Philips Semiconductors
Camera Digital Signal Processor
(CAMDSP)
Preliminary specification
SAA9750H
FEATURES
• Y/C separator for mosaic filter colour CCD which can be
used with PAL or NTSC CCDs with horizontal resolution
of 510, 670, 720 or 768 pixels
• Line sequential colour processing (R−Y) and (B−Y)
• 9 bit input signal (the internal processing is 10-bit)
• Digital feedback clamp control for Y/C separation
• Two 768 × 9 line memories for Y/C separation
• Aperture correction using phase linear filters
• Coring of LOW level signals to reduce noise
• Colour encoder in accordance with the PAL or NTSC
system. Colour subcarrier is made by a discrete time
oscillator (DTO) operating on system clock
• Slew rate controlled outputs for reduction of digital noise
• RGB inputs for title mix
• High accuracy 8 bit DAC outputs for luminance and
chrominance signals
• Sync Signal Generator (SSG) to generate all necessary
timing signals
• Serial interface for microprocessor control of CAMDSP
settings
• Y and C signals accessible to incorporate digital
features
• Including digital feature functions (mosaic, sepia,
solarization, slice and negative/positive inversion).
GENERAL DESCRIPTION
The Camera Digital Signal Processor (CAMDSP) is
intended for use with a mosaic filter colour CCD. The IC
generates luminance and chrominance signals from the
CCD signal. The device consists of a luminance and colour
separator employing two 768 × 9 line memories, a
PAL/NTSC encoder, a dual 8-bit video DAC, a Sync Signal
Generator (SSG) and a simple serial interface to control
many settings.
QUICK REFERENCE DATA
SYMBOL
VDDA1
VDDA2
VDDD1
VDDD2
VDDD3
VIH
VIL
VOH
VOL
Tamb
PARAMETER
Y-DAC analog supply voltage (pin 1)
C-DAC analog supply voltage (pin 2)
digital supply voltage (pin 41)
digital supply voltage (pin 53)
digital supply voltage (pin 65)
HIGH level digital input voltage
LOW level digital input voltage
HIGH level digital output voltage
LOW level digital output voltage
operating ambient temperature
MIN.
TYP.
2.7
3.0
2.7
3.0
2.7
3.0
2.7
3.0
2.7
3.0
0.7VDDD −
0
−
VDDD − 0.5 −
−
−
−20
−
MAX.
3.3
3.3
3.3
3.3
3.3
VDDD
0.3VDDD
−
0.5
+70
UNIT
V
V
V
V
V
V
V
V
V
°C
ORDERING INFORMATION
TYPE
NUMBER
SAA9750H
PACKAGE
NAME
DESCRIPTION
LQFP80 plastic low profile quad flat package; 80 leads; body 12 × 12 × 1.4 mm
VERSION
SOT315-1
1996 Feb 16
2