HD49340F Renesas Electronics Corporation., HD49340F Datasheet - Page 20

• Manufacturer Part Number: HD49340F
• Description: Cds/pga & 10-bit A/d Converter
• Manufacturer: Renesas Electronics Corporation.

HD49340F/HF
Notice for Use
1. Careful handling is necessary to prevent damage due to static electricity.
2. This product has been developed for consumer applications, and should not be used in non-consumer applications.
3. As this IC is sensitive to power line noise, the ground impedance should be kept as small as possible. Also, to
4. Common connection of AV
5. If a noise filter is necessary, make a common connection after passage through the filter, as shown in the figure
6. Connect AV
7. When V
8. No Connection (NC) pins are not connected inside the IC, but it is recommended that they be connected to power
9. To ensure low thermal resistance of the package, a Cu-type lead material is used. As this material is less tolerant of
10. The infrared reflow soldering method should be used to mount the chip. Note that general heating methods such as
11. Serial communication should not be performed during the effective video period, since this will result in degraded
12. At power-on, automatic adjustment of the offset voltage generated from PGA, ADC, etc., must be implemented in
Rev.1.0, Apr 20, 2004, page 20 of 22
prevent latchup, a ceramic capacitor of 0.1 µF or more and an electrolytic capacitor of 10 µF or more should be
inserted between the ground and power supply.
the phase difference should be 0.3 V or less at power-on and 0.1 V or less during operation.
below.
set grounds, connect to the analog system.
supply or ground pins or left open to prevent crosstalk in adjacent analog pins.
bending than Fe-type lead material, careful handling is necessary.
solder dipping cannot be used.
picture quality. Also, use of dedicated ports is recommended for the SCK and SDATA signals used in the
HD49330AF. If ports are to be shared with another IC, picture quality should first be thoroughly checked.
accordance with the power-on operating sequence (see page 19).
Analog
+3.0V
DD
AV
AV
is specified in the data sheet, this indicates AV
SS
DD
SS
HD49340F/HF
and DV
Noise filter
SS
off-chip using a common ground. If there are separate analog system and digital system
DD
DV
DV
and DV
DD
SS
DD
should be made off-chip. If AV
Digital
+3.0V
DV
DV
DD
SS
HD49340F/HF
Noise filter
DD
and DV
AV
AV
DD
DD
SS
.
DD
and DV
0.01 F
DD
are isolated by a noise filter,
Example of noise filter
100 H
0.01 F