[AK4621]
PIN/FUNCTION
Function
Common Voltage Output Pin, (AVDD)/2
1
VCOM
O
Bias voltage of ADC inputs and DAC outputs.
2
AINR+
I
Rch Positive Input Pin
3
AINR-
I
Rch Negative Input Pin
4
AINL+
I
Lch Positive Input Pin
5
AINL-
I
Lch Negative Input Pin
Voltage Reference Input Pin, AVDD
6
VREF
I
Used as a voltage reference by ADC & DAC. VREF is connected externally to filtered
AVDD.
7
VSS1
-
Analog Ground Pin
8
AVDD
-
Analog Power Supply Pin, 4.75
∼
5.25V
Parallel/Serial Mode Select Pin
9
P/S
I
“L”: Serial Mode, “H”: Parallel Mode
Do not change this pin during PDN pin = “H”.
10 MCLK
I
Master Clock Input Pin
11 LRCK
I
Input/Output Channel Clock Pin
12 BICK
I
Audio Serial Data Clock Pin
13 SDTO
O
Audio Serial Data Output Pin
14 SDTI
I
Audio Serial Data Input Pin
OVFR
O
Rch Over Flow Flag Pin (in Parallel mode or when ZOS bit=“0” in Serial Mode)
15
DZFR
O
Rch Zero Detection Flag Pin (when ZOS bit=“1” in Serial Mode)
OVFL
O
Lch Over Flow Flag Pin (in Parallel mode or when ZOS bit=“0” in Serial Mode)
16
DZFL
O
Lch Zero Detection Flag Pin (when ZOS bit=“1” in Serial Mode)
CDTI
I
Control Data Input Pin (in Serial Mode)
17
CKS0
I
Master Clock Select Pin (in Parallel Mode)
CCLK
I
Control Data Clock Pin (in Serial Mode)
18
CKS1
I
Master Clock Select Pin (in Parallel Mode)
CSN
I
Chip Select Pin in Serial Mode (in Serial Mode)
19
Digital Audio Interface Select Pin (in Parallel Mode)
DIF
I
“L”: 24bit MSB justified, “H”: I2S compatible
20 DFS0
I
Double Speed Sampling Mode Pin
Power-Down Mode Pin
21 PDN
I
“L”: Power down reset and initialize the control register, “H”: Power up
22 DEM0
I
De-emphasis Control Pin
Digital Filter Select Pin
23 SDFIL
I
“L”: Short Delay Sharp Roll Off Filter (ADC), Short Delay Sharp Roll Off Filter (DAC)
“H”: Sharp Roll Off Filter (ADC), Sharp Roll Off Filter (DAC)
24 TVDD
-
Digital I/O Power Supply Pin, DVDD
∼
5.25V
25 DVDD
-
Digital Power Supply Pin, 3.0
∼
3.6V
26 VSS2
-
Digital Ground Pin
27 AOUTL-
O
Lch Negative Analog Output Pin
28 AOUTL+
O
Lch Positive Analog Output Pin
29 AOUTR-
O
Rch Negative Analog Output Pin
30 AOUTR+
O
Rch Positive Analog Output Pin
Note 1. All digital input pins (P/S, MCLK, LRCK, BICK, SDTI, CDTI/CKS0, CCLK/CKS1, CSN/DIF, DFS0, PDN,
DEM0 and SDFIL) must not be left floating.
No.
Pin Name
I/O
MS1258-E-01
-5-
2011/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
