ADV7184BSTZ Analog Devices Inc, ADV7184BSTZ Datasheet - Page 19

• Manufacturer Part Number: ADV7184BSTZ
• Description: IC DECODER VID SDTV MULTI 80LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7184BSTZ

• Applications: Projectors, Recorders, Security
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Resolution (bits): 10bit
• Adc Sample Rate: 54MSPS
• Power Dissipation Pd: 550mW
• No. Of Input Channels: 12
• Supply Voltage Range: 1.65V To 2V, 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Tv /: RoHS Compliant
• Input Format: Analogue
• Output Format: Digital
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Fast Blank and Contrast Reduction
Programmable Thresholds
The internal fast blank and contrast reduction signals are resolved
from the trilevel FB signal using two comparators, as shown in
Figure 11. To facilitate compliance with different input level
standards, the reference level to these comparators is program-
mable via FB_LEVEL [1:0] and CNTR_LEVEL [1:0]. The resulting
thresholds are given in Table 15.
FB_LEVEL [1:0], Address 0xF1 [5:4]
These bits control the reference level for the fast blank comparator.
CNTR_LEVEL [1:0], Address 0xF1 [7:6]
These bits control the reference level for the contrast reduction
comparator.
Table 15. Fast Blank and Contrast Reduction Programmable Threshold I
CNTR_ENABLE
0
0
0
0
1
1
1
1
FB_LEVEL [1:0]
00 (default)
01
10
11
00 (default)
01
10
11
CNTR_LEVEL [1:0]
XX
XX
XX
XX
00
01
10
11
Rev. A | Page 19 of 112
Fast Blanking Threshold (V)
1.4
1.6
1.8
2.0
1.6
1.8
2.0
2.2
Figure 11. Fast Blank and Contrast Reduction Programmable Threshold
2
C Controls
PROGRAMMABLE
THRESHOLDS
FB PIN
Contrast Reduction Threshold (V)
n/a
n/a
n/a
n/a
0.4
0.6
0.8
2.0
FAST BLANK
COMPARATOR
CONTRAST
REDUCTION
COMPARATOR
+
–
–
+
FAST BLANK
C
ADV7184