GX434 Gennum Corporation, GX434 Datasheet
GX434
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GX434 Summary of contents
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... GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-5946 Japan Branch: A-302 M i yamae age, 2–10– yamae, Suginami–ku, Tokyo 168, Japan CIRCUIT DESCRIPTION The GX434 is a high performance low cost monolithic 4x1 video multiplexer incorporating four bipolar switches with a common output address decoder and fast chip select circuitry ...
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... Drift 2 ORDERING INFORMATION Part Number Package Type GX434 – – CDB 14 Pin DIP GX434 – – CKC 16 Pin SOIC GX434 – – CTC Tape 16 Pin SOIC CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE DEVICES EXCEPT AT A STATIC-FREE WORKSTATION 0.7pF 0.7pF ...
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... All Hostile Crosstalk (see graph) Chip Disabled Crosstalk (see graph) Slew Rate R = 33. EXT ( DC < T < 70 C,C = 30pF GX434 SYMBOL CONDITIONS MIN TYP t Control input to appearance 130 200 ADR-ON of signal at the output. t Control input to disappear- 390 600 ADR-OFF ance of signal at output. ...
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... - 37 -80 -90 -100 -110 0.1 1 FREQUENCY (MHz) All Hostile Crosstalk (14 pin DIP) For all graphs and T S 510 -34 -2 TYPICAL PERFORMANCE CURVES OF THE GX434 100 200 100 The curves shown above represent typical batch sampled results Load Capacitance - - FREQUENCY (MHz) ...
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FREQUENCY (MHz) Chip Disabled Crosstalk vs Frequency +0.05 +0. +0.03 +0.02 +0. -0.01 ƒ = 3.58 MHz -0.02 Blanking level is -0.03 clamped to V BIAS -0.04 -0.05 ...
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Fig.3 Switching Transient (crosspoint to crosspoint) Chip disabled crosstalk = 20 log V IN Fig. 5 Chip Disabled Crosstalk Test Circuit BLANKING LEVEL 8 V 3.9 k CONTROL BIT I FROM /O PORT R.F. SIGNAL SOURCE ...
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... GX434 when different combinations of power supply voltages are used. These changes are rela- tive to a circuit using 8 volts Vcc. The GX434 does not require input DC biasing to optimise nor does it need switching transient suppression at the output. Furthermore, both the analog signal and logic circuits within the ...
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... The total output capacitance when the chip is disabled is approximately 15 pF per chip. Usually the GX434 multiplexer switch is used in a matrix ƒ= 3.58 MHz, 20 IRE configuration crosspoints perhaps combined total routing matrix. This means for example, that four ICs produce configuration and have a total output capacitance of 4 x15 all four chips are disabled ...
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... APPLICATIONS INFORMATION The GX434 multiplexer is a very high performance, wideband circuit requiring careful external circuit design. Good power supply regulation and decoupling are necessary to achieve optimum results. The circuit designer must use proper lead dress, component placement and PCB layout as in any high frequency circuit. ...