MAX3640 Maxim Integrated Products, MAX3640 Datasheet
MAX3640
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MAX3640 Summary of contents
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... Rev 0; 3/00 General Description The MAX3640 is a dual-path crosspoint switch for use at OC-12 data rates. The MAX3640 can be used to receive and transmit 622Mbps low-voltage differential signals (LVDS) across a backplane with minimum jitter accumulation. Each path incorporates input buffers, multiplexers, a crosspoint switch, and output drivers. ...
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LVDS, Dual 4:2 Crosspoint Switch ABSOLUTE MAXIMUM RATINGS Supply Voltage, V ................................................-0.5V to 5.0V CC Input Voltage (LVDS, TTL)..........................-0. Output Voltage (LVDS) ...............................-0. Continuous Power Dissipation (T = +85°C) A 48-Pin TQFP (derate 12.5mW/°C) ...
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AC ELECTRICAL CHARACTERISTICS (V = +3.0V to 3.6V, LVDS differential load = 100Ω ±1 unless otherwise noted.) (Note 1) PARAMETER SYMBOL Parallel Input/Output Data Rate Output Rise/Fall Time t Output Random Jitter Output Deterministic Jitter DJ LVDS Output ...
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LVDS, Dual 4:2 Crosspoint Switch (V = +3.3V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 150 140 130 8 OUTPUTS ENABLED 120 110 100 OUTPUTS ENABLED ...
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... ENA = low powers down DOA1−DOA4 and sets them to a high-impedance state. Input Select Pin, TTL Input. Connect to logic high (or V Connect to logic low (or GND) to select DIB1−DIB4. The MAX3640 features LVDS inputs and outputs for interfacing with high-speed digital circuitry. The LVDS standard is based on the IEEE 1596.3 LVDS specifica- tion ...
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... DIB1- DIA2+ 1 DIA2- DIB2+ 0 DIB2- DIA3+ 1 DIA3- DIB3+ 0 DIB3- DIA4+ 1 DIA4- DIB4+ 0 DIB4- IN_SEL Figure 2. Functional Diagram 6 _______________________________________________________________________________________ 2x2 CROSSPOINT MAX3640 SWITCH 2x2 CROSSPOINT SWITCH ENA DOA1+ DOA1- DOB1+ DOB1- SEL1 DOA2+ DOA2- DOB2+ DOB2- SEL2 DOA3+ ...
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... DIB3 DIB3 DIB4 DIB4 DIA3 DIA3 DIA4 DIA4 +3.3V 182Ω 48Ω 48Ω = 50Ω 50Ω o 48Ω 182Ω 48Ω +3.3V Signal at DOA2/DOB2 DIB1 DIB2 DIB1 DIB2 DIA1 DIA2 DIA1 DIA2 Signal at DOA4/DOB4 DIB3 DIB4 DIB3 DIB4 DIA3 DIA4 DIA3 DIA4 MAX3640 7 ...
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... For best performance, use good high-frequency layout techniques. Filter voltage supplies, and keep ground connections short. Use multiple vias where possible. Also, use controlled-impedance transmission lines to interface with the MAX3640 data inputs and outputs. - 2V, CC Figure 4 shows the interface model for the LVDS inputs, while Figure 5 shows the model for the LVDS outputs ...
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... DIA3- 4 DIA4+ 5 DIA4- 6 MAX3640 DIB1+ 7 DIB1- 8 DIB2+ 9 DIB2- 10 GND _______________________________________________________________________________________ 3.3V, 622Mbps LVDS, Dual 4:2 Crosspoint Switch TRANSISTOR COUNT: 2453 V CC DOA1 DOA1- MAX3640 GND 35 DOA3+ 34 DOA3- 33 DOA4 DOA4- DOB1 DOB1- 28 DOB2+ 27 DOB2- 26 GND Chip Information 9 ...
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LVDS, Dual 4:2 Crosspoint Switch 10 ______________________________________________________________________________________ Package Information ...
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Dual 4:2 Crosspoint Switch ______________________________________________________________________________________ 3.3V, 622Mbps LVDS, NOTES 11 ...
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... 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. 12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products ...