HD49815TF Datasheet, PDF (13/25 Pages) Hitachi Semiconductor – Digital Camera Signal Processor

Built-in Functions and System Configuration
System Configuration
HD49815TF
Lens CCD HD49323AF-01
CDS/AGC+
10-bit ADC
HD49815TF
Input
line
memory
Color
processing
Luminance
processing
Zoom
processing
C-signal output
Y-signal output
SP1/2
H1, H2
TG
SSG
Micro-
processor
I/F
Encode
DAC
R-Y/B-Y
digital output
Y-signal
digital output
V.Driver
XV1 to 4
AGC gain setting
Initial setting resistor input and
AE, AWB detection data output
System
control
AE
(iris)
control
AWB
(white
balance)
control
8-bit single-chip microcomputer (H8 series)
Figure 2 System Configuration
System Description
1. CCD
The following lists the pixels of the CCD sensors that can be used with the HD49815TF. For other
pixel numbers, contact our sales dept.
512 (H) × 492 (V) NTSC
512 (H) × 582 (V) PAL
682 (H) × 492 (V) NTSC
681 (H) × 582 (V) PAL
2. CDS/AGC + 10-bit ADC
The HD49323AF-01 (manufactured by Hitachi) is recommended as an optimal CDS/AGC + 10-bit
ADC IC for the HD49815TF. Since the HD49323AF-01 provides a correlated double sampling circuit
that realizes high S/N and an automatic gain control (AGC) circuit that implements programmable
control of 0 dB to 34.7 dB, it enables a high-image-quality camera system when used in conjunction
with the HD49815TF.
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