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参数资料
| 型号： | TCM320AC46CDWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封装： | SOIC-20 |
| 文件页数： | 18/19页 |
| 文件大小： | 249K |
| 代理商： | TCM320AC46CDWR |
TCM320AC46
GENERALPURPOSE AUDIO INTERFACE FOR DSP
SLWS001 D4091, JUNE 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
8
Table 2. Receive Data Bit Definitions
BIT NO.
COMPANDED MODE
LINEAR MODE
0
CD7
LD12
1
CD6
LD11
2
CD5
LD10
3
CD4
LD9
4
CD3
LD8
5
CD2
LD7
6
CD1
LD6
7
CD0
LD5
8
LD4
9
LD3
A
LD2
B
LD1
C
LD0
D
V2
E
V1
F
V0
relationship between data word and frame sync
Volume control and other control bits always follow the PCM data in time:
Command Word
Companded Mode:
Linear Data
Volume Control
Linear Mode:
Companded Data
V2
LD0
LD1
LD2
LD3
LD4
LD12
LD11 LD10 LD9
LD8
LD7
LD6
LD5
CD0
CD1
CD2
CD3
CD4
CD5
CD6
CD7
V1
V0
MSB
(sign bit)
LSB
MSB
(sign bit)
LSB
Time
Variable Data Rate
Fixed Data Rate
FSX/FSR
Bit No.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
where:
CD7 CD0 = Data word when in companded mode
= Unused bits in companded mode
V2, V1, V0 = Volume (attenuation control)
000 = maximum volume, 3 dBm0
111 = minimum volume, 18 dBm0
LD12 LD0 = Data word when in linear mode
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