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发布者:微桥 发布时间:2009/12/31 阅读:8003次   
ADD2010-24 bits Audio Stereo DAC With DRC and EQ


ADD2010-24 bits Audio Stereo DAC With DRC and EQ,2Vrms Line Out DataSheet

Description
    ADD2010 is a 2Vrms output audio stereo DAC.
Cap-less design can eliminate output dc-blocking
capacitors for better low frequency response and save
cost.
    ADD2010 provides advanced audio processing
functions, such as volume control, 36 EQ bands, audio
mixing, 3D surround sound and Dynamic Range
Control (DRC). These are fully programmable via a
simple I2C control interface. Robust protection circuits
are provided to protect ADD2010 from damage due to
accidental erroneous operating condition. The full
digital circuit design of ADD2010 is tolerant of noise
and PVT (Process, Voltage, and Temperature)
variation. ADD2010 is pop free during instantaneous
power on/off or mute/shut down switching because of
its robust built-in anti-pop circuit.

Features
 16/18/20/24-bits input with I2S, Left-alignment
and Right-alignment data format
 Multiple sampling frequencies (Fs)
8kHz and 32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz and
128kHz / 176.4kHz / 192kHz
 System clock = 64x, 128x, 192x, 256x, 384x,
512x, 576x, 768x, 1024x Fs
MCLK system:
256x~4096x Fs for 8kHz
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
64x~256x Fs for 128kHz / 176.4kHz / 192kHz
BCLK system:
64xFs for 32kHz / 44.1kHz / 48kHz
64xFs for 64kHz / 88.2kHz / 96kHz
64xFs for 128kHz / 176.4kHz / 192kHz
 Supply voltage
1.8V or 3.3V for digital I/O
3.3V for analog and digital circuit
 Maximum output voltage
- 2Vrms at 3.3V supply voltage into 10kΩ load
- 25mW x 2ch into 32Ω @ 0.1% THD+N
 Sound processing including:
36 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic range control
Three Band plus post Dynamic range control
Power Clipping
Programmed 3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
DC-blocking high-pass filter
Pre-scale/post-scale
Virtual Bass/exciter
Dynamic bass
 Anti-pop design
 Level meter and power meter
 I2S output with selectable audio DSP point
 Supports I2C control without clock
 I2C control interface with selectable device
address
 Internal PLL
 LV Under-voltage shutdown
 Support initial EEPROM setting
 Protection
■ OTP
■ UVP

Applications
 A/V receivers
 CD and DVD players
 HDTV receivers
 Audio Output Application

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