AD8256A-LEG Elite Semiconductor Memory Technology Inc, AD8256A-LEG Datasheet

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AD8256A-LEG

Manufacturer Part Number
AD8256A-LEG
Description
2x16W Stereo Digital Audio Amplifier with Headphone Driver
Manufacturer
Elite Semiconductor Memory Technology Inc
Datasheet
ESMT
Features
ORDERING INFORMATION
Elite Semiconductor Memory Technology Inc.
16/18/20/24-bit input with I
PSNR & DR(A-weighting)
Loudspeaker: 93dB (PSNR), 98dB (DR)
Headphone: 86dB (PSNR), 96dB (DR)
Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz
System clock = 64x,128x,192x,256x,384x,
Supply voltage
3.0~12V for loudspeaker driver
3.0~3.3V for others
Loudspeaker output power
2×10W(Full,8Ω) @ 1kHz and 10% THD+N
2×12.5W(Full,6Ω) @ 1kHz and 10% THD+N
2×16W(Full,4Ω) @ 1kHz and 10% THD+N
Headphone power
34mW into 32Ω@1kHz and 1% THD+N
65mW into 16Ω@1kHz and 1% THD+N
110mW into 8Ω@1kHz and 1% THD+N
200mW into 4Ω@1kHz and 1% THD+N
Sound processing including:
Bass (+18dB~-12dB, 3dB frequency is 250Hz),
Treble (+18dB~-12dB, 3dB frequency is 7kHz),
5 bands parametric EQ,
Volume control (+24dB~-103dB, 1dB/step) and
and Right-alignment data format
512x, 576x, 768x, 1024x Fs
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
2x16W Stereo Digital Audio Amplifier with Headphone Driver
Product Number
AD8256A-LEG
AD8256A-KG
7x7 48L E-LQFP
7x7 48L QFN
2
S, Left-alignment
Package
Comments
Pb-free
Pb-free
Applications
Description
This is a stereo fully digital audio amplifier with
output power which can deliver up to 2×16W to 4Ω
load with 12V supply voltage. Using I
control interface, AD8256A provides sound
processing functions including Volume, Bass, Treble,
EQ, Mixing and Dynamic Range Control (DRC).
Dynamic range control
Anti-pop design
Over-temperature protection
Under-voltage shutdown
Short-circuit protection
I
CD and DVD
TV audio
Car audio
Boom-box
MP3 docking systems
Portable / Handheld
Powered speaker
Wireless audio
USB speaker
2
C control interface
Publication Date: May. 2007
Revision: 1.3
AD8256A
2
C digital
1/33

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AD8256A-LEG Summary of contents

Page 1

... Treble (+18dB~-12dB, 3dB frequency is 7kHz), 5 bands parametric EQ, Volume control (+24dB~-103dB, 1dB/step) and ORDERING INFORMATION Product Number Package AD8256A-KG 7x7 48L QFN AD8256A-LEG 7x7 48L E-LQFP Elite Semiconductor Memory Technology Inc. Dynamic range control Anti-pop design Over-temperature protection Under-voltage shutdown Short-circuit protection ...

Page 2

... Digital Ground2 Digital Ground1 No Connection Serial audio data input 0 Serial audio data input 1 Serial audio data input 2 Left/Right clock input (Fs) Bit clock input (64Fs) Right channel output1 (-) Ground1 for right channel Right channel output1 (+) AD8256A HPL 1 36 HPR 35 2 AGND 3 34 AVDD ...

Page 3

... Supply1 for left channel A Left channel output1 (+) Ground1 for left channel Left channel output1 (-) Supply1 for left channel B PLL Bypass AD8256A (Note2) Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer Open-drain output Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer ...

Page 4

... Note3:The thermal pad is at the bottom of package. To optimize the performance of thermal dissipation, solder the thermal pad to PCB’s ground plane is suggested. Elite Semiconductor Memory Technology Inc. (℃/W) (℃/W) (℃/W) θ Ψ θ 23.5 1.6 12.5 23.8 1.8 15.8 AD8256A Exposed Thermal Pad Yes (Note3) Publication Date: May. 2007 Revision: 1.3 4/33 ...

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