MAX4546 Maxim, MAX4546 Datasheet
MAX4546
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MAX4546 Summary of contents
Page 1
... T-switches designed for switching RF and video signals from DC to 300MHz in 50Ω and 75Ω systems. The MAX4545 contains four normally open single-pole/single- throw (SPST) switches. The MAX4546 contains two dual SPST switches (one normally open, one normally closed.) The MAX4547 contains two single-pole/double-throw (SPDT) switches. Each switch is constructed in a “ ...
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... Plastic DIP (derate 10.53mW/°C above +70°C) ..........................842mW Note 1: Voltages on all other pins exceeding are clamped by internal diodes. Limit forward diode current to maximum cur- rent rating. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...
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... ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) (V+ = +4.5V to +5.5V -4.5V to -5.5V, V values are +25°C.) A PARAMETER SYMBOL SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4546/MAX4547 only) Charge Injection (Note 3) NO_, NC_ Off Capacitance C COM_ Off Capacitance C COM_(OFF) COM_ On Capacitance C COM_(ON) Off Isolation (Note 7) ...
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... V IN_ Input Logic Threshold Low V IN_ Input Current Logic High or I INH_ Low SWITCH DYNAMIC CHARACTERISTICS Turn-On Time t Turn-Off Time t Break-Before-Make Time Delay t BBM (MAX4546/MAX4547 only) Charge Injection Off-Isolation V (Note 7) Channel-to-Channel Crosstalk V (Note 8) POWER SUPPLY V+ Supply Current 4 _______________________________________________________________________________________ = 2.4V 0V INH ...
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... INH_ Low SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4546/MAX4547 only) POWER SUPPLY V+ Supply Current V+ Supply Current Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column. Note 3: Guaranteed by design. Note 4: ∆R = ∆ ...
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Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches __________________________________________Typical Operating Characteristics (V+ = +5V -5V +25°C, GND = 0V, packages are surface mount, unless otherwise noted.) A ON-RESISTANCE vs. V COM (DUAL SUPPLIES) 100 V 1.2V, -1.2V ...
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... FREQUENCY (MHz) MAX4545 TOC13 100 100 0.1 0 -20 0.01 -40 -60 0.001 -80 CROSSTALK 0.0001 -100 100 1000 MAX4546 FREQUENCY RESPONSE -5V INSERTION -20 5V INPUT LOSS -30 50 OUTPUT -40 -50 OFF ISOLATION -60 -70 -80 CROSSTALK -90 -100 1 10 100 1000 FREQUENCY (MHz) ...
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... NO_ (or NC_) and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass equally well in either direction. _______________Theory of Operation Logic-Level Translators The MAX4545/MAX4546/MAX4547 are constructed as high-frequency “T” switches, as shown in Figure 1. The logic-level input, IN_, is translated by amplifier A1 into logic signal that drives amplifier A2. (Amplifier inverter for normally closed switches ...
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... MAX4545/MAX4546/MAX4547. Even ±5% toler- ance supplies may have overshoot or noise spikes that exceed 13.0V. The MAX4545/MAX4546/MAX4547 operate from a sin- gle supply between +2.7V and +12V when V- is con- nected to GND. All of the bipolar precautions must be observed. Note, however, that these parts are opti- mized for ± ...
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... Voltages below -0.3V can be clipped by the internal ESD-protection diodes, and the parts can be damaged if excessive current flows. When power to the MAX4545/MAX4546/MAX4547 is off (i.e and V- = 0V), the Absolute Maximum Ratings still apply. This means that neither logic-level inputs on IN_ nor signals on COM_, NO_, or NC_ can exceed ± ...
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... In coaxial systems, therefore impossible GND3 to match any impedance for both the on and off state. If COM3 9 impedance matching is critical, the MAX4546 is best suited, since its two sections can be configured single on/off switch, as shown in Figure 2. This circuit (61 “wastes” switches and has higher losses, but has bet- ter off isolation and maintains good impedance match- ing in both the on and off states ...
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Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches 1 OUT MAX4545 ADDRESS DECODING MAX4545 MORE THAN 4 CHANNELS Figure 3. 4-Channel Multiplexer 12 ______________________________________________________________________________________ 1 OUT 2 50/75 ...
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... REPEAT TEST FOR OTHER PAIR OF SWITCHES. 10nF -+5V V+ MAX4547 V IN_ IN_ GND_ 50 10nF ** REPEAT TEST FOR OTHER SWITCH. Figure 5. Break-Before-Make Interval (MAX4546/MAX4547 only) ______________________________________________________________________________________ Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches COM_ V OUT ALL GND_ PINS ARE CONNECTED TO GROUND PLANE (OV). ...
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... Figure 6. Charge Injection +5V 10nF IN_ NO_ MAX4545 MAX4546 MAX4547 COM_ GND_ V- 10nF -5V MEASUREMENTS ARE STANDARDIZED AGAINST SHORT AT IC TERMINALS. OFF ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH. ON LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_TERMINAL ON EACH SWITCH. ...
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... IN_ NO_ NC_ MAX4545 MAX4546 MAX4547 COM_ GND_ V- 10nF -5V ALL GND_ PINS ARE CONNECTED TO GROUND PLANE (0V). Figure 8. NO_, NC_, COM_ Capacitance MAX4546 COM1 IN1 IN2 COM2 N.C. GND1 NO1 V- N.C. NC4 N.C. GND3 GND4 COM4 COM3 0.085" (2.159mm) N. INTERNAL CONNECTION ______________________________________________________________________________________ ...
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... MAX4546C/D 0°C to +70°C MAX4546EPE -40°C to +85°C MAX4546ESE -40°C to +85°C ________________________________________________________Package Information Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...