Datasheet LM4947TL - National Semiconductor AMP, AUDIO, CLASS D MONO, SMD, BUMP25

Part Number: LM4947TL

Detailed Description

Manufacturer: National Semiconductor

Description: AMP, AUDIO, CLASS D MONO, SMD, BUMP25

Docket:
LM4947 Mono Class D and Stereo Audio Sub-System with OCL Headphone Amplifier and National 3D
November 9, 2007
LM4947 Mono Class D and Stereo Audio Sub-System with OCL Headphone Amplifier and National 3D
General Description
The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8 bridged-tied load (BTL) with 1% THD +N, 37mW (Class AB operation) power channel of continuous average power into stereo 32 single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configuration, from a 3.3V power supply.

The LM4947 has six input channels: one pair for a two-channel stereo signal, the second pair for a secondary two-channel stereo input, and the third pair for a differential single-channel mono input. Additionally, the two sets of stereo inputs may be configured as a single stereo differential input (differential left and differential right). The LM

Specifications:

Base Number: 4947
Load Impedance Min: 8 Ohm
Mounting Type: SMD
Number of Channels: 3
Number of Pins: 25
Operating Temperature Range: -40°C to +85°C
Package / Case: Bump
Power Rating RMS: 1.19 W
SVHC: No SVHC (15-Dec-2010)
Supply Voltage Range: 2.7 V to 5.5 V

RoHS: Yes