AK4141 Datasheet, PDF (4/96 Pages) Asahi Kasei Microsystems – NICAM/A2/EIA-J Digital Stereo Decoder

[AK4141]
ピン／機能
No. Pin Name I/O Function
PLL Loop Filter 2 Pin
1
FILT2
O
A 0.68F capacitor should be connected to GND5 externally.
Hi-Z when PDN Pin = “L”.
Audio Data Format Select Pin. ORed with ODIF bit, ORed with IDIF0 bit.
2
IIS
I
“L”: 24bit Left justified if IDIF0 bit = “0”(default)
“H”: 24/16 bit IIS
3
LRCK5
I Input Channel Clock 5 Pin
4
SCLK5
I Audio Serial Data Clock 5 Pin
5
SDTI5
I Audio Serial Data Input 5 Pin
6
LRCK4
I Input Channel Clock 4 Pin
7
SCLK4
I Audio Serial Data Clock 4 Pin
8
SDTI4
I
Audio Serial Data Input 4 Pin
Should be synchronized to LRCK and SCLK when SRC is not used.
9
SDTI3
I Audio Serial Data Input 3 Pin
10
SDTI2
I Audio Serial Data Input 2 Pin
11
SDTI1
I Audio Serial Data Input 1 Pin
12
A4M50
I
Decoder Standard Preference Control 0 Pin for 4.5MHz Carrier
This pin is internally XORed with A4M50 bit (default = “1”).
13
A4M51
I
Decoder Standard Preference Control 1 Pin for 4.5MHz Carrier
This pin is internally XORed with A4M51 bit (default = “1”).
14
SCL
I Control Data Clock Pin for I2C bus
Power-Down Mode & Reset Pin
15
PDN
I
When “L”, the AK4141 is powered-down, all registers are reset. And then all
digital output pins go “L”. The AK4141 must be reset once upon power-up.
16
MCKI
I Master Clock Input Pin
17
TXIN
I
S/PDIF Input Pin
For through output. No Input Amplifier integrated.
18
DVDD
- Digital Power Supply Pin, 1.7V~1.9V
19
GND1
- Ground Pin, 0V
20
GND2
- Ground Pin, 0V
21
TVDD
- I/O Buffer Power Supply Pin, 1.7V~3.6V
22
SDA
I/O Control Data Pin for I2C bus
23
A4M52
I
Decoder Standard Preference Control 2 Pin for 4.5MHz Carrier
This pin is internally ORed with A4M52 bit (default = “0”).
24
TXOUT
O S/PDIF Output pin. Outputs “L” when PDN Pin = “L”.
25
MCKO
O Master Clock Output Pin. Outputs “L” when PDN Pin = “L”.
Audio Serial Data Clock Pin.
26
SCLK
I/O
Outputs “L” when PDN Pin = “L” and MSN Pin = “H”.
Hi-Z when PDN Pin = “L” and MSN Pin = “L”.
Input Channel Clock Pin
27
LRCK
I/O
Outputs “L” when PDN Pin = “L” and MSN Pin = “H”.
Hi-Z when PDN Pin = “L” and MSN Pin = “L”.
28
SDTO3
O
Audio Serial Data Output 3 Pin
Outputs “L” when PDN Pin = “L”.
29
SDTO2
O
Audio Serial Data Output 2 Pin
Outputs “L” when PDN Pin = “L”.
30
SDTO1
O
Audio Serial Data Output 1 Pin
Outputs “L” when PDN Pin = “L”.
MS0952-J-03
-4-
2013/12