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SAA8113HL
Information as of 2000-08-26
SAA8113HL; Digital PC-camera signal processor
The SAA8113HL is a 2nd generation camera Digital Signal Processor (DSP) designed for low-cost DTV applications. It integrates the DSP
core, the Pulse Pattern Generator (PPG), the 80C51 microcontroller and the VDAC in one IC. It is the successor of the SAA8110G,
dedicated to analog output cameras.
The SAA8113HL must be applied together with an analog front-end that includes a Correlated Double Sampling (CDS), an Automatic Gain
Control (AGC) and an Analog-to-Digital Converter (ADC). This may be the TDA8786 or the TDA8784.
The PPG generates the timing pulses to drive medium resolution PAL/NTSC complementary mosaic CCD sensors (512 x 492 NTSC and
512 x 582 PAL).
The input of the DSP is 10 bits with a maximum pixel frequency equal to 9.66 MHz. The DSP core processes this sensor signal to a
standard video output signal. The SAA8113HL output is an analog CVBS video signal.
The microcontroller provides the settings for the IC registers from EEPROM at power-up or reset and controls the AWB, AE and AOB
loops. It also provides a hardware IC-bus interface, so the microcontroller can be used as an IC-bus slave. The software code is
embedded in an internal ROM but it is also possible to use a combined data and address bus, connected to an external program EPROM.
A built-in power management function allows the power dissipation to be optimized.
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High precision digital processing with 10-bit input
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Medium resolution complementary mosaic CCD sensors PAL or NTSC (interlaced mode only)
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Internal PPG, dedicated to SHARP, TOSHIBA and PANASONIC sensors
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Integrated microcontroller (80C51) for control loops Auto Optical Black (AOB), Auto White Balance (AWB) and Auto Exposure (AE)
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Black offset preprocessing
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