AK7707VQ Datasheet, PDF (1/34 Pages) Asahi Kasei Microsystems – Multi Core DSP with SRC

[AK7707]
AK7707
Multi Core DSP with SRC
1. General Description
The AK7707 is a highly integrated digital signal processor, including 6 stereo sampling rate convertors
supporting sampling frequency up to 192kHz, a DIR, a DIT and two types of DSPs for Audio and Voice
processing. The DSP1 supports a 295MHz core and is optimized for C-language support. DSP2 and
DSP3 have 4608 step/fs (when fs=48kHz) processing power. The AK7707 is able to process multiple
sample rates simultaneously. This function is ideal for full bandwidth audio and voice processing, such
as hands-free function along with audio. This simultaneous processing is enabled because the two
types of DSPs can work on different but synchronized sampling frequencies. The AK7707 is a RAM
based DSP, so it can be freely programmed for user requirements, such as acoustic effects and
proprietary high performance hands-free function. The AK7707 is available in a space saving 64-pin
HTQFP package.
2. Features
 DSP1(Tensilica Hifi2):
- Word Length:
64-bit
- Operation Clock:
294.912MHz (DSP1 Fast Mode)
- IRAM:
128KB
- DRAM:
384KB
- GPIO:
8 ports
- SPI Control Master Port x 1
- JTAG for On-chip Debugging
- Independent Power Management
 DSP2, 3(AKM DSP)
- Word Length:
28-bit (Data RAM: Simple floating point)
- Operation Clock
221.184MHz (4608steps, fs= 48kHz, DSP2/3 Fast Mode)
- Multiplier:
24 x 24 → 48-bit (Double precision arithmetic available)
- Divider:
24 / 24 → 24-bit (Floating point normalization function)
- ALU:
52-bit Arithmetic Operation (with overflow margin 4-bit)
- Program RAM (PRAM): 10kword x 36-bit (DSP2+DSP3 Total)
- Coefficient RAM (CRAM): 10kword x 24-bit (DSP2+DSP3 Total)
- Data RAM (DRAM):
10kword x 28-bit (DSP2+DSP3 Total)
- Delay RAM(DLRAM): 24kword x 28-bit (DSP2+DSP3 Total)
- JX pins (Interrupt)
- Independent Power Management Function
 SRC
- 2ch x 6
- FSI = 8kHz ~ 192kHz, FSO= 8kHz ~ 192kHz (FSO/FSI= 0.167 ~ 6.0)
016011589-E-00-PB
-1-
2016/11