S2068TB Applied Micro Circuits Corporation, S2068TB Datasheet - Page 19

• Manufacturer Part Number: S2068TB
• Manufacturer: Applied Micro Circuits Corporation

Specifications of S2068TB

• Number Of Receivers: 2
• Protocols Supported: IEEE 802.3z
• Operating Supply Voltage (typ): 3.3V
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 3.47V
• Mounting: Surface Mount
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Lead Free Status / RoHS Status: Not Compliant

Table 18. S2068 Receiver Timing
OTHER OPERATING MODES
Loopback Mode
When loopback mode is enabled, the serial data
from the transmitter is provided to the serial input of
the receiver. Loopback mode can be simultaneously
enabled for both channels using the loopback-en-
able input, LPEN.
The loopback mode provides the ability to perform
system diagnostics and off-line testing of the inter-
face to guarantee the integrity of the serial channel
before enabling the transmission medium.
Note that the high speed outputs are disabled during
loopback operation.
Test Modes
The RESET pin is used to initialize the transmit
FIFOs and must be asserted (LOW) prior to entering
the normal operational state (see section Transmit
FIFO Initialization).
Operating Frequency Rate
The S2068 is designed to operate at the Gigabit
Ethernet rate of 1.250 GHz.
DUAL GIGABIT ETHERNET TRANSCEIVER
October 13, 2000 / Revision D
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