
LM4890 = Bottom Trace
Bypass Capacitor Size
LM4877 = Top Trace
-30, +25, and +80˚C
217Hz, 200mvp-p,
DD
= 5V
200192A7
20019288
200192B4
12
(Continued)
V
LM4890 vs LM4877 Power Supply Rejection Ratio
DD
Next Trace Down = 2µf, Bottom Trace = 4.7µf
Top Trace = No Cap, Next Trace Down = 1µf
= 3V, Input Grounded = 10Ω, Output Load = 8Ω
Power Supply Rejection Ration vs
Output Load = 8Ω, 200mV Ripple
V
DD
PSRR Distribution V
= 3V, Input Grounded = 10Ω
LM4890 = Bottom Trace
Bypass Capacitor Size
LM4877 = Top Trace
-30, +25, and +80˚C
217Hz, 200mvp-p,
DD
= 3V
200192A8
20019289
200192B5