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GS2961A Datasheet, PDF (21/104 Pages) Gennum Corporation – Ancillary data extraction | |||
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Table 2-4: AC Electrical Characteristics (Continued)
Guaranteed over recommended operating conditions unless otherwise noted.
Parameter
Symbol
Conditions
Min Typ
Serial Output Fall Time
20% ~ 80%
Serial Output Jitter with
loop-through mode
Serial Output Duty Cycle
Distortion
Synchronous lock time
Asynchronous lock time
Lock time from power-up
tfSDO
â
â
â
tOJ
SMPTE colour bar 3G,
â
â
150m
SMPTE colour bar HD,
â
â
250m
SMPTE colour bar SD,
â
â
480m
DCDSDD
3G
HD
â
10
â
10
SD
â
20
â
â
â
â
â
â
0.1
â
â
After 20 minutes at
-20°C
â
â
GSPI
GSPI Input Clock Frequency
fSCLK
â
â
GSPI Input Clock Duty Cycle
DCSCLK
40
50
GSPI Input Data Setup Time
â
1.5
â
GSPI Input Data Hold Time
â
1.5
â
GSPI Output Data Hold Time
â
1.5
â
CS low before SCLK rising edge
â
50% levels
1.5
â
3.3V or 1.8V operation
Time between end of command
â
37.1
â
word (or data in Auto-Increment
mode) and the first SCLK of the
following data word - write cycle
Time between end of command
â
word (or data in Auto-Increment
mode) and the first SCLK of the
following data word - read cycle
148.4
â
CS high after SCLK falling edge
â
50% levels
37.1
â
3.3V or 1.8V operation
Max
180
100
100
470
â
â
â
25
20
5
60
60
â
â
â
â
â
â
â
Units
ps
ps
ps
ps
ps
ps
ps
μs
ms
s
MHz
%
ns
ns
ns
ns
ns
ns
ns
Notes
â
â
â
â
â
â
â
â
â
â
5
5
5
5
5
5
5
5
5
NOTES:
1. 1.89V and 0ºC.
2. 3.47V and 0ºC.
3. 1.71V and 85ºC
4. 3.13V and 85ºC
5. Timing parameters defined in Section 4.19.3
6. 0m cable length
7. Tested on a GS2961A board from 5MHz to 3GHz
GS2961A 3Gb/s, HD, SD SDI Integrated Receiver
Data Sheet
54385 - 2
September 2012
21 of 104
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