CS4954-CQZ Cirrus Logic Inc, CS4954-CQZ Datasheet - Page 29

• Manufacturer Part Number: CS4954-CQZ
• Description: IC VIDEO ENCODER NTSC/PAL 48TQFP
• Manufacturer: Cirrus Logic Inc
• Type: Video Encoderr

Specifications of CS4954-CQZ

• Package / Case: 48-TQFP, 48-VQFP
• Voltage - Supply, Analog: 3.15 V ~ 5.25 V
• Voltage - Supply, Digital: 3.15 V ~ 5.25 V
• Mounting Type: Surface Mount
• Operating Supply Voltage: 3.3 V / 5 V
• Supply Current: 70 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Resolution: 10 bit
• Snr: 70 dB
• Input Format: Digital
• Output Format: Analog
• Supply Voltage Range: 3.15V To 3.45V
• Operating Temperature Range: -40°C To +85°C
• Tv / Video Case Style: TQFP
• No. Of Pins: 48
• Tv / Video Type: Encoder
• Rohs Compliant: Yes
• Filter Terminals: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: CDB4955A - EVALUATION BOARD FOR CS4955A
• Applications: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1682

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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