AK7752 Datasheet, PDF (5/23 Pages) Asahi Kasei Microsystems – Audio/Hands Free DSP with Stereo CODEC

[AK7752]
No. Pin Name I/O
Function
Classification
18 DLINE_IN
HF Serial Data Input Pin ( Internal pull-down )
Digital Section
I Compatible with MSB / LSB justified 24, 20 and 16 bits. Normally connected Serial Input
to Bluetooth line (receiving).
Data
Digital Section
19
DEXT_IN/
JX3
HF Serial Data Input Pin ( Internal pull-down )
Serial Input
I Compatible with MSB / LSB justified 24, 20 and 16 bits. This pin changes to Data /
a conditional jump pin (JX3) by setting control register (JX3_E) to “1”.
Conditional
Input
20
JX2
I
Conditional Jump Pin2 (Internal pull-down)
A conditional jump pin (JX2) is available by setting control register (JX2_E)
to “1”.
Conditional
Input
21
JX1
Conditional Jump Pin1 (Internal pull-down)
I A conditional jump pin (JX1) is available by setting control register (JX1_E)
to “1”.
22
JX0
Conditional Jump Pin0 (Internal pull-down)
I A conditional jump pin (JX2) is available by setting control register (JX0_E)
to “1”.
23
DVDD
- Power Supply for Digital Section (3.3V typical)
Digital
24
DVSS
25 BITCLK_I
- Ground Pin for Digital Section 0V
I
Serial Bit Clock Input Pin
Normally connected to the Bluetooth Data Clock line (256kHz/512kHz).
Power Supply
System Clock
26
SYNC_I
I
SYNC Input Pin
Normally connected to the Bluetooth Sync Clock line (8kHz).
Reset Pin (for initialization)
27 INIT_RESET_N I Use to initialize the AK7752. When changing CKM [3:0] and changing XTI
or BITCLK_I input frequency, it is necessary to set this pin.
Clock Reset Pin
28 CK_RESET_N I
When changing CKM[3:0] and XTI or BITCLK_I input frequency without
using INIT_RESET_N, it is necessary to set this pin. The control register
CKRST has the same function.
Reset
29 S_RESET_N I System Reset N Pin
30 CKM[3] I Clock Mode Select Pin 3
Mode Select
31 CKM[2] I Clock Mode Select Pin 2
32
CLKO1
O
Clock Output Pin 1
The output frequency is selected by a control register.
Clock Output
MS0578-E-01-PB
-5-
2007/09