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AK7600
2 路输入/6 路输出数字音频处理器
The AK7600 is a digital sound processor with one stereo input and three stereo outputs, designed for stereo multi-speaker application requirements. The built-in digital sound processor offers a stereo 5-Band Parametric Equalizer, an independent 6-Ch Delay Time controller and three stereo Cross Over Filters, enabling an audio system to provide the best sound performance in varied listening environments and speaker systems. The AK7600 integrates 2-Ch ADC and 6-Ch DAC allowing this device easily to be implemented before a traditional speaker path. He device operates from a single 5V supply at temperature range from -40 to +85℃, and is available in a space saving 30 pin VSOP package, ideal for automotive AV head unit applications.
Features
- Digital Sound Processor
(5-Band Parametric Equalizer
· Frequency setting at steps of 1Hz
· Programmable also for “Q” and “Gain”
(Stereo Re-mixer with programmable 2nd order IIR Filter
(Delay Line Memory for Time Alignment in 6 outputs
· Configurable delay time: 36 msec totally for 6 channels
(@ fs 44.1kHz)
· Time alignment step: 23µsec (@ fs 44.1kHz)
Cross Over Filter
· Configurable to HPF or LPF for three stereo output lines, enabling
2-Way Speaker Systems to achieve in appropriate cross over
frequency profile.
- Stereo 24Bit ADC for input
Single-ended input
THD+n: -90dB DR: 97dB
x64 over sampling and Linear phase digital anti-alias-filter
Digital HPF to eliminate DC Offset
- Three Stereo 24Bit DACs for output
Single-ended output
THD+n: -90dB DR: 100dB
X128 over sampling
Soft mute for output
Zero detection selectable for three stereo lines
- Three Stereo Digital Audio Interfaces for output
Format: 24Bit IIS or Left Justified
Bit Clock: x64 of LR Clock, Master mode
- Spectrum Analyzer
enables an audio system to implement a dynamic spectrum level demonstration.
Analyzed Spectrum: Seven Fixed Bands
60, 160, 400, 1K, 2.5K, 6.3K, and 16KHz
Level Resolution: 16 bits
- Master clock
256fs supplied from X’tal or direct clock input
Typical specified fs: 44.1KHz
Supportable fs rage: 40KHz to 50KHz
- Microcomputer Control I/F:
IIC Bus (Ver. 1.0, 400kHz High Speed Mode)
- Power Save Control
Programmable control by section
- Power Supply
4.5 to 5.0V Single supply
(Digital section operates from 1.8V internal supply rail generated by built-in regulator.)
- Operating Temperature:
- 40 to 85 ℃
- Package:
30pin VSOP (0.65mm pitch)
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Block Diagram
Applications
- In-car Audio Multi-speaker Systems
- Mini/Micro Stereo Components
- Multimedia Speakers Systems
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Download Datasheet
AK7600
September 2008
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AKD7600
使用方便的
AK7600 评估套件
· 即时连接式 A-in/A-out 端子
· 供用户 PC 使用的 USB I/F
· 由参数控制的 GUI
· 便于重新装载预置文件
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Download Board Manual
AKD7600
April 2008
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