1893AFLF IDT, 1893AFLF Datasheet - Page 100

• Manufacturer Part Number: 1893AFLF
• Description: Ethernet ICs 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER
• Manufacturer: IDT
• Type: Integrated PHY Transceiverr

Specifications of 1893AFLF

• Rohs: yes
• Product: Ethernet Transceivers
• Data Rate: 10 Mb/s, 100 Mb/s
• Supply Voltage - Max: 3.47 V
• Supply Voltage - Min: 3.14 V
• Maximum Operating Temperature: + 70 C
• Package / Case: SSOP-48
• Ethernet Connection Type: 100Base-TX, 10Base-T
• Maximum Supply Current: 160 mA
• Minimum Operating Temperature: 0 C
• Standard Supported: 802.3
• Part # Aliases: ICS1893AFLF

9.2.1 Transformer Interface Pins
ICS1893AF, Rev D 10/26/04
Table 9-4. Configuration Pins
The tables in this section list the ICS1893AF pins by their functional grouping.
Table 9-5
Table 9-5. Transformer Interface Pins
TP_RXN
TP_RXP
TP_TXN
TP_TXP
Name
Pin
ICS1893AF Data Sheet - Release
Signal Name
100TCSR
10TCSR
RESETn
RFOUT
10/100
REFIN
lists the pins for the transformer interface group of pins.
Number
Pin
19
18
13
12
Output
Output
Type
Input
Input
Pin
Copyright © 2004, Integrated Circuit Systems, Inc.
Pin No.
16
15
47
46
22
9
Twisted-Pair Receive (Data) Negative.
Within this table, see the description at the TP_RXP pin.
Twisted-Pair Receive (Data) Positive.
Data reception of differential analog signals occurs over the TP_RXN
and TP_RXP pair of differential-signal pins. Together these pins receive
the serial bit stream from the UTP cable through an isolation
transformer.
Depending on the operating mode of the remote link partner, the
received data is one of the following types of signals:
The TP_RXN and TP_RXP pins interface directly to an isolation
transformer, which in turn, interfaces with the UTP cable.
Twisted-Pair Transmit (Data) Negative.
Within this table, see the description at the TP_TXP pin.
Twisted-Pair Transmit (Data) Positive.
Differential analog signal transmission occurs over the TP_TXN and
TP_TXP pair of pins. Together these pins drive the serial bit stream
over the UTP cable.
Depending on the operating mode of the ICS1893AF MDI, the
current-driven differential driver produces one of the following types of
signals:
The TP_RXN and TP_RXP pins interface directly to an isolation
transformer, which in turn, drives the UTP cable.
•
•
•
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Two-level 10Base-T (that is, Manchester-encoded) signals
Three-level 100Base-TX, (that is, MLT-3 encoded) signals
Two-level 10Base-T (that is, Manchester-encoded) signals
Three-level 100Base-T (that is, MLT-3 encoded) signals
Output Indication, High=100baseTX Operation
100M Transmit Current Set Resistors (See Figure X)
10M Transmit Current Set Resistor
Frequency Reference Input: 25 MHz Input Clock or Crystal
Frequency Reference Output for Crystal
System Reset (active low)
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100
Chapter 9 Pin Diagram, Listings, and Descriptions
Pin Description
Signal Description
October, 2004