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參數(shù)資料
| 型號： | 5962F0520601VZC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 2-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CQFP128 |
| 封裝： | CERAMIC, QFP-128 |
| 文件頁數(shù)： | 26/44頁 |
| 文件大小： | 1337K |
| 代理商： | 5962F0520601VZC |
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DES Enable
Addr: Dh (1101b)
W only (0x3FFF)
D15
D14
D13
D12
D11
D10
D9
D8
DEN
ACP
1
D7
D6
D5
D4
D3
D2
D1
D0
1
Bit 15
DES Enable. Setting this bit to 1b enables the
Dual Edge Sampling mode. In this mode the
ADCs in this device are used to sample and
convert the same analog input in a time-
interleaved manner, accomplishing a
sampling rate of twice the input clock rate.
When this bit is set to 0b, the device operates
in the normal dual channel mode.
POR State: 0b
Bit 14
Automatic Clock Phase Control. (ACP) Setting
this bit to 1b enables the Automatic Clock
Phase Control. In this mode the DES Coarse
and Fine manual controls are disabled. A
phase detection circuit continually adjusts the
I and Q sampling edges to be 180 degrees out
of phase. When this bit is set to 0b, the sample
(input) clock delay between the I and Q
channels is set manually using the DES
Coarse and Fine Adjust registers. (See
Section 2.4.5 for important application
information) Using the ACP Control option
is recommended over the manual DES
settings
.
POR State: 0b
Bits 13:0
Must be set to 1b
1.4.1 Note Regarding Extended Mode Offset Correction
When using the I or Q channel Offset Adjust registers, the
following information should be noted.
For offset values of +0000 0000 and -0000 0000, the actual
offset is not the same. By changing only the sign bit in this
case, an offset step in the digital output code of about 1/10th
of an LSB is experienced. This is shown more clearly in the
Figure below.
www.national.com
32
ADC08D1000QML
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