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ML2302TB Datenblatt(Datasheet) 1 Page - OKI electronic componets

Teile-Nr. ML2302TB
Beschreibung  Recording and Playback LSI with Built-in 2-Bit ADPCM2 Supported FIFO
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Hersteller  OKI [OKI electronic componets]
Homepage  http://www.oki.com
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OKI Semiconductor
FEDL2302DIGEST-05
Issue Date: Dec. 27, 2004
ML2302
Recording and Playback LSI with Built-in 2-Bit ADPCM2 Supported FIFO
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GENERAL DESCRIPTION
The ML2302 is a recording and playback LSI with built-in FIFO memories for buffering. It employs the new 2-bit
ADPCM2 algorithm in addition to conventional 4-bit OKIADPCM and 4-bit OKIADPCM2 algorithms.
The ML2302 operates at 2.7 to 3.6 V and supports a variety of applications.
FEATURES
• Built-in two 1024-bit FIFOs
(buffering time of 32 ms when using 8 kHz sampling frequency and 4-bit ADPCM)
• Supports five compression algorithms for recording and playback:
2-bit OKIADPCM2; 4/5/6/7-bit OKIADPCM2; 4-bit OKIADPCM; 8/16-bit straight PCM; 8-bit OKI
Nonlinear PCM
• Source oscillation frequency 16.384 MHz
• Sampling frequency (fsam)
4.0 to 12.8 kHz (OKIADPCM2)
4.0 to 25.6 kHz (8-bit straight PCM)
• Supports 8-bit bus interface.
• Built-in voice level detection function (VAC)
• Built-in noise injection function
• Supports external DAC interface.
• Built-in volume control circuit
(0 dB to –44 dB: –2 dB step, –44 dB to –80 dB: –4 dB step)
• Built-in 14-bit A/D converter and 14-bit D/A converter
• Built-in low pass filter (LPF)
(recording side: analog filter, playback side: digital filter)
• Built-in speaker amplifier (100 mW, 8Ω)
• Power supply voltage : +2.7 to +3.6 V
• Package
: 64-pin plastic TQFP (TQFP64-P-1010-0.50-K) (ML2302TB)
: 71-pin W – CSP




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