Datasheet LM4922TL/NOPB - Texas Instruments Audio Amplifiers
Part Number: LM4922TL/NOPB
Detailed Description
Manufacturer: Texas Instruments
Description: Audio Amplifiers
Docket:
NRND LM4922
www.ti.com SNAS327D NOVEMBER 2005 REVISED OCTOBER 2011 LM4922 Ground-Referenced, Ultra Low Noise, Fixed Gain, 80mW Stereo Headphone Amplifier
Check for Samples: LM4922 1 FEATURES
Fixed Logic Levels Ground referenced outputs High PSRR Available in space-saving micro SMD package Ultra low current shutdown mode Improved pop and click circuitry eliminates noises during turn-on and turn-off transitions No output coupling capacitors, snubber networks, bootstrap capacitors, or gain-setting 2 resistors required Shutdown either channel independently APPLICATIONS Notebook PCs Mobile Phone PDAs Portable electronic devices MP3 Players DESCRIPTION
The LM4922 is a ground referenced, fixed-gain audio power amplifier capable of delivering 80mW of continuous average power into a 16 single-ended load with less than 1% THD+N from a 3V power supply.
The LM4922 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to
Specifications:
- Audio Load Resistance: 32 Ohm
- Available Set Gain: 3.52 dB
- Input Signal Type: Single
- Mounting Style: SMD/SMT
- Operating Supply Voltage: 3 V
- Operating Temperature Range: - 40 C to + 85 C
- Output Power: 0.08 W x 2 at 16 Ohm
- Output Signal Type: Single
- Output Type: 2-Channel Stereo
- Package / Case: uSMD
- Packaging Type: Reel
- Product: Class-AB
- Supply Type: Single
- Supply Voltage Range: 1.6 V to 4.2 V
- THD plus Noise: 0.04 %, 0.03 %
- RoHS: Yes