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VSP2582
12-bit, 36 MSPS 1-Channel AFE for CCD Sensors
VSP2582
Not Recommended for New Designs
VSP2582
www.ti.com SBES002B–JUNE 2008–REVISED JUNE 2011
CCD ANALOG FRONT-END FOR DIGITAL CAMERAS
Checkfor Samples: VSP2582
1FEATURES DESCRIPTIONThe VSP2582isa complete mixed-signal processing
CCD Signal Processing: IC for digital cameras that provides correlated double
– 36-MHz Correlated Double Sampling (CDS) sampling (CDS) and analog-to-digital conversion
12-Bit Analog-to-Digital Conversion: (ADC) for the outputof charge-coupled device (CCD)
array. The CDS extracts video information of the
– 36-MHz Conversion Rate pixels from the CCD signal, and the ADC convertsit
– No Missing Codes Ensured toa digital signal. For varying illumination conditions,
• 78-dB Input-referred SNR (at CDS Gain0 dB) –9 dBto +35 dB very stable gain controlis provided.
This gain controlis linearin dB. Input signal clamping
• Programmable Black Level Clamping and offset correction of the input CDS are also
• Programmable Gain Amp (PGA): provided.
–9 dBto +35 dB, –3 dBto +9 dBOffset correctionis performed by an Optical Black
by Analog Front Gain (CDS)(OB) level calibration loop, and heldata calibrated
–6 dBto +26 dBby Digital Gain black level clamping for an accurate black level
• Portable Operation: reference. Additionally, the black level is quickly
– Low Voltage: 2.7Vto 3.6V recovered aftera gain change.
Low Power:85 mWat 3.0V and 36 MHz, The VSP2582is availableina QFN-36 package, and
1 mWin Standby Mode operates froma single +3 V supply. The RHH
QFN-36 Package package features an exposed thermal pad, resulting substantially improved thermal performance.
