AK4145 Datasheet, PDF (21/27 Pages) Asahi Kasei Microsystems – Digital BTSC Stereo Encoder

[AK4145]
■ Register Definitions
Control 1
Addr
00H
Register Name
Control 1
R/W
Default
D7
D6
D5
D4
D3
VCLK DIF2 DIF1 DIF0
0
R/W R/W R/W R/W RD
0
0
1
1
0
D2
D1
D0
0 SMUTE RSTN
RD R/W R/W
0
1
0
RSTN: Internal timing reset control
0: Reset. Initialize the device except register settings (default).
1: Normal Operation
SMUTE: Soft Mute Control
0: Soft Mute disabled (Normal Operation).
1: Soft Mute enabled (default).
DIF2-0: Audio data interface formats (Table 5)
Default: “011”, I²S
VCLK: Sync Source Control
0: Composite video (default).
1: 27MHz clock
Control 2
Addr
01H
Register Name
Control 2
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
VOLC 0
FS1 FS0
0
DEM
0
STR
R/W RD R/W R/W RD R/W RD R/W
1
0
1
0
0
0
0
1
STR: BTSC Stereo/MONO Output Control
0: MONO
1: BTSC Stereo Composite (default)
DEM: De-emphasis Response
0: Disable (default)
1: Enable
FS1-0: Sampling speed control
00: 32kHz
01: 44.1kHz
10: 48kHz (default)
11: Reserved
VOLC: Lch/Rch Volume Common Control Enable
0: Independent Control. L7-0 and R7-0 bits control Lch and Rch independently.
1: Common Control (default). L7-0 bits control both Lch and Rch. R7-0 bits are ignored.
MS0982-E-01
- 21 -
2010/09