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參數(shù)資料
| 型號： | TLC8044FN |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQCC68 |
| 封裝： | PLASTIC, LCC-68 |
| 文件頁數(shù)： | 18/32頁 |
| 文件大小： | 477K |
| 代理商： | TLC8044FN |
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TLC8044
12-BIT ANALOG-TO-DIGITAL INTERFACE FOR
CHARGE-COUPLED DEVICE IMAGE SENSORS FOR SCANNERS
SLAS128 – JUNE 1997
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
Table 6. Control Bit Descriptions
REGISTER
BITS
DEFAULT
DESCRIPTION
Setup
Register 1
ENADC
1
ADC standby control:
0 = standby
1 = active
BICLIP
0
Bipolar clip enable:
0 = unipolar clip
1 = bipolar clip
ADCMX
0
ADC MUX control:
0 = normal operation
1 = ADC output multiplexed to OP
MONO
0
Mono/color select:
0 = color operation
1 = monochrome operation
DEFPG
0
Select default pixel gain:
0 = external pixel gain
1 = default (internal)
DEFPO
0
Select default pixel offsets:
0 = external pixel offsets
1 = default (internal)
DNS
0
Select differential/single-ended mode:
0 = single ended
1 = differential
INVADC
0
ADC output polarity:
0 = noninverted
1 = inverted
CDS
0
Select correlated double sampling mode:
0 = normal sampling
1 = CDS mode
Setup
Register 2
POSCL1 0
00
Pixel offset scaling:
00 =
±0.5 fs
01 =
±025 f
POSCL1, 0
00
01 =
±0.25 fs
10 =
±0.125 fs
11 =
±0.0625 fs
WLSEL1 0
10
Output word length select:
00 = 8 bits (OP0 - OP7 contains output word)
01 = 10 bits (OP0 OP9 contains output word)
WLSEL1, 0
10
01 = 10 bits (OP0 - OP9 contains output word)
10 = 12 bits (OP0 - OP11 contains output word)
11 = 16 bits (OP0 - OP15 contains output word)
THSEL1 0
11
Threshold detector operating mode:
00 = Operating on red channel only
01=Operating on green channel only
THSEL1, 0
11
01 = Operating on green channel only
10 = Operating on blue channel only
11 = Three channel
CDSREF1 0
01
CDS mode reset timing adjust:
00 = Advance 1 MCLK period
01 = Normal
CDSREF1, 0
01
01 = Normal
10 = Retard 1 MCLK period
11 = Retard 2 MCLK periods
CHAN1 0
00
Monochrome mode channel select:
00 = Red channel
01 = Green channel
CHAN1, 0
00
01 = Green channel
10 = Blue channel
11 = Not used
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