dp8392c National Semiconductor Corporation, dp8392c Datasheet
dp8392c
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dp8392c Summary of contents
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... DP8392C DP8392C-1 CTI Coaxial Transceiver Interface General Description The DP8392C Coaxial Transceiver Interface (CTI coax- ial cable line driver receiver for Ethernet Thin Ethernet (Cheapernet) type local area networks The CTI is connect- ed between the coaxial cable and the Data Terminal Equip- ...
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... Ethernet Specifications for signal levels Controlled rise and fall times ( harmonic components The rise and fall times are matched to minimize jitter The drive current levels of the DP8392C meet the tighter recommended limits of IEEE 802 3 and are set by a built-in bandgap reference and an external 1% re- sistor An on chip isolation diode is provided to reduce the Transmitter’ ...
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Functional Description 3 3 COLLISION FUNCTIONS The collision circuitry consists of two buffers two 4-pole Bessel low pass filters (section comparator a heart- beat generator a 10 MHz oscillator and a differential line driver Two ...
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... Pulse Engineering (San Diego) Part No 64103 Valor Electronics (San Diego) Part No LT6003 or equivalent 5 0 Connection Diagrams Order Number DP8392CV See NS Package Number V28A FIGURE 4 Top View Order Number DP8392CN See NS Package Number N16E TL F 11085 – 6 FIGURE 11085 – 11085 – 16 ...
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... There are two basic considerations in designing a PCB for the DP8392C and C-1 CTI The first is ensuring that the layout does not degrade the electrical characteristics of the DP8392 and enables the end product to meet the IEEE ...
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... EACH set of pins should be for applications with low transmitter duty cycle and for high transmit duty cycle applications Figure 7 illustrates a recommended component side layout for these planes FIGURE 7 Recommended Layout and Dissipation Planes for DP8392CV (Not to Scale ...
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... Transmitter squelch threshold ( Input capacitance (RXI Shunt resistance non transmitting (RXI) RXI R Shunt resistance transmitting (TXO) TXO 9 0 DP8392C-1 Electrical Characteristics All parameters with respect to CD and RX g Symbol Parameter I Supply current out of V EE1 EE I Supply current out of V ...
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... DP8392C Switching Characteristics Symbol Parameter t Receiver startup delay (RXI to RX RON t Receiver propagation delay (RXI Differential outputs rise time ( Differential outputs fall time ( Receiver cable total jitter RJ t Transmitter startup delay (TX TST t Transmitter propagation delay (TX Td ...
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Timing and Load Diagrams FIGURE 8 Receiver Timing FIGURE 9 Transmitter Timing FIGURE 10 Collision Timing FIGURE 11 Heartbeat Timing 11085 – 11085 – 11085 – ...
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Timing and Load Diagrams The 50 mH inductance is for testing purposes Pulse transformers with higher inductances are recommended (see Figure 4 ) (Continued) FIGURE 12 Jabber Timing t Receiver equalization (jitter correction ...
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... Physical Dimensions inches (millimeters) Order Number DP8392CN or DP8392CN-1 Molded Dual-In-Line Package (N) NS Package Number N16E 11 ...
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... Physical Dimensions inches (millimeters) (Continued) Order Number DP8392CV or DP8392CV-1 LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...