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参数资料
| 型号： | AD82551A |
| 厂商： | Elite Semiconductor Memory Technology Inc. |
| 英文描述： | Stereo Digital Audio Amplifier with Headphone Driver |
| 中文描述： | 立体声数字音频放大器驱动器，带有耳机 |
| 文件页数： | 1/3页 |
| 文件大小： | 188K |
| 代理商： | AD82551A |
ES MT
AD82551A
Elite Semiconductor Memory Technology Inc.
Publication Date
：
Apr. 2007
Revision
：
1.1 1/15
Stereo Digital Audio Amplifier with Headphone Driver
Features
z
16/18/20/24-bit input with I
2
S data format
z
PSNR & DR (A-weighting)
Loudspeaker: 98dB (PSNR), 102dB (DR)
Headphone: 87dB (PSNR), 96dB (DR)
z
Multiple sampling frequencies (Fs)
8kHz, 12kHz, 16kHz, 22.05kHz, 24kHz
32kHz, 44.1kHz, 48kHz,
64kHz, 88.2kHz and 96kHz
z
System clock = 256Fs
z
8Fs switching for loudspeakers and headphones
z
Single or dual supply
Single supply: 3.0~3.3V for the whole chip
Dual supply:
3.0~5V for loudspeaker drivers
3.0~3.3V for others
z
Loudspeaker power
2.3W into 4
Ω
load @ 0dB 1kHz sinewave input
1.3W into 8
Ω
load @ 0dB 1kHz sinewave input
z
Loudspeaker power efficiency (
η
)
86% for 4
Ω
@ 0dB 1kHz sinewave input
91% for 8
Ω
@ 0dB 1kHz sinewave input
z
Headphone power
35mW into 32
Ω
@1kHz and 1% THD+N
65mW into 16
Ω
@1kHz and 1% THD+N
113mW into 8
Ω
@1kHz and 1% THD+N
z
Volume control
53steps:0~-40dB(1dB/step) -42~-64dB(2dB/step)
z
Mute function
z
Power down function
z
Anti-pop design
z
Over-temperature protection
z
Under-voltage shutdown
z
Short-circuit detection
Applications
Functional Block Diagram
z
CD and DVD
z
TV audio
z
Internet audio
z
USB speaker
z
MP3
z
Headphone Amplifier
z
PDA
z
Portable / Handheld
z
Mobile phone
z
Car audio
Description
This is a stereo digital audio amplifier with high
power efficiency, which leads to longer battery life,
less heat sink requirement, smaller board size and
lower
system
cost.
AD82551A
headphone connection and choose to drive either
stereo
loudspeakers
or
Operating with 3.0/3.3/5V loudspeaker driver supply,
each loudspeaker channel can typically deliver
0.8/1.0/2.3W to a 4
Ω
loudspeaker, respectively, with
less than 1% THD+N. Operating with 3.0/3.3V
headphone driver supply, each headphone channel
can typically deliver 29/35mW to 32
Ω
, 54/65mW to
16
and 94/113mW to 8
Ω
, respectively, with less
than 1% THD+N.
can
detect
stereo
headphones.
ORDERING INFORMATION
Product Number
Package
Comments
AD82551A-CG
24L SSOP 209mil
Pb-free
相关PDF资料 |
PDF描述 |
|---|---|
| AD82551A-CG | Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A | 2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A-KG | 2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A-LEG | 2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8258A | Stereo/Mono Digital Audio Amplifier with Headphone Driver and SubWoofer Line-Out |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD82551A-CG | 制造商:ESMT 制造商全称:Elite Semiconductor Memory Technology Inc. 功能描述:Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A | 制造商:ESMT 制造商全称:Elite Semiconductor Memory Technology Inc. 功能描述:2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A-KG | 制造商:ESMT 制造商全称:Elite Semiconductor Memory Technology Inc. 功能描述:2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8256A-LEG | 制造商:ESMT 制造商全称:Elite Semiconductor Memory Technology Inc. 功能描述:2x16W Stereo Digital Audio Amplifier with Headphone Driver |
| AD8258A | 制造商:ESMT 制造商全称:Elite Semiconductor Memory Technology Inc. 功能描述:Stereo/Mono Digital Audio Amplifier with Headphone Driver and SubWoofer Line-Out |
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