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MSM6789 - SBC Solid-State Recorder IC

Description

The MSM6789A/6789L, an improved version of MSM6788, is a solid-state recorder developed using the Sub Band Coding (SBC) method.

Just like MSM6788, the MSM6789A/6789L has a stand-alone mode and a microcontroller interface mode.

Features

  • SBC method.
  • Built-in 12-bit AD converter.
  • Built-in 12-bit DA converter.
  • Built-in microphone amplifier.
  • Built-in low-pass filter Attenuation characteristics.
  • 40 dB/oct.
  • External memories MSM6789A (5 V version) General-purpose DRAM, 32 Mbits maximum (for variable messages) 1-Mbit DRAM : Can be directly driven (MSM514256B, MSM511000B) 4-Mbit DRAM : Can be directly driven (MSM514400C, MSM514100C) 16-Mbit DRAM : Can be directly driven (MS.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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¡ Semiconductor ¡ Semiconductor MSM6789A/6789L GENERAL DESCRIPTION MSM6789A/6789L SBC Solid-State Recorder IC The MSM6789A/6789L, an improved version of MSM6788, is a solid-state recorder developed using the Sub Band Coding (SBC) method. Just like MSM6788, the MSM6789A/6789L has a stand-alone mode and a microcontroller interface mode. In the stand-alone mode, record/playback conditions can be selected from pins and the MSM6789A/6789L can be controlled by a simple drive timing. In the microcontroller interface mode, record/playback can be controlled by commands from the microcontroller, and more functions are available than in the stand-alone mode.