CDB4955A Cirrus Logic Inc, CDB4955A Datasheet - Page 31

• Manufacturer Part Number: CDB4955A
• Description: EVALUATION BOARD FOR CS4955A
• Manufacturer: Cirrus Logic Inc

Specifications of CDB4955A

• Main Purpose: Video, Video Processing
• Embedded: Yes, Other
• Utilized Ic / Part: CS4955
• Primary Attributes: NTSC/PAL Digital Video Encoder
• Secondary Attributes: Graphical User Interface, RS-232 Interface
• Operating Frequency: 27 MHz
• Interface Type: RS-232, Composite, RGB, S-Video
• Operating Supply Voltage: 3.3 V, 5 V
• Software: Software Included
• Silicon Manufacturer: Cirrus Logic
• Silicon Core Number: CS4955
• Kit Application Type: Audio / Video / TV
• Application Sub Type: Encoder / Decoder
• Kit Contents: Evaluation Board
• Rohs Compliant: No
• For Use With/related Products: CS4954
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

DS278F6
Figure 22. Chroma Interpolator for RGB Datapath when
Figure 24. Chroma Interpolator for RGB Datapath when
-0.5
-1.5
-2.5
0.5
-0.5
-1.5
-2.5
-1
-2
-3
0.5
1
0
-1
-2
-3
1
0
0
0
RGB datapath filter when rgb_bw = 1 (Reduced Bandwidth) (-3 dB)
2
rgb_bw=1 (Reduced Bandwidth)
2
RGB datapath filter for rgb_bw = 0 (-3 dB)
4
4
rgb_bw=0 -3 dB
Frequency (MHz)
Frequency (MHz)
6
6
8
8
10
10
12
12
Figure 23. Chroma Interpolator for RGB Datapath when
Figure 25. Chroma Interpolator for RGB Datapath when
-10
-15
-20
-25
-30
-35
-40
-45
-5
0
-10
-15
-20
-25
-30
-35
-40
0
-5
0
0
2
RGB datapath filter when rgb_bw = 1 (Reduced Bandwidth)
rgb_bw=1 (Reduced Bandwidth)
5
rgb_bw=0 (Full Scale)
4
Chroma Output Interpolator Full Scale
Frequency (MHz)
10
Frequency (MHz)
6
CS4954 CS4955
8
15
10
20
12
25
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