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ADV7842 Fiches technique(PDF) 8 Page - Analog Devices

No de pièce ADV7842
Description  Dual HDMI Fast Switching Receiver with 12-Bit, 170 MHz Video and Graphics igitizer and 3D Comb Filter Decoder
Download  28 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

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ADV7842
Rev. B | Page 8 of 28
ANALOG SPECIFICATIONS
Table 3.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
CLAMP CIRCUITRY1
Input Impedance
Clamps switched off
10
Analog (AIN1 − AIN12)
ADC Midscale (CML)
0.91
V
ADC Full-Scale Level
CML + 0.55
V
ADC Zero-Scale Level
CML − 0.55
V
ADC Dynamic Range
1.1
V
Clamp Level (When Locked)
Component input, Y signal
CML − 0.12
V
Component input, Pr signal
CML
V
Component input, Pb signal
CML
V
PC RGB input (R, G, B signals)
CML − 0.12
V
CVBS input
CML − 0.205
V
SCART RGB input (R, G, B signals)
CML − 0.205
V
S-Video input (Y Signal)
CML − 0.205
V
S-Video input (C Signal)
CML
V
Large Clamp Source Current
SDP only
0.3
mA
Large Clamp Sink Current
SDP only
0.4
mA
Fine Clamp Source Current
SDP only
9
μA
Fine Clamp Sink Current
SDP only
8
μA
1
Specified for external clamp capacitor of 100 nF.
VIDEO SPECIFICATIONS
Table 4.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
NONLINEAR SPECIFICATIONS
Differential Phase
DP
CVBS input (modulated five-step)
0.6
Degrees
Differential Gain
DG
CVBS input (modulated five-step)
0.8
%
Luma Nonlinearity
LNL
CVBS input (modulated five-step)
0.9
%
NOISE SPECIFICATIONS
Measured at 27 MHz LLC
SNR Unweighted
Luma ramp
63
dB
SNR Unweighted
Luma flat field
64
dB
Analog Front-End Crosstalk
60
dB
LOCK TIME SPECIFICATIONS (SDP)
Horizontal Lock Range
±5
%
Vertical Lock Range
40
70
Hz
Subcarrier Lock Range
fSC
±0.8
kHz
Color Lock-In Time
60
Lines
Sync Depth Range1
20
200
%
Color Burst Range
1
200
%
Vertical Lock Time
300
ms
Horizontal Lock Time
100
Lines
CHROMA SPECIFICATIONS (SDP)
Chroma Amplitude Error
0.9
%
Chroma Phase Error
0.3
Degrees
Chroma Luma Intermodulation
0.3
%
1
Nominal synchronization depth is 300 mV at 100% of the synchronization depth range.


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