C0080506 C08/506
C0080507 C08/507
C0080508 C08/508
C0080509 C08/509
C0080510 C08M/510
C0080511 C08/511
C0080512 C08S/512
at 250mA.
1979.
PN1/29J (4U BMM card with front panel).
DD
Analogue to Digital Converter. Analogue to Digital
conversion of video signals, includes video low pass
filter and black level stabilisation. Video input IV p-p
into 75Q. Data output 8 bits, maximum sampling frequency
greater than 20MHz. Power requirements +15V, l50mA; +12V,
100mA; -12V, 500mA. PB1/29J. RD 1979.
Analogue to Digital Converter. This unit forms part of the
ME3M/502 Television Waveform Analyser. Its function is to
sample video signals my means of 48 separate sample and
hold circuits. These samples are then converted into 10-
bit binary codes by a slow speed ADC. The unit requires
the
C08/508
to
control
the
position and
width
of
the
samples. Power requirements +12V, -12V, +5V. 4U
unsupported card with 57-way edge connector. DDMI
9.301(83). DD 1980.
ADC Control Unit. This unit forms part of the ME3M/502
Television Waveform Analyser. Its function is to produce
sample pulses to drive two separate C08/507 ADC units. The
samples can be programmed in both width and position.
Power requirements +5V. 4U unsupported card with 57-way
edge connector. DD 1980.
Analogue-to-Digital Converter. This unit is very similar
to the C08/506. It differs from that unit in its power
connections. It is not equipped with a low pass filter,
although space is provided. Power requirements +5V, 250mA;
+12V,
600mA.
Unsupported
4U
card with
'J'
width
front
panel.
DD
1981.
EDI
10401(1)
OCT 85.
DDHB 1.195(85).
DDMI 1.263(85).
ADC and Pre-Filter. The unit which forms part of the Sub
Nyquist PAL distribution system, takes in a standard level
composite waveform and converts it into 10-bit parallel
digital words at emitter coupled logic levels. Internally
8-bit samples at 4fsc are digitally comb filtered to give
an
output
sample
stream
at
2fsc.
A separate
unfiltered
data path is incorporated to allow undistorted transmission
of field interval signals. Power requirements 240V a.c. at
approx 150W. PN3/54. Parent equipment used in conjunction
with other units of the 68 PAL System. C05/504, C08/509,
FL1/533
4,
GE7/507
GE2/627A,
PS4/18A
2,
UN14/544,
UN23/688. DD 1982. DDHB 1.176(83).
8-Bit High Speed ADC. Bandwidth of 20MHz, mounted as sub
board on a 4U card, incorporating balanced ECL clock and
data input with separate ground planes. Power requirements
-5.2V at 800mA, +15V at 150mA, -15V at 300mA. 4U
unsupported card with 'J' width front panel. RD 1983.
Triple Video Analogue to Digital Converter. The C08/512
accepts 3 analogue video feeds, and digitises each to 8-bit
precision. The video feeds may be RGB, YUV or PAL. The
anti-alias filters are installed to suit the application,
and the pre-ADC clamps are swi tchable. A PROM in each
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