10-Bit / 27 MSPS Camera Signal Processor
LM98501 10-Bit, 27 MSPS Camera Signal Processor
February 2000
LM98501 10-Bit, 27 MSPS Camera Signal Processor
General ...
Description
LM98501 10-Bit, 27 MSPS Camera Signal Processor
February 2000
LM98501 10-Bit, 27 MSPS Camera Signal Processor
General Description
The LM98501 is a CCD signal processor for electronic cameras. The processor provides a common interface to a number of different image sensors including CCD, CMOS, and CIS. Correlated double sampling reduces kTC noise from the image signal. A fast, temperature stable, 8-bit digitally programmable gain amplifier enables pixel-rate white-balancing. An auxiliary input is provided, allowing for the selection of an external signal, useful for electronic titling and video overlay. The 10-bit A/D converter preserves the image quality with excellent noise performance. The LM98501 also includes the supporting functions of digital black level clamp and power down, ideally suited for portable video applications. This low-power processor is a natural choice for the most demanding imaging systems.
Features
n n n n n n n n n +3V single power supply Low power CMOS design 4-wire serial interface 2.5V data output voltage swing No missing codes AUX input with input clamp and programmable gain Four color gain and offset registers Digital black level clamp Small 48-lead LQFP package
Key Specifications
j Maximum Input Level j CDS Sampling Rate j PGA Gain Steps j PGA Gain Range j ADC Resolution j ADC Sampling Rate j *Signal-to-Noise Ratio j Power Dissipation AV+ = DV+ = DV+ I/O = 3.0V j Operating Temperature
Applications
n n n n n n n n Digital still camera Digital...
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