SDA9257 Infineon Technologies Corporation, SDA9257 Datasheet - Page 18

• Manufacturer Part Number: SDA9257
• Description: Clock SYNC Generator
• Manufacturer: Infineon Technologies Corporation

Semiconductor Group
The frequency response of the decimator filter stage 3 of the UV channels for an input
sampling rate of 6.75 MHz and an output sampling rate of 3.375 MHz is shown in
figure 13. The decimator stage 3 is active for 4:1:1 mode and can also be activated for
4:2:2 mode by
Figure 13
Frequency Response of the Chroma Decimator Stage 3
The Input Sampling Frequency
2.2
Three output data formats can be selected via
format corresponds to CCIR 656 (8-Bit bus at a data rate of 27 MHz), an other format
makes available Y and UV data separately on 2 parallel 8-Bit buses for Y and UV at a
data rate of 13.5 MHz each. The third format is a 12-Bit bus with 8 connections for Y and
4 connections for multiplexed UV data.
Data Output Formatter
-10
-20
-30
-40
-50
dB
I
10
2
0
C Bus (control bit UV3FIL).
0
0.1
f
S
is 6.75 MHz
0.2
18
I
2
C Bus (control Bits FORMAT). One
0.3
0.4
UED10461
f / f
S
0.5
SDA 9206
1999-02-10