AK7759

[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 - Di...