AK7754 Datasheet, PDF (4/26 Pages) Asahi Kasei Microsystems – Audio DSP with Stereo CODEC + MIC/HP-AMP

■ DSP Block Diagram
CP0,CP1
DP0,DP1
CRAM
2048w x 16-Bit
DRAM
512w x 24-Bit
512w x 24-Bit
CBUS(16-Bit)
DBUS(24-Bit)
MPX16
MPX20
X
Y
Multiply
16 x 20 → 36-Bit
36-Bit
24-Bit
40-Bit
MUL DBUS
SHIFT
40-Bit
A
B
ALU
40-Bit
Overflow Margin: 4-Bit
40-Bit
DR0 ∼ 3
40-Bit
Over Flow Data
Generator
Division 20÷20→20 _{Peak Detector}
[AK7754]
DLP0,DLP1
DLRAM
3072w x 24-Bit
2048w x 12-Bit
OFREG
32w x 12-Bit
Micon I/F
Control
Serial I/F
DEC
PRAM
2048w x 36-Bit
PC
Stack: 5level(max)
TMP 12 x 24-Bit
PTMP(LIFO) 6 x 24-Bit
2 x 24,16-Bit DIN3 (ADC)
2 x 24,20,16-Bit DIN2 (SRC)
2 x 24,20,16-Bit DIN1
2 x 24,20,16-Bit
2 x 24,20,16-Bit
2 x 24,20,16-Bit
DOUT3 (DAC)
DOUT2
DOUT1
MS1138-E-01-PB
-4-
2012/03