AK7736BVQ Datasheet, PDF (1/22 Pages) HuaXinAn Electronics CO.,LTD – Audio/HF DSP

[AK7736B]
AK7736B
Audio/HF DSP with 2Ch SRC
1. General Description
The AK7736B is a highly integrated audio digital signal processor with integrated 2ch SRC. It includes
internal memories for digital audio processing, that allows surround effect process, time alignment and
parametric equalizing. Moreover, the AK7736B can process both data and filter coefficients as floating point
data so that high accuracy IIR/FIR filter performance can be achieved easily. The AK7736B can operate a
hands-free software by AKM as well as sound processing, by programs downloaded via the microprocessor
interface.
2. Features
□ DSP Block
- Word length: 24-bit
- Machine Cycle: 8.1 ns (2560step/fs; fs = 48kHz)
- Step
fs=48kHz: Maximum 2560 step
fs=8kHz: Maximum 15360step
fs=16kHz: Maximum 7680step
- Multiplication: 20 x 24 → 44-bit (Double precision arithmetic available)
- Divider 20 / 20 → 20-bit (floating point normalization function)
- ALU: 48-bit arithmetic and logic operation (overflow margin 4-bit)
- Shift: Multiple DBUS ±15bit Shift with indirect shifting function
- Program RAM (PRAM): 6144word x 36-bit
- Coefficient RAM (CRAM): 4096word x 24-bit
- Data RAM (DRAM): 4096 x 24-bit (Variable Bank Size)
- Offset Register (OFREG): 32word x 15-bit
- Delay RAM (DLRAM): 16384word x 24-bit (Variable Bank Size)
- Register: 48-bit × 4 (ACC) [ALU]
24-bit × 12 (TMP) [DBUS connection]
24-bit × 6 level stack (PTMP) [DBUS connection]
□ Stereo 24-bit SRC
-SRC: FSI=8kHz to 96kHz / FSO=8kHz to 96kHz (FSO/FSI = 0.167 to 6.0)
□ Mono 24-bit Simple SRC
-FSCONV: FSI=44.1kHz to 48kHz / FSO=8kHz to 16kHz
□ Digital Interface Input/Output
- 8ch Serial Data Inputs
- 8ch Serial Data Outputs
- Sampling Frequency: 8kHz to 96kHZ
□ Microcontroller Interface: SPI, I²CBUS (400kHz Fast-Mode)
□ PLL
□ Power Supply
-VDD: 3.0 to 3.6V typ 3.3V (Internal Regulator)
-TVDD: 1.7 to 3.6V (1~8pin)
□ Operating Temperature Range: -40°C to 85°C
□ Package: 48-pin LQFP
MS1562-E-00-PB
-1-
2013/10