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參數(shù)資料
| 型號： | AD8258A |
| 廠商： | Elite Semiconductor Memory Technology Inc. |
| 英文描述： | Stereo/Mono Digital Audio Amplifier with Headphone Driver and SubWoofer Line-Out |
| 中文描述： | 立體聲/單聲道數(shù)字音頻放大器耳機驅(qū)動器和低音炮線路輸出 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 198K |
| 代理商： | AD8258A |
ES MT
Preliminary
AD8258A
Stereo/Mono Digital Audio Amplifier with Headphone Driver and
SubWoofer Line-Out
Features
z
16/18/20/24-bit input with I
2
S, Left-alignment
and Right-alignment data format
z
PSNR & DR(A-weighting)
Loudspeaker: 92dB (PSNR), 89dB (DR) @24V
Headphone: 86dB (PSNR), 86dB (DR)
z
Multiple sampling frequencies (Fs)
32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz
128kHz/176.4kHz/192kHz
z
System clock = 64x, 128x, 192x, 256x, 384x,
512x, 576x, 768x, 1024x Fs
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
64x~256x Fs for 128kHz/176.4kHz/192kHz
z
Supply voltage
12V~24V for loudspeaker driver
3.0~3.3V for others
z
Loudspeaker output power for 24V
2
×
28W into 8
@1% THD+N for stereo
2
×
35W into 8
@10% THD+N for stereo
1x55W into 4
@1% THD+N for mono
1x70W into 4
@10% THD+N for mono
z
Headphone power
40mW into 32
@1kHz and 1% THD+N
80mW into 16
@1kHz and 1% THD+N
z
Sound processing including
：
Bass (+18dB~-12dB, 3dB frequency is 250Hz),
Treble (+18dB~-12dB, 3dB frequency is 7kHz),
5 bands parametric EQ,
Elite Semiconductor Memory Technology Inc.
Publication Date: Sep. 2007
Revision: 0.1 1/37
Volume control (+24dB~-103dB, 1dB/step) and
Dynamic range control
z
Anti-pop design
z
Over-temperature protection
z
Under-voltage shutdown
z
Short-circuit protection
z
I
2
C control interface
z
Subwoofer line-out support
Applications
z
CD and DVD
z
TV audio
z
Car audio
z
Boom-box
z
MP3 docking systems
z
Portable / Handheld
z
Powered speaker
z
Wireless audio
z
USB speaker
Description
This is a stereo/mono fully digital audio amplifier with
output power which can drive 8
Ω/4Ω
load with up to
24 V voltage supply. Using I
2
C digital control interface,
AD8258A provides sound processing includes Volume,
Bass, Treble, EQ, Mixing and Dynamic Range Control
(DRC). Protection circuits are provided to protect
AD8258A damage while connection error. It is possible
to compose of 2.1 channels with two pieces of
AD8258A and 5.1 channels with four pieces.
ORDERING INFORMATION
Product Number
Package
Comments
AD8258A
10x10 64L E-LQFP
Pb-free
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