ML2308 Overview
The ML2308 is a stereo recording/playback LSI that has integrated in a single chip all the functions required for recording and playing back audio data. Analog signals fed into the microphone or line inputs are converted into digital signals by the analog to digital converter, and output to external equipment via the buffer memory. Further, digital signals from external equipment are converted into PWM signals by...
ML2308 Key Features
- Supports Serial Peripheral Interface (SPI) or 8-bit bus interface
- Buffer memory for audio data buffer: 128 bytes (64 bytes each for left and right channels)
- Buffer memory status output pins FUL, MID, EMP Codec section/audio input and output sections
- Sampling frequency: 4.0 kHz to 32 kHz (selectable with mands)
- Built-in stereo ∆-Σ type 1-bit A/D converter S/(N+D): 80 dB DR, S/N: 85 dB
- Built-in stereo ∆-Σ type 1-bit D/A converter S/(N+D): 75 dB DR, S/N: 85 dB
- Built-in PWM driver for driving a speaker (150mW max, RL = 16Ω, at BTL)
- Microphone amplifier × 2, Line amplifier × 2 (Stereo)
- Dynamic Range Control (DRC) automatic recording level adjustment function
- Recording input level detect function Control mands