參數(shù)資料
型號: HD49334A
廠商: Renesas Technology Corp.
英文描述: CDS/PGA & 10-bit A/D Converter
中文描述: 的CDS /美國PGA
文件頁數(shù): 20/23頁
文件大?。?/td> 242K
代理商: HD49334A
HD49334AF/AHF
Rev.1.0, Apr 20, 2004, page 20 of 22
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
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.
4. Common connection of AV
DD
and DV
DD
should be made off-chip. If AV
DD
and DV
DD
are isolated by a noise filter,
the phase difference should be 0.3 V or less at power-on and 0.1 V or less during operation.
5. If a noise filter is necessary, make a common connection after passage through the filter, as shown in the figure
below.
HD49334AF/AHF
AV
SS
DV
SS
AV
DD
DV
DD
Noise filter
Analog
+3.0V
HD49334AF/AHF
DV
SS
AV
SS
DV
DD
AV
DD
100
μ
H
0.01
μ
F
Noise filter
Example of noise filter
Digital
+3.0V
0.01
μ
F
6. Connect AV
SS
and DV
SS
off-chip using a common ground. If there are separate analog system and digital system
set grounds, connect to the analog system.
7. When V
DD
is specified in the data sheet, this indicates AV
DD
and DV
DD
.
8. No Connection (NC) pins are not connected inside the IC, but it is recommended that they be connected to power
supply or ground pins or left open to prevent crosstalk in adjacent analog pins.
9. To ensure low thermal resistance of the package, a Cu-type lead material is used. As this material is less tolerant of
bending than Fe-type lead material, careful handling is necessary.
10. The infrared reflow soldering method should be used to mount the chip. Note that general heating methods such as
solder dipping cannot be used.
11. Serial communication should not be performed during the effective video period, since this will result in degraded
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.
12. At power-on, automatic adjustment of the offset voltage generated from PGA, ADC, etc., must be implemented in
accordance with the power-on operating sequence (see page 19).
相關PDF資料
PDF描述
HD49334AF CDS/PGA & 10-bit A/D Converter
HD49335F CDS/PGA AND 10-bit A/D TG Converter
HD49335HF CDS/PGA AND 10-bit A/D TG Converter
HD49338F CDS/PGA & 12-bit A/D Converter
HD49338HF CDS/PGA & 12-bit A/D Converter
相關代理商/技術參數(shù)
參數(shù)描述
HD49334AF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 10-bit A/D Converter
HD49334AHNP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 10-bit A/D Converter
HD49334ANP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA & 10-bit A/D Converter
HD49335F 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA AND 10-bit A/D TG Converter
HD49335HF 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:CDS/PGA AND 10-bit A/D TG Converter