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AD9844A

Features: 20 MSPS Correlated Double Sampler (CDS)4 dB 6 dB Variable CDS Gain with 6-Bit Resolution2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)Low Noise Clamp CircuitsAnalog Preblanking Function12-Bit 20 MSPS A/D ConverterAuxiliary Inputs with VGA and Input Clamp3-Wire Serial Digital Interfac...

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SeekIC No. : 004273522 Detail

AD9844A: Features: 20 MSPS Correlated Double Sampler (CDS)4 dB 6 dB Variable CDS Gain with 6-Bit Resolution2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)Low Noise Clamp CircuitsAnalog Preblanking Functio...

AD9844A Data Sheet

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Part Number:
AD9844A
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

20 MSPS Correlated Double Sampler (CDS)
4 dB  6 dB Variable CDS Gain with 6-Bit Resolution
2 dB to 36 dB 10-Bit Variable Gain Amplifier (VGA)
Low Noise Clamp Circuits
Analog Preblanking Function
12-Bit 20 MSPS A/D Converter
Auxiliary Inputs with VGA and Input Clamp
3-Wire Serial Digital Interface
3 V Single Supply Operation
Low Power: 65 mW @ 2.7 V Supply
48-Lead LQFP Package


Application

Digital Still Cameras
Digital Video Camcorders
PC Cameras


Pinout

Connection Diagram


Specifications


Parameter
 With RespectTo Min Max Unit
AVDD1, AVDD2
DVDD1, DVDD2
DRVDD
Digital Outputs
SHP, SHD, DATACLK
CLPOB, CLPDM, PBL
SCK, SL, SDATA
VRT, VRB, CMLEVEL
BYP1-4, CCDIN
Junction Temperature
Lead Temperature
(10 sec)		 AVSS
DVSS
DRVSS
DRVSS
DVSS
DVSS
DVSS
AVSS
AVSS		 0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3		 +3.9
+3.9
+3.9
DRVDD + 0.3
DVDD + 0.3
DVDD + 0.3
DVDD + 0.3
AVDD + 0.3
AVDD + 0.3
150
300		 V
V
V
V
V
V
V
V
V
°C
°C



Description

The AD9844A is a complete analog signal processor for CCD applications. It features a 20 MHz single-channel architecture designed to sample and condition the outputs of interlaced and progressive scan area CCD arrays. The AD9844A's signal chain consists of an input clamp, correlated double sampler (CDS), digitally controlled variable gain amplifier (VGA), black level clamp, and 12-bit A/D converter. Additional input modes are provided for processing analog video signals.

The internal registers are programmed through a 3-wire serial digital interface. Programmable features include gain adjustment, black level adjustment, input configuration, and power-down modes.

The AD9844A operates from a single 3 V power supply, typi-cally dissipates 78 mW, and is packaged in a 48-lead LQFP.




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