XRT5894IV-F Exar Corporation, XRT5894IV-F Datasheet
XRT5894IV-F
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XRT5894IV-F Summary of contents
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... The device requires transformers on both receiver and transmitter sides, and supports both balanced and unbalanced interfaces. ORDERING INFORMATION Part No. XRT5894IV Rev. 1.10 E2000 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017 D Logical Inputs Accept either 3.3V or 5.0V Levels D Ultra-Low Power Dissipation D +3 ...
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XRT5894 BLOCK DIAGRAM RTIP4 (43) 1:2 R1 TIP RX Input RING R2 RRING4 (42) LOSCNT (45) LOSSEL (25) TTIP4 (53) R3 2:1 TIP 9.1 TX OUTPUT RING TRING4 (55) R4 9.1 Receiver Notes D The same type 1:2CT ratio transformer ...
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PIN CONFIGURATION TXPOS4 TXNEG4 TXCLK4 GND TTIP4 V CC TRING4 GND GND TRING1 V CC TTIP1 GND TXCLK1 TXNEG1 TXPOS1 Rev. 1. LEAD THIN QUAD FLAT PACK ( 1.4 mm, TQFP) 3 ...
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XRT5894 PIN DESCRIPTION Pin # Symbol Type Description 1 LOS1 O Receiver 1 Loss of Signal. Asserted during LOS condition. 2 RXPOS1 O Receiver 1 Positive Data Out. Positive RZ data output for channel 1. 3 RXNEG1 O Receiver 1 ...
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PIN DESCRIPTION (CONT’D) Pin # Symbol Type Description 35 GND Analog Ground. 36 TTIP3 O Transmitter 3 Positive Bipolar Output Positive Supply (+3.3V or +5.0V + 5%). Transmitter channel TRING3 O Transmitter 3 Negative Bipolar ...
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XRT5894 ELECTRICAL CHARACTERISTICS Test Conditions 3.3V or 5. Symbol Parameter DC Electrical Characteristics Parameters V Voltage Supply CC V Voltage Supply CC Inputs V Input High Level IH V Input Low Level IL Outputs ...
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ELECTRICAL CHARACTERISTICS Test Conditions 3.3V or 5. Symbol Parameter Power Specifications V =5.0V (Cont’ Power Consumption 120W C P Power Consumption 75W C P Power Consumption 120W C AC Electrical Characteristics V ...
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XRT5894 Disabling Output Drivers Output drivers may be individually disabled (hi-z output) by either of the following methods. 1. Either connect the transmit data inputs TXPOS and TXNEG for the channel to be disabled to a log source ...
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TXPOS (n) TXNEG ( TXCLK (n) TXOUT (n) RXIN (n) T5 RPOS (n) RXNEG (n) Rev. 1.10 TSU THO TSU TR TF TXPW T3 VTXOUT Figure 2. Transmit Timing Diagram Figure 3. Receive Timing ...
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XRT5894 RETURN LOSS SPECIFICATIONS The following transmitter and receiver return loss specifications are based on a typical 1:2CT ratio transformer. Frequency Range 51kHz to 102kHz 102kHz to 2.048MHz 2.048MHz to 3.072MHz Table 3. Transmitter Return Loss Specification Transmit Return Loss ...
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SYSTEM DESCRIPTION This device is a four channel E1 transceiver that provides an electrical interface for 2.048Mbps applications. Its unique architecture includes four receiver circuits that convert ITU G.703 compliant bipolar signals to TTL compatible logic levels. Each receiver includes ...
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XRT5894 that ensures compliance to ETSI 300 166 return loss requirement. TTL compatible dual rail transmit data signals are supplied to TXPOS and TXNEG inputs. The transmitter differential outputs TTIP and TRING are connected to the output transformer primary through ...
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Transmitter Output Pulse Measurement Figure 5 shows a typical transmit pulse plotted on the template shown in ITU G.703 Figure 15/G.703. The following conditions apply: V =3.30V CC Transmitter output transformer secondary terminated with 120W All ones signal Receiver output ...
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XRT5894 Transmitter Output Return Loss Measurements The following measurements were made with a Wandel and Goltermann SNA--2 Network Analyzer equipped with an RFZ--1 75W Return Loss Bridge. A 75W to 120W impedance matching transformer was used to make the 120W ...
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The following pictures show typical results of measurements that made over a 50 KHz to 3.5MHz frequency range. Figure 6 shows a return loss better than 20dB at low frequencies that decreases to about 12dB at 3.5MHz. Since the source ...
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XRT5894 Output Transformer Selection A 1:2 ratio transformer is recommended for both 75W and 120W operation because the transmitter, when equipped with this device, meets both the ITU G.703 output pulse amplitude requirement and, the ETSI return loss specification. Although ...
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This may be further simplified Figure 10. Equivalent Circuit Where int ext Therefore Req ...
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XRT5894 Seating Plane A 1 Note: The control dimension is the millimeter column Rev. 1.10 64 LEAD THIN QUAD FLAT PACK ( 1.4 mm, TQFP) Rev. 2. ...
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... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...