AK7714 Datasheet, PDF (6/48 Pages) Asahi Kasei Microsystems – 20-Bit Audio Codec with DSP and Delay RAM

[ASAHI KASEI]
[AK7714]
Pin No.
23
24
27
28
30,31
32,33
34
35
36
37
39
40
41
Pin name
SDIN1
SDIN2
XTI
XTO
DVSS
DVDD
OPCL
CLKO
LRCLK
BITCLK
DRDY
SO
RDY
I/O
Function
DSP Serial data input pin (Pulldown)
I Compatible with MSB first/LSB first 24, 20 and 16 bits
Classification
Digital section
Serial input data
DSP Serial data input pin (Pulldown)
I Compatible with MSB first/LSB first 24, 20 and 16 bits
Master clock input pin
System clock
I Connect a crystal oscillator between this pin and the XTO pin, or input the
external CMOS clock signal XTI pin. The clock frequency
can be selected by the CKS0 and CKS1 pins.
Crystal oscillator output pin
O When a crystal oscillator is used, connect it between the XTI pin and this pin.
When the external clock is used, keep this pin open.
Digital Ground
Power supply
-
+5 V Digital Power supply
-
ADC/DAC connection selector pin (Pulldown)
I OPCL="L" (Leave open or connect to DVSS.): Connected
OPCL="H": Disconnected
Clock output pin
O Outputs the XTI clock.
Allows the output to be set to "L" using the CTRL0 and CTRL1 pins.
LR channel select Clock pin
I/O SMODE="L": Slave mode: Inputs the fs clock.
SMODE="H": Master mode: Outputs the fs clock.
Serial bit clock pin
I/O SMODE="L": Slave mode: Inputs 64 fs or 48 fs clocks.
SMODE="H": Master mode: Outputs 64 fs clocks.
Output data ready pin for microcomputer interface.
O
Control
Others
System clock
Microcomputer
interface
Serial data output pin for microcomputer interface (compatible with Hi-Z)
O Hi-Z state is obtained when CS =”H".
Data write ready output pin for microcomputer interface (compatible with Hi-Z)
O Hi-Z state is obtained when CS =”H”.
M0018-E-00
-6-
‘98/07