LM49153 Series

1.35-W, stereo, analog input Class-AB audio amplifier with no-clip noise gate

Catalog

1.35-W, stereo, analog input Class-AB audio amplifier with no-clip noise gate

Part	Features	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Supplier Device Package	Mounting Type	Output Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Type	Max Output Power x Channels @ Load	Amplifier Type	Utilized IC / Part	Supplied Contents	Board Type
Texas Instruments LM49153TME/NOPB	Depop Differential Inputs I2C Input Multiplexer Shutdown Volume Control	85 °C	-40 °C	25-WFBGA DSBGA	25-DSBGA	Surface Mount	1-Channel (Mono) with Mono and Stereo Headphones	2.7 V	5.5 V	Class D Class G	1.35 W 25 mW
Texas Instruments LM49153TMX/NOPB	Depop Differential Inputs I2C Input Multiplexer Shutdown Volume Control	85 °C	-40 °C	25-WFBGA DSBGA	25-DSBGA	Surface Mount	1-Channel (Mono) with Mono and Stereo Headphones	2.7 V	5.5 V	Class D Class G	1.35 W 25 mW
Texas Instruments LM49153TMEVAL							1-Channel (Mono) with Mono and Stereo Headphones	2.7 V	5.5 V		1.35 W 25 mW	Class D Class G	LM49153	Board(s)	Fully Populated

Catalog

1.35-W, stereo, analog input Class-AB audio amplifier with no-clip noise gate

Key Features

• Class G Ground Referenced Headphone OutputsHigh Efficiency Class D Amplifier with Spread SpectrumNo ClipSpeaker ProtectionNoise GateI2C Volume and Mode ControlAdvanced Click-and-Pop SuppressionMicro-Power ShutdownKey SpecificationsClass G Headphone Amplifier,HPVDD= 1.8V, RL= 32ΩIDDQHP, 1.2mA (Typ)POUT, THD+N ≤ 1%, 25mW (Typ)HP VOS, 0.5mV (Typ)Mono Class D Speaker Amplifier,RL= 8Ω, THD+N < 1%POUT, LSVDD= 5.0V, 1.35W (Typ)POUT, LSVDD= 3.6V, 680mW (Typ)Efficiency 88% (Typ)All trademarks are the property of their respective owners.Class G Ground Referenced Headphone OutputsHigh Efficiency Class D Amplifier with Spread SpectrumNo ClipSpeaker ProtectionNoise GateI2C Volume and Mode ControlAdvanced Click-and-Pop SuppressionMicro-Power ShutdownKey SpecificationsClass G Headphone Amplifier,HPVDD= 1.8V, RL= 32ΩIDDQHP, 1.2mA (Typ)POUT, THD+N ≤ 1%, 25mW (Typ)HP VOS, 0.5mV (Typ)Mono Class D Speaker Amplifier,RL= 8Ω, THD+N < 1%POUT, LSVDD= 5.0V, 1.35W (Typ)POUT, LSVDD= 3.6V, 680mW (Typ)Efficiency 88% (Typ)All trademarks are the property of their respective owners.

Description

The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device. The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection. Mode selection, shutdown control, and volume are controlled through an I2C compatible interface. Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm). The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device. The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection. Mode selection, shutdown control, and volume are controlled through an I2C compatible interface. Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).