Features: OCL or capacitively coupled outputs (patent pending)V External gain-setting capability Available in space-saving MSOP package Ultra low current shutdown mode Mute mode allows fast turn-on (1ms) with less than 1mV change on outputs2V - 5.5V operation Ultra low noiseApplicationPortable CD...
LM4911: Features: OCL or capacitively coupled outputs (patent pending)V External gain-setting capability Available in space-saving MSOP package Ultra low current shutdown mode Mute mode allows fast turn-on...
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Power@ 16Ohms, 1% THD | 0.145 Watt |
Power@ 32Ohms, 1% THD | 0.085 Watt |
Power@ 16Ohms, 10% THD | 0.15 Watt |
Power@ 32Ohms, 10% THD | 0.11 Watt |
PSRR | 65 dB |
SNR | 110 dB |
Channels | 2 Channels |
PSRR Conditions | f=1 kHz |
SNR Conditions | Po=.048W |
User Supply | 5 Volt |
Shutdown Type | Low (Mute) |
Supply Range | +2.0 - +5.5 V |
Exposed DAP | Yes |
Capless Headphone | Yes |
Temperature Min | -40 deg C |
Temperature Max | 85 deg C |
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The LM4911 is an stereo audio power amplifier capable of delivering 40mW per channel of continuous average power into a 16Ω load or 25mW per channel into a 32Ω load at 1% THD+N from a 3V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4911 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. In addition, the LM4911 may be configured for either single-ended capacitively coupled outputs or for OCL outputs (patent pending).
The LM4911 features a low-power consumption shutdown mode and a power mute mode that allows for faster turn on time with less than 1mV voltage change at outputs on release. Additionally, the LM4911 features an internal thermal shutdown protection mechanism.
The LM4911 is unity gain stable and may be configured with external gain-setting resistors.
Reliability Metrics
Part Number | Process | EFR Reject | EFR Sample Size | PPM | LTA Rejects | LTA Device Hours | FITS | MTTF (Hours) |
LM4911LD | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104 |
LM4911LDX | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104 |
LM4911MM | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104 |
LM4911MMX | CMOS7 | 0 | 16561 | 0 | 0 | 954000 | 4 | 270700104 |