Tektronix PSC1125, Instruction Manual

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PSC 1125 Digital Television Parallel-to-Serial Converter Instruction Manual
3-1
Specifications
Tables ** ** through ** ** list the electrical specifications for the
PSC 1125 Digital Television Parallel-to-Serial Converter. Performance require-
ments are generally quantitative and can be tested by qualified service personnel.
Reference information describes useful operating parameters and typical
characteristics and performance.
The reference information listed in the electrical specification portion of these
specifications apply over an ambient temperature range of 0
°
C to +40
°
C (32
°
F
to 104
°
F). The rated accuracies are valid when the instrument is calibrated at an
ambient temperature range of +20
°
C to +30
°
C (68
°
F to 86
°
F), after a
warm-up time of 20 minutes.
Table 3-1: Digital video interface
Characteristic Reference information
Parallel input
Format EAV and SAV must be properly encoded in both the Y and C
B
/C
R
parallel data for each format.
1125/60/2:1 74.25 MHz
1125/59.94/2:1 74.17582 MHz
750/60/1:1 74.25ĂMHz
750/59.94/1:1 74.17582 MHz
Format is automatically selected by the EAVĆSAV position. CRC and line numbers are
automatically embedded for each format.
Digital input
Connectors 25 Pin, DĆsub, Female 2
Y, P
B
/P
R
10 data pairs, 1 clock pair
Balanced ECL (10 KH Series), see Figure **
**.
Timing parameters See Figure ** **.
Tset
5 ns (Y signal CLK)
Thold
4 ns
Input impedance
110 10
Differential input voltage 150 mV minimum
Common mode
Range -2.85 to -1.3 V
Voltage
1.0 Vdc
Serial output
Connectors BNC 2