CDB4955A Cirrus Logic Inc, CDB4955A Datasheet - Page 29

• 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

6. FILTER RESPONSES
DS278F6
Figure 16. 650 kHz Chrominance low-pass filter transfer
Figure 14. 1.3 MHz Chrominance low-pass filter transfer
-10
-15
-20
-25
-30
-10
-20
-30
-40
-50
-60
-70
-5
0
0
0
0
1
1
1.3 Mhz. filter frequency response
2
2
650 Khz. filter frequency response
characteristic
characteristic
frequency (Hz)
3
3
4
4
5
5
6
6
x 10
x 10
6
6
Figure 17. 650 kHz Chrominance low-pass filter transfer
Figure 15. 1.3 MHz Chrominance low-pass filter transfer
-0.1
-0.2
-0.3
-0.4
-0.5
-0.5
-1.5
-2.5
0
-1
-2
-3
0
0
0
2
2
characteristic (passband)
characterstic (passband)
frequency (Hz)
4
650 Khz. filter passband response
1.3 Mhz. filter passband response
4
6
6
CS4954 CS4955
8
8
10
10
12
12
x 10 5
x 10
5
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