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Audio Processor
AK7730A
24bit 2ch ADC + Audio DSP with Delay RAM
*Not Recommended for New Designs. For New Designs:AK7734
AK7730A
  1. DSP:
    - Word length: 24-bit (Data RAM)
    - Instruction cycle time: 27ns (768fs, fs=48kHz )
    - Multiplier: 24 x 16 ® 40-bit
    - Divider: 24 / 24 ® 16-bit or 24-bit
    - ALU: 34-bit arithmetic operation (Overflow margin: 4bit)
    24-bit arithmetic and logic operation
    - Shift+Register: 1, 2, 3, 4, 6, 8 and 15 bits shifted left
    1, 2, 3, 4, 8 and 15 bits shifted right
    Other numbers in parentheses are restricted. Provided with indirect shift function
    - Program RAM: 768 AK7730A BLOCK DIAGRAM 32-bit
    - Coefficient RAM: 1024 AK7730A BLOCK DIAGRAM 16-bit
    - Data RAM: 256 AK7730A BLOCK DIAGRAM 24-bit
    - Offset RAM: 48 AK7730A BLOCK DIAGRAM 13-bit
    (6144 AK7730A BLOCK DIAGRAM 12-bit / 3072 AK7730A BLOCK DIAGRAM 24-bit / 4096 AK7730A BLOCK DIAGRAM 12-bit + 1024 AK7730A BLOCK DIAGRAM 24-bit )
    - Internal Memory: 72kbit SRAM
    - Sampling frequency: 8kHz to 192kHz
    - Serial interface port for micro-controller
    - Master clock: 768fs@48kHz ( generated by PLL from 256fs or 384fs )
    - Master/Slave operation
    -Serial signal input port ( up to 8 ch ):16/20/24-bit : Output port ( 8 ch ): 24-bit
  2. ADC: 2 channels
    - 24-bit 64x Over-sampling delta sigma
    - Sampling frequency: 8kHz to 96kHz
    - DR: 97dBA ( fs=48 kHz Full-differential Input )
    - S/N : 98dBA ( fs=48 kHz Full-differential Input )
    - S/(N+D) : 92dB ( fs= 48 kHz Full-differential Input )
    - Digital HPF (fc = 1Hz)
    - Single-ended or Full-differential Input
  3. Other

    -EEPROM boot

    (Optional Selectable EEPROM boot between 2 different programs)
    -Up to 3 external Jump pins
    -CRC error check function
    -LRCLK and BITCLK input and output for slave mode
    -Power supply: +3.3V±0.3V
    -Operating temperature range: -40°C~85°C
    -Package: 48pin LQFP (0.5mm pitch)
PDF
Download
PDF Data Sheets
Rev. MS0302-E-00 2004/05
PDF : 397KB / 62pages
   
AK7730A BLOCK DIAGRAM
AK7730A BLOCK DIAGRAM
To inquire for this product  |  USA   /   English