NCP2824 Datasheet, PDF (1/12 Pages) ON Semiconductor – Non-Clip and Power Limit Mono Class D Amplifier with AGC

NCP2824
Non-Clip and Power Limit
Mono Class D Amplifier
with AGC
Description
The NCP2824 is a Filterless Class D amplifier capable of delivering
up to 2.4 W to a 4 W load with a 5 V supply voltage. With the same
battery voltage, it can deliver 1.2 W to an 8 W load with less than 1%
THD+N. The non−clipping function automatically adjusts the output
voltage in order to control the distortion when an excessive input is
applied to the amplifier. This adjustment is done thanks to an
Automatic Gain Control circuitry (AGC) built into the chip. A simple
Single wire interface allows to the non Clipping function to be enabled
and disabled. It also allows the maximum distortion level in the output
to be configured. A programmable power limit function is also
embedded in order to protect speakers from damage caused by an
excessive sound level.
Features
• Non Clipping Function with Automatic Gain Control Circuitry
• Programmable Power Limit Function
• Single Wire Interface. No Need for Additional Components
• Max THD+N Configurable by Swire Interface
• Only One Capacitor Required
• Fully Differential Architecture: Better RF Immunity
• No Need for Input Capacitors in Fully Differential Configuration
• High Efficiency: up to 90%
• Low Quiescent Current: 2.2 mA Typ
• Large Output Power Capability
• High PSRR: up to −80 dB
• Fully Differential Capability: RF Immunity
• Thermal and Auto Recovery Short−Circuit Protection
• CMRR (−80 dB) Eliminates Two Input Coupling Capacitors
• Pb−Free and Halide−Free Device
Typical Applications
Audio Amplifier for:
• Cellular Phones
• Digital Cameras
• Personal Digital Assistant and Portable Media Player
• GPS
Demo Board Available:
• The NCP2824GEVB/D evaluation board configures the device in
typical application.
http://onsemi.com
1
9 PIN FLIP−CHIP
FC SUFFIX
CASE 499AL
PIN CONFIGURATION
A1 A2 A3
B1 B2 B3
C1 C2 C3
A1 = INP
A2 = VDD
A3 = OUTP
(Top View)
B1 = AGND
B2 = NC
B3 = PGND
C1 = INM
C2 = CNTL
C3 = OUTM
MARKING DIAGRAM
A3
A1
MRA
F
Y
WW
G or G
C1
= Specific Device Code
= Assembly Location
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
Device
NCP2824FCT2G
Package
WCSP−9
(Pb−Free)
Shipping^†
3000/Tape &
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2010
1
September, 2010 − Rev. 0
Publication Order Number:
NCP2824/D