XRT5894IV-F Exar Corporation, XRT5894IV-F Datasheet - Page 8

• Manufacturer Part Number: XRT5894IV-F
• Description: IC LIU E1 QUAD 64TQFP
• Manufacturer: Exar Corporation

Specifications of XRT5894IV-F

• Maximum Operating Temperature: + 85 C
• Maximum Power Dissipation: 590 mW / 1240 mW
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V / 5 V
• Package / Case: TQFP-64
• Supply Voltage Range: 3.135V To 3.465V, 4.75V To 5.25
• Power Dissipation Pd: 1240mW
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: TQFP
• No. Of Pins: 64
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Disabling Output Drivers
Output drivers may be individually disabled (hi-z output) by either of the following methods.
TRANSFORMER REQUIREMENTS
Note:
The same type 1:2 CT ratio device may be used at both receiver input and transmitter output.
The following transformers have been tested with the
XRT5894:
HALO type TG26-1205(package contains two 1 CT:2 CT ratio transformers)
Pulse type PE-65535 (1:2 CT ratio)
Transpower Technologies type TTI 7154-R (1:2 CT ratio)
Magnetic Supplier Information:
HALO Electronics, Inc.
P.O. Box 5826
Redwood City, CA 94063
Tel. [phone]
Fax. [phone]
Pulse
Telecom Product Group
P.O. Box 12235
San Diego, CA 92112
Tel. [phone]
Fax. [phone]
Transpower Technologies, Inc.
24 Highway 28, Suite 202
Crystal Bay, NV 89402--0187
Tel. [phone]
Fax. [phone]
XRT5894
1. Either connect the transmit data inputs TXPOS
Rev. 1.10
Table 1. Input Transformer Requirements
and TXNEG for the channel to be disabled to a log-
ic 1 source (VCC), or allow them to float (inputs
have internal pull--up resistors).
Turns Ratio
1:2 CT
Line Impedance
75W or 120W
8
2. Connect TXCLK for the channel to be disabled to
Table 2. Output Transformer Requirements
logic 0 source (Ground), and also apply data to the
TXPOS and TXNEG inputs of that channel.
Turns Ratio
1:2
Line Impedance
75W or 120W