1893AFLF IDT, 1893AFLF Datasheet - Page 111

• 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

10.3 Recommended Component Values
ICS1893AF, Rev. D 10/26/04
VDD
Table 10-3. Recommended Component Values for ICS1893AF
† There are two IEEE Std. 802.3 requirements that drive the tolerance for the frequency of the oscillator.
Figure 10-1. ICS1893AF 10TCSR and 100TCSR
Typical Board Layouts
10TCSR and 100TCSR Bias Resistors
Oscillator Frequency
10TCSR Resistor Value
100TCSR Resistor Value
LED Resistor Value
•
•
Note:
1. The VDD connection to the 12.1K resistor can connect to any VDD.
ICS1893AF Data Sheet - Release
Clause 22.2.2.1 requires the MII TX_CLK to have an accuracy of ± 100 ppm.
Clause 24.2.3.4 is more stringent. It requires the code-bit timer to have an accuracy of 0.005% (that is, ±50 ppm).
14
VDD
Parameter
2.0K 1%
10TCSR
Minimum
Copyright © 2004, Integrated Circuit Systems, Inc.
510
–
–
–
10TCSR
15
See
ICS1893AF
All rights reserved.
Typical
Figure 10-1
2.00k
111
25
1k
12.1 K
1.54K 1%
1%
100TCSR
Maximum
10k
Chapter 10 DC and AC Operating Conditions
–
–
–
100TCSR
16
± 50 ppm †
Tolerance
1%
1%
–
October, 2004
Units
MHz