DSP - AKM
Description
[AK7759]
Product Brief
AK7759
DSP with Stereo CODEC
1.
General Description
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.
2.
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 (-6~27dB, 3dB Step)
Stereo 24-bit ADC: - Sampling Frequency: fs = 8kHz ~ 48kHz - ADC Characteristics S/(N+D): 80dB; DR, S/N: 90dB - Channel Independent Digital Volume (24dB ~ -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 = 8kHz ~ 48kHz - Digital Volume (12dB ~ -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
018913659-E-00-PB
-1-
2019/07
Interface: SPI, I2CBUS(400kHz Fast-Mo...
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