VSP2230 Datasheet | Burr-Brown

FEATURES D CCD Signal Processing D D D D - Correlated Double Sampling (CDS) - Programmable Black Level Clamping Programmable Gain Amplifier (PGA) - - 6-d B to 42-d B Gain Ranging 10-Bit Digital Data Output - Up to 36-MHz Conversion Rate - No Missing Codes 76-d B Signal-to-Noise Ratio Portable Operation - Low Voltage: 2.7 V to 3.6 V - Low Power: 120 m W (typ) at 3.0 V - Standby Mode: 6 m W DESCRIPTION The VSP2230 is a plete mixed-signal processing IC for digital cameras that provides signal conditioning and analog-to-digital conversion for the output of a CCD array. The primary CCD channel provides correlated double sampling (CDS) to extract the video information from the pixels, a - 6-d B to 42-d B gain with digital control for varying illumination conditions, and black level clamping for an accurate black level reference. Input signal clamping and offset correction of the input CDS is also performed. The stable gain control is linear in d B. Additionally, the black level is quickly recovered after gain change. The VSP2230Y is pin-to-pin patible with the VSP2260Y (10 bit, 20 MHz) one-chip product. The VSP2230Y is available in a 48-pin LQFP package and operates from a single 3-V/3.3-V supply. VSP2230 block diagram CLPDM SHP SHD SLOAD SCLK SDATA RESET ADCCK DRVDD VCC Serial Interface Input Clamp Timing Control B(0- 9) Analog-to-Digital Converter Output Latch 10-Bit Digital Output CCDIN Correlated Double Sampling (CDS) Programmable Gain Amplifier - 6 to 42 d B (PGA) CCD Output Signal Preblanking Optical Black (OB) Level Clamping Reference Voltage Generator PBLK CPLOB BYPP2 BYP BYPM REFN CM REFP DRVGND GNDA Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments...