LM49153

AKTIV

1,35-W-Stereo-Audioverstärker (Klasse AB) mit Analog-Eingang und No-Clip-Noise Gate

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Datenblatt

document-pdfAcrobat Mono Audio w/Class G Headphone Amp, Class D Spkr Amp, Noise Gate & Spkr Protect datasheet (Rev. C) (Englisch)

LM49153

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Rating

Catalog

Power stage supply (max) (V)

5.5

Power stage supply (min) (V)

2.7

Load (min) (Ω)

8

Output power (W)

1.35

SNR (dB)

98

THD + N at 1 kHz (%)

0.02

Iq (typ) (mA)

1.2

Control interface

I2C

Closed/open loop

Open

Analog supply (min) (V)

2.7

Analog supply voltage (max) (V)

5.5

PSRR (dB)

94

Operating temperature range (°C)

-40 to 85

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Rating

Catalog

Power stage supply (max) (V)

5.5

Power stage supply (min) (V)

2.7

Load (min) (Ω)

8

Output power (W)

1.35

SNR (dB)

98

THD + N at 1 kHz (%)

0.02

Iq (typ) (mA)

1.2

Control interface

I2C

Closed/open loop

Open

Analog supply (min) (V)

2.7

Analog supply voltage (max) (V)

5.5

PSRR (dB)

94

Operating temperature range (°C)

-40 to 85

DSBGA (YFQ)

25

4.84 mm² 2.2 x 2.2

Class G Ground Referenced Headphone Outputs
High Efficiency Class D Amplifier with Spread Spectrum
No Clip
Speaker Protection
Noise Gate
I²C Volume and Mode Control
Advanced Click-and-Pop Suppression
Micro-Power Shutdown

Key Specifications

Class G Headphone Amplifier,
HPV_DD = 1.8V, R_L = 32Ω
- IDDQ_HP, 1.2mA (Typ)
- P_OUT, THD+N ≤ 1%, 25mW (Typ)
- HP V_OS, 0.5mV (Typ)
Mono Class D Speaker Amplifier,
R_L = 8Ω, THD+N < 1%
- P_OUT, LSV_DD = 5.0V, 1.35W (Typ)
- P_OUT, LSV_DD = 3.6V, 680mW (Typ)
- Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

Class G Ground Referenced Headphone Outputs
High Efficiency Class D Amplifier with Spread Spectrum
No Clip
Speaker Protection
Noise Gate
I²C Volume and Mode Control
Advanced Click-and-Pop Suppression
Micro-Power Shutdown

Key Specifications

Class G Headphone Amplifier,
HPV_DD = 1.8V, R_L = 32Ω
- IDDQ_HP, 1.2mA (Typ)
- P_OUT, THD+N ≤ 1%, 25mW (Typ)
- HP V_OS, 0.5mV (Typ)
Mono Class D Speaker Amplifier,
R_L = 8Ω, THD+N < 1%
- P_OUT, LSV_DD = 5.0V, 1.35W (Typ)
- P_OUT, LSV_DD = 3.6V, 680mW (Typ)
- Efficiency 88% (Typ)

All trademarks are the property of their respective owners.

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).

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	Typ	Titel		Datum
*	Data sheet	Mono Audio w/Class G Headphone Amp, Class D Spkr Amp, Noise Gate & Spkr Protect datasheet (Rev. C)		01 Mai 2013

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LM49153

1,35-W-Stereo-Audioverstärker (Klasse AB) mit Analog-Eingang und No-Clip-Noise Gate

LM49153

Produktdetails

Key Specifications

Key Specifications

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Design und Entwicklung

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