MX3210-12-020 Datasheet start-up circuits, pneumatic valve drivers and current sources. The device is able to drive resistive or inductive loads with an output voltage from l.25V to VIN-30V providing an internally limited output current; it has built in short circuit and thermal shutdown protections. The device does not provide galvanic insulation from main. MX3210-12-020 Price Input Overvoltage Protection The maximum input differential voltage that can be applied to the SSM2275/SSM2475 is +7 V. A pair ofinternal back-to-back Zener diodes are connected across the input terminals. This prevents emitter-base junction breakdown from occurring to the input transistors, Ql and Q2, when very large differential volt- ages are applied. If the device's differential voltage could exceed MX3210-12-020 on stock| FUNCTIONAL DESCRIPTION RCV1201 -622 Design Terminating the Outputs TheRCV1201-622 receivercontainsalnGaAsP photo- The data outpLrts of the RCV1201-622 are 10K ECL detector, GaAs lC transimpedance amplifier and inter- compatible. Care should be taken to match termination face amplifiercircuit. The receiveris designed with a 50/ impedances to the interconnect to minimize reflection 125 micron fiber pigtail to allow maximum flexibilrty in effects. More information on ECLinterconnection, bias- connectoroptions. ing and termination can be found in most ECL manufacturets data books. The interface amplifier is capacrtivily coupled to the preamplifier circuit. The coupling capacitor values are Circuit Layout large enough to allow good sensitivity down t0 50KHz. The RCV1201-622 uses very high bandwidth circuitry Noise Immunity to achieve its high level of performance. Care must be taken to ensure stable operation. The use of ground The RCV1201-622 recerver hasintemalcomponentsto planes and transmission line interconnects is required. filterpowersupply noise from the gain circuits. To obtain The use of a standard evaluation board is highly rec- maximum performance, rt is highly recommended that ommended for those users who are not familiar with external filter networks be utilized as well. The photo- these techniques. diode bias pin is especially sensitive to extraneous Evaluation boardsforthe RCV1201 - 622 are available noise and a separate decoupling network is shown. from BT&D. Please contact your representative for The current drain on pin l is directly proportional to the details. incoming optical signal. This current will range from approximately l uA on a smallopticalsignalt0 500UA on Manufacturing a large optical signal. The RCV1201-622 is a fully hermetically sealed com- Additionalexternalcircuitry may be added to monitorthe ponent. The fiber pigtail on the device requires normal photodiode current for use as a simpla signaldetection fiber handling considerations. Care should be taken to circuit. avoid tight bends as well as excessive tension on the fiber pigtail. As a practical consideration, the majority of current drawn from the positive supply is used in the preampli- The allowable temperature range forthe RCV1201-622 fierIC. The interface amplifier draws the majority ofthe is limited by the material used in the pigtail. Exposure to currentfromthenegativesupply.TheseriesRCnetworks temperatures over 850C is not recommended. Low attached to each pin are intended to insure maximum profile sockets or hand soldering is recommended for stability. this part. Block Diagram RCV1201 - 622 | | | | | | | | | | PIN PHOTO | I^'V__-kV^-'V- AMPLIFIER | LOW | | 1NTERFACE | | | DIODE | > 7 | PASS | | AMPLIFIER | | | | FIBER | | | | RLTER | | l | i1 | | | | | | | l l I | | t +5 | v+5v GND -5.2V | | BD | Publication No. Revision Issue date: Page DS058 1 Dec4,1992 2 | | | | | | | | | | | | |
| Parameters | 122NQ | Units | Conditions | | VFM Max. Forward Voltage Drop (1) | 049 | v | @120A | | | * See Fig. 1 | 0 59 | v | @240A | T=25 0C | | 041 | V | @120A | T= 125 0C | | 0 54 | V | @240A | | IRM Max. Reverse Leakage Current (1) | 10 | mA | T= 25 0C | | | * See Fig. 2 | 560 | mA | Ti= 125 0C | VR= rated VR | | Ct Max. Junction Capacitance | 7400 | pF | VR = 5VDC, (test signal range 100Khz t0 1Mhz) 25 0C | | Ls Typical Series Inductance | 7 0 | nH | From top of terminal hole to mounting plane | | dv/dt Max. Voltage Rate ofChange (Rated VR) | 10,000 | VLJs | | | | | | |
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