AK7759VN

DSP with Stereo CODEC

  • Inquiry
  • Data Sheet

Description

AK7759VN The AK7759 is a highly integrated digital signal processor, a stereo audio CODEC, a MIC gain amplifier, a line-out amplifier, digital audio I/F. The DSP has 3072step at fs = 48kHz parallel processing power. As the AK7759 is a RAM based DSP, it is programmable for user requirements such as high performance hands free function and acoustic effects. The AK7759 is available in a space saving small 36-pin QFN package.

Key Features

□ DSP:
- Word Length: 28-bit (Floating Point)
- Instruction Cycle: Maximum 6.8ns (3072fs, fs=48kHz)
- Program RAM (PRAM): 5120 x 36-bit
- Coefficient RAM (CRAM): 4096 x 24-bit
- Offset Register (OFREG): 32 × 15-bit
- JX pins (Conditional Branch Control)
□ Digital Interface:
- Digital Signal Input Port (4ch) MSB justified 24-bit / LSB justified 24, 20, 16-bit and I2S
- Digital Signal Input Port (6ch) MSB justified 24-bit / LSB justified 24, 20, 16-bit and I2S
- Short / Long Frame
- TDM 256fs (8ch) Format
□ Analog Input:
- Full Differential / Single-ended, Pseudo Differential Inputs
- Channel Independent Microphone Analog Gain Amplifier (-6 to 27dB, 3dB Step)
□ Stereo 24-bit ADC:
- Sampling Frequency: fs=8 to 48kHz
- ADC Characteristics S/(N+D): 80dB; DR, S/N: 90dB
- Channel Independent Digital Volume (24 to -103dB, 0.5dB Step, Mute)
- Digital HPF for DC Offset Cancelling
- Digital LPF: Voice Filter / Sharp Roll-Off Filter
□ Stereo 24-bit DAC:
- Sampling Frequency: fs=8 to 48kHz
- Digital Volume (12 to -115dB, 0.5dB Step, Mute)
- Digital LPF: Sharp Roll-Off Filter
□ Line Output:
- Full Differential Output
- S/(N+D): 80dB; DR, S/N: 90dB
□ 2ch Digital Microphone (DMIC) Interface:
- Digital LPF: Voice Filter / Sharp Roll-Off Filter
□ 2 types Analog Direct Path:
- Full Differential / Single-ended Input/Output
□ Digital Mixer
□ PLL Circuit
□ DIT:
- S/PDIF, IEC60958, AES/EBU, EIAJ CP1201 Consumer Mode
- 24bit 2ch Output
□ μP Interface: SPI, I2CBUS (400kHz Fast-Mode, 1MHz Fast-Mode-Plus)
□ I2C bootloader
- EEPROM Mat Selectable
□ Power Supply:
- Analog AVDD: 3.0 to 3.6V (3.3V typ.)
- Digital LVDD: 3.0 to 3.6V (3.3V typ.)
- I/F TVDD: 1.7 to 3.6V (3.3V typ.)
□ Operating Temperature Range: -40 to 105°C
□ Storage Temperature: -65 to 150°C
□ Package: 36-pin QFN (6x6mm, 0.5mm pitch)

>> Read more

Block Diagram

Block Diagram

Page Top

top