MATV-0811_15 Datasheet, PDF (1/4 Pages) Analog Devices – a-Bit Video Analog to DIGITAL CONVERTER

~ ANALOG
W DEVICES
a-BitVideo
Analog-to-DigiCtaol nverter
I
MATV-081,1-0816-,0820 I
FEATURES
8.Bit Accuracy - Guaranteed Monotonic
Ultra-High Speed - dc to 20MHz Word Rates
Most Economical Video AID
Smallest Available Complete AID - 5.5" X4.38" X 0.85"
- Self Contained Includes Input Buffer, Encoder, Reference,
Timing, and Buffered Parallel Output
APPLICA TIONS
OBSOLETE IJ Digitize Color Television at Up to Three or Four Times
NTSC or PAL Color Subcarrier Frequencies
Video Time Base Correction and Frame Synchronization
Radar Signal Processing
Real Time Transient and Continuous Spectrum Analysis
GENERAL DESCRIPTION
The Analog Devices' MATV series of AID converters represent
a major breakthrough in high-speed AID technology. Providing
conversion word rates from dc to 11MHz, 16MHz and 20MHz
the MATV-0811, MATV-0816 and MATV-0820 are the lowest
cost AID converters in their performance class. As complete
devices, they require only the addition of external power to
accomplish precision video AID conversion.
The use of internal hybrid microcircuit construction allows
A_'"N_'aA_T'OG
UN'POtAR'
"_'"_"O_,<₀A_.R_"
RANGE
SEeECT
"YBR'" GRAY (NCODERS
.OT.
ILS'"
I
I
I
I
I
I
I
I
I
1
I
,"RAUEe
DATA OUT
.,} 1
these modular AID's to occupy a volume of only 21 cubic inches.
IMSBI
ENCOOE
They are housed in metal cases which not only shield the cir-
C_'"O_,M_aM_TAND
cuits from external RF interference, but aid in efficient heat.
13 _- DREAATDAY
OUT
dissipation. A choice of analog input voltages is available, in-
cluding the industry standard 0 to + 1V at 7SQ. The encode
command input, data ready output, and the digital bit outputs
"OWER
'",UT
POWER
"'UT
..sv
'N'UT
5.2V
,",aT
POWER
GROUND
WUte
GROUND
are all TTL compatible. Designed to operate from either :!:12V
or :!:lSV analog and +SV digital supplies (MATV-o811 and
MA TV-o811, MA TV-o816 Block Diagram
MATV-o816 also require -S.2V), the MATV series dissipate
less than 8 watts. Their weight is < 10 ounces due to enclosure
rather than encapsulation. This technique facilitates rapid,
inexpensive factory repair and aids in reliable printed circuit
board mounting by the customer without extensive mechan-
ical constraints or system engineering.
Relative dc accuracy is 0.2% of full scale :!:l/2LSB when oper-
ating over the frequency range of dc to 20MHz. The MATV
series is designed to digitize color television signals at rates
up to 20MHz and is also ideally suited for other analog to
digital conversion requirements, such as radar signal processing,
laser pulse analysis, transient analysis, and medical electronics
applications where real-time analysis and display of large quan-
tities of information are required.
ANALOG
INPUT
ANALOG
GROUND
RANGE
SELECT
ENCODE
COMMAND
ENCODE
GROUND
BIT 1
(MSBI
I
:^{I 1}
1
I
I
DIGITAL
OUTPUTS
) ^{BI~ a}
ILsa)
13 DATA
READY
POWER LOGIC .,SV
-1SV
+SV
GROUND GROUND
RA AND RE ARE DETERMINED BY THE ANALOG INPUT IMPEDANCE
AND ENCODE COMMAND INPUT IMPEDANCE, RESPECTIVELY.
MA TV-O820 Block Diagram
- --~~------
.. At'.., n~ Tn n'~'TII'
rnl\/I/CDTCDC:
Ifni /I 11_C:7