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参数资料
| 型号： | TMS57014ADWBLE |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | DAC |
| 英文描述： | DUAL, SERIAL INPUT LOADING, 18-BIT DAC, PDSO28 |
| 封装： | PLASTIC, SOIC-28 |
| 文件页数： | 15/17页 |
| 文件大小： | 250K |
| 代理商： | TMS57014ADWBLE |
TMS57014A
DUAL AUDIO DIGITAL-TO-ANALOG CONVERTER
SLAS077D – SEPTEMBER 1993 – REVISED NOVEMBER 1995
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
register set
Table 2 contains the register-set selection. Tables 3 and 4 list the bit functions.
Table 2. Register-Set Selection
BITS
DESCRIPTION
15
14
DESCRIPTION
0
Attenuation register
0
1
System register
1
x
Invalid condition
Bit 15 should always be set to 0 when writing
data for proper operation.
Table 3. Attenuation-Register Bit Functions
BITS
FUNCTION
13
12
11
10 – 0
FUNCTION
0
—
De-emphasis off
1
—
De-emphasis on
—
0
—
Channel mute off
—
1
—
Channel mute on
—
0
—
Bit 11 must be low
—
0
Digital attenuation, mute
—
1
Digital attenuation, – 60.2 dB§
—
2
Digital attenuation, – 54.2 dB§
—
3
Digital attenuation, – 50.7 dB§
—
. . .
—
1FF
Digital attenuation, – 6.04 dB§
—
200
Digital attenuation, – 6.02 dB§
—
201
Digital attenuation, – 6.00 dB§
—
. . .
—
3FF
Digital attenuation, – 0.01 dB§
—
400
Digital attenuation, 0.00 dB§
Default value = 0400h
§ The attenuation values shown are typical values. Refer to the digital
attenuation section for a description of the attenuation function.
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