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package: PLCC-28
DISTINCTIVE CHARACTERISTICS
Compatible with lEEE 802.3/Ethernet/Cheapernet specification
Crystal/TTL oscillator-controlled Manchester encoder
Manchester decoder acquires clock and data within four b times with an accuracy of 3 ns ±
Guaranteed carrier and collision detection squelch threshold limits
Carrier/collision detected for inputs greater than
—Carrier/collision detected for inputs greater than
–275 mV
—No carrier/collision for inputs less than –175 mV
Input signal conditioning rejects transient noise
—Transients <10 ns for collision detector inputs
—Transients <20 ns for carrier detector inputs
Receiver decodes Manchester data with worst case ±19 ns of clock jitter (at 10 MHz)
TTL-compatible host interface
Transmit accuracy +0.01% (without adjustments
The Am7992B Serial Interface Adapter (SIA) is a Manchester encoder/decoder compatible with IEEE 802.3, Cheapernet, and Ethernet specifications. In an IEEE 802.3/Ethernet application, the Am7992B interfaces the Am7990 Local Area Network Controller for Ethernet (LANCE) to the Ethernet transceiver device,acquires clock and data within four bit times, and decodes Manchester data with worst case
±19 ns phase jitter at 10 MHz. SIA provides both guaranteed signal threshold limits and transient noise suppression circuitry in both data and collision paths to minimize false start conditions.
دوست عزیز برای سفارش این قطعه از روش های زیر اقدام نمایید:
تهران -خ جمهوری - پاساژ امجد - طبقه زیر همکف - شماره 25
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