LM4923 Series
1.1-W, mono, fully differential analog input Class-AB audio amplifier
Manufacturer: Texas Instruments
Link to Manufacturer Page: https://www.ti.com/
Catalog
1.1-W, mono, fully differential analog input Class-AB audio amplifier
| Part | Features | Supplier Device Package | Mounting Type | Type | Operating Temperature [Max] | Operating Temperature [Min] | Max Output Power x Channels @ Load | Max Output Power x Channels @ Load [custom] | Output Type | Package / Case | Voltage - Supply [Min] | Voltage - Supply [Max] | Package / Case | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments LM4923LQX/NOPB | Depop, Differential Inputs, Shutdown, Thermal Protection | 8-WQFN (2x2) | Surface Mount | Class AB | 85 °C | -40 °C | 1.1 W | 1 | 1-Channel (Mono) | 8-WQFN Exposed Pad | 2.4 V | 5.5 V | ||
Texas Instruments LM4923LQ/NOPB | Depop, Differential Inputs, Shutdown, Thermal Protection | 8-WQFN (2x2) | Surface Mount | Class AB | 85 °C | -40 °C | 1.1 W | 1 | 1-Channel (Mono) | 8-WQFN Exposed Pad | 2.4 V | 5.5 V | ||
Texas Instruments LM4923MMX/NOPB | Depop, Differential Inputs, Shutdown, Thermal Protection | Surface Mount | Class AB | 85 °C | -40 °C | 1.1 W | 1 | 1-Channel (Mono) | 8-MSOP, 8-TSSOP | 2.4 V | 5.5 V | 0.118 in | 3 mm | |
Texas Instruments LM4923MM/NOPB | Depop, Differential Inputs, Shutdown, Thermal Protection | Surface Mount | Class AB | 85 °C | -40 °C | 1.1 W | 1 | 1-Channel (Mono) | 8-MSOP, 8-TSSOP | 2.4 V | 5.5 V | 0.118 in | 3 mm |
Key Features
• Fully Differential AmplificationAvailable in Space-saving WQFN PackageUltra Low Current Shutdown ModeCan Drive Capacitive Loads up to 100pFImproved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions2.4 - 5.5V OperationNo Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors RequiredKey SpecificationsImproved PSRR at 217Hz 85dB(typ)Power Output at 5.0V @ 1% THD+N 1.1W(typ)Power Output at 3.3V @ 1% THD+N 400mW(typ)Shutdown Current 0.1μA(typ)All trademarks are the property of their respective owners.Fully Differential AmplificationAvailable in Space-saving WQFN PackageUltra Low Current Shutdown ModeCan Drive Capacitive Loads up to 100pFImproved Pop & Click Circuitry Eliminates Noises During Turn-on and Turn-off Transitions2.4 - 5.5V OperationNo Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors RequiredKey SpecificationsImproved PSRR at 217Hz 85dB(typ)Power Output at 5.0V @ 1% THD+N 1.1W(typ)Power Output at 3.3V @ 1% THD+N 400mW(typ)Shutdown Current 0.1μA(typ)All trademarks are the property of their respective owners.
Description
AI
The LM4923 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDCpower supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4923 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
The LM4923 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown protection mechanism.
The LM4923 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.
The LM4923 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDCpower supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4923 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
The LM4923 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by logic low. Additionally, the LM4923 features an internal thermal shutdown protection mechanism.
The LM4923 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions.