AK7722 Datasheet, PDF (4/28 Pages) Asahi Kasei Microsystems – 24bit 4ch ADC + 24bit 4ch DAC with Audio DSP

CP0, CP1
DP0, DP1
CRAM
2048W x 24-Bit
DRAM
2048w x 24-Bit
CBUS(24-Bit)
DBUS(24-Bit)
MPX24
MPX20
X
Y
Multiply
24 x 20 → 44-Bit
44-Bit
24-Bit
48-Bit
MUL DBUS
SHIFT
44-Bit
A
B
ALU
48-Bit
Overflow Margin: 4-Bit
48-Bit
DR0 ∼ 3
48-Bit
Over Flow Data
Generator
[AK7722]
DLP0, DLP1
DLRAM1:3072W x 24-Bit
DLRAM2:2048W x 24-Bit
OFREG
64w x 13-Bit
Micon I/F
Control
Serial I/F
DEC
PRAM
3072w x 36-Bit
PC
Stack: 5level(max)
TMP 12 x 24-Bit
PTMP(LIFO) 6 x 24-Bit
2 x 24(,16)-Bit DIN5 (ADC2)
2 x 24(,16)-Bit DIN4 (ADC1)
2 x 24, 20, 16-Bit DIN3 (SRC)
2 x 24, 20, 16-Bit DIN2
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
2 x 24, 20, 16-Bit
2 x 24, 20, 16-Bit
DOUT5(DAC2)
DOUT4(DAC1)
DOUT3
DOUT2
DOUT1
Division 20÷20→20 _{Peak Detector}
Figure 2. Main DSP Block Diagram of the AK7722
MS1328-E-00-PB
-4-
2011/09