AK7755EN_16 Datasheet, PDF (5/109 Pages) Asahi Kasei Microsystems – DSP with Mono ADC Stereo CODEC + Mic/Lineout Amp

[AK7755]
■ DSP Block Diagram
Pointer
CP0, CP1
DP0, DP1
DLP0, DLP1
Coefficient RAM
2048w×24-Bit
Data RAM
Delay RAM
2048w x 24-Bit(20.4f) _{8192w x 24-Bit(20.4f)}
CBUS(24-Bit)
DBUS(28-Bit)
OFREG
32w x 13-Bit
MPX24
MPX24
X
Y
Multiply
24 ×24 → 48-Bit
48-Bit
28-Bit
52-Bit
MUL DBUS
SHIFT
48-Bit
A
B
ALU
52-Bit
Overflow Margin: 4-Bit
52-Bit
DR0  3
52-Bit
Over Flow Data
Generator
Micon I/F
Control
Serial I/F
DEC
PRAM
4096w×36-Bit
PC
Stack : 5level(max)
TMP 12×24-Bit
PTMP(LIFO) 6×24-Bit
2×16/20/24-Bit DIN4
2×16/20/24-Bit DIN3
2×16/20/24-Bit DIN2
2×16/20/24-Bit DIN1
2×16/20/24-Bit
2×16/20/24-Bit
2×16/20/24-Bit
2×16/20/24-Bit
DOUT4
DOUT3
DOUT2
DOUT1
Accelerator
Coefficient RAM
(ACCRAM)
2048w x 20-Bit
Data RAM
(ACDRAM)
2048w x 16-Bit
Division 2020→20 _{Peak Detector}
Figure 2. DSP Block Diagram
014006643-E-00
-5-
2014/10