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參數(shù)資料
| 型號(hào)： | AD9840AJSTZRL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CCD SIGNAL PROC 10BIT 48LQFP |
| 標(biāo)準(zhǔn)包裝： | 2,000 |
| 類型： | CCD 信號(hào)處理器，10 位 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | 3 線串口 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 帶卷 (TR) |
–3–
REV. 0
AD9840A
Parameter
Min
Typ
Max
Unit
Notes
POWER CONSUMPTION
155
mW
MAXIMUM CLOCK RATE
20
MHz
CDS
Allowable CCD Reset Transient
1
500
mV
See Input Waveform in Note 1
Max CCD Black Pixel Amplitude
1
200
mV
Max Input Range before Saturation
1
1.0
V p-p
With 4 dB CDS Gain
Max Input Range before Saturation
1.5
V p-p
With –2 dB CDS Gain
Max Input Range before Saturation
0.5
V p-p
With 10 dB CDS Gain
Max Output Range
1.6
V p-p
At Any CDS Gain Setting
Gain Resolution
64
Steps
Gain Range (Two’s Complement Coding)
See Figure 15 for CDS Gain Curve
Min Gain (CDS Gain Register Code 32)
–2
dB
Medium Gain (CDS Gain Code 63)
4
dB
4 dB is Default with CDS Gain Disabled
Max Gain (CDS Gain Code 31)
10
dB
VARIABLE GAIN AMPLIFIER (VGA)
Max Input Range
1.6
V p-p
Max Output Range
2.0
V p-p
Gain Control Resolution
1024
Steps
Gain Monotonicity
Guaranteed
Gain Range
See Figure 13 for VGA Gain Curve
Low Gain (VGA Register Code 91)
2
dB
See Page 12 for Gain Equations
Max Gain (VGA Code 1023)
36
dB
BLACK LEVEL CLAMP
Clamp Level Resolution
256
Steps
Clamp Level
Measured at ADC Output
Min Clamp Level
0
LSB
Max Clamp Level
63.75
LSB
SYSTEM PERFORMANCE
Specifications Include Entire Signal Chain
Gain Accuracy, VGA Code 91 to 1023
–1.0
+1.0
dB
Use Equations on Page 12 to Calculate Gain
Peak Nonlinearity, 500 mV Input Signal
0.4
%
12 dB Gain Applied (4 dB CDS Gain)
Total Output Noise
0.25
LSB rms
AC Grounded Input, 6 dB Gain Applied
Power Supply Rejection (PSR)
40
dB
Measured with Step Change on Supply
POWER-UP RECOVERY TIME
Clocks Must Be Applied, as in Figures 8 and 9
From Fast Recovery Mode
0.1
ms
From Reference Standby Mode
1
ms
From Total Shutdown Mode
3
ms
From Power-Off Condition
15
ms
NOTES
1Input Signal Characteristics defined as follows, with 4 dB CDS gain:
1V MAX
INPUT
SIGNAL RANGE
200mV MAX
OPTICAL
BLACK PIXEL
500mV TYP
RESET
TRANSIENT
Specifications subject to change without notice.
CCD-MODE SPECIFICATIONS (T
MIN to TMAX, AVDD = DVDD = 3.0 V, fDATACLK = fSHP = fSHD = 40 MHz, unless otherwise noted.)
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