ak4141 AKM Semiconductor, Inc., ak4141 Datasheet - Page 19

• Manufacturer Part Number: ak4141
• Description: Nicam/a2/eia-j Digital Stereo Decoder
• Manufacturer: AKM Semiconductor, Inc.

MSN
pin
H
L
■
The IDIF[1-0] and ODIF bit control the audio format for SCLK, SCLK4/5, LRCK, LRCK4/5, SDTI[1-5] and
SDTO[1-3]. ODIF bit and IDIF0 bit are ORed with DIF pin. When the TDM bit = “1”, the TDM mode is enabled. The
SRC inputs (SDTI [4-5]) ignore the TDM bit and operate in normal mode. In all modes the serial data is MSB-first, 2’s
complement format. The SDTO1-3 pins are clocked out on the falling edge of SCLK pin and the SDTI[1-3] pins are
latched on the rising edge of SCLK pin. The SDTI[4-5] pins are latched on the rising edge of SCLK[4-5] pins. In SRC
bypass mode, The SCLK[4-5] and LRCK[4-5] should be synchronized to LRCK.
1. Normal mode: TDM bit = “0”
MS0952-E-00
Audio Serial Interface Format
MSN
The TDM bit = “0” sets the AK4141 audio serial interface format to the normal mode. The IIS pin, DIF1-0 bits and
ODIF bit select following serial data format
pin
L
H
IIS
pin
H
H
L
L
IIS
pin
H
H
L
L
IDIF1
bit
0
1
0
1
0
1
0
1
ODIF
bit
0
1
x
0
1
x
IDIF0
bit
0
1
0
1
x
0
1
0
1
x
Table 8. Output Audio Data Format control
Table 7. Input Audio Data Format control
Mode
10
11
11
8
9
9
Mode
0
1
2
3
2
3
4
5
6
7
6
7
(Table
Output Audio Data
24bit Left Justified
24bit Left Justified
(register default)
(register default)
(register default)
(register default)
7,
- 19 -
24/16bit I2S
24/16bit I2S
24/16bit I2S
24/16bit I2S
Table
20bit Right Justified
24bit Right Justified
24bit Right Justified
16bit Right Justified
24bit Right Justified
24bit Right Justified
24bit Left Justified
24bit Left Justified
Format
Input Audio Data
(register default)
(register default)
(register default)
(register default)
24/16bit I2S
24/16bit I2S
24/16bit I2S
24/16bit I2S
8)
Format
L/R
H/L
L/H
L/H
H/L
L/H
L/H
LRCK
L/R
H/L
L/H
H/L
L/H
H/L
L/H
H/L
L/H
LRCK
I/O
O
I
I/O
(x: Don’t care.)
O
I
32fs or
32fs or
≥ 48fs
≥ 48fs
≥ 48fs
speed
64fs
(x: Don’t care.)
SCLK
32fs or
32fs or
≥ 16fs
≥ 48fs
≥ 48fs
≥ 48fs
≥ 48fs
≥ 48fs
speed
64fs
[AK4141]
BICK
2008/05
I/O
O
I
I/O
O
I