XRT5894 Datasheet, PDF (4/19 Pages) Exar Corporation – Four-Channel E1 Line Interface (3.3V or 5.0V)

XRT5894
PIN DESCRIPTION
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Symbol
LOS1
RXPOS1
RXNEG1
V_CC
RTIP1
RRING1
V_CC
GND
V_CC
GND
TRING2
V_CC
TTIP2
GND
RTIP2
RRING2
TXCLK2
TXNEG2
TXPOS2
LOS2
RXPOS2
RXNEG2
V_CC
NC
LOSSEL
GND
RXNEG3
RXPOS3
LOS3
TXPOS3
TXNEG3
TXCLK3
RRING3
RTIP3
Type
O
O
O
I
I
O
O
I
I
I
I
I
O
O
O
I
O
O
O
I
I
I
I
I
Description
Receiver 1 Loss of Signal. Asserted during LOS condition.
Receiver 1 Positive Data Out. Positive RZ data output for channel 1.
Receiver 1 Negative Data Out. Negative RZ data output for channel 1.
Positive Supply (+3.3V or +5.0V + 5%). Digital circuitry.
Receiver 1 Positive Bipolar Input.
Receiver 1 Negative Bipolar Input.
Positive Supply (+3.3V or +5.0V + 5%). Analog circuitry.
Analog Ground.
Positive Supply. (+3.3V or +5.0V + 5%). Analog circuitry.
Analog Ground.
Transmitter 2 Negative Bipolar Output.
Positive Supply (+3.3V or +5.0V + 5%). Transmitter channel 2.
Transmitter 2 Positive Bipolar Output.
Analog Ground. Transmitter channel 2.
Receiver 2 Positive Bipolar Input.
Receiver 2 Negative Bipolar Input.
Transmitter 2 Clock Input. Use for clocked mode with NRZ data.¹
Transmitter 2 Negative Data Input. Negative NRZ or RZ data input.¹
Transmitter 2 Positive Data Input. Positive NRZ or RZ data input.¹
Receiver 2 Loss of Signal. Asserted during LOS condition.
Receiver 2 Positive Data Out. Positive RZ data output for channel 2.
Receiver 2 Negative Data Out. Negative RZ data output for channel 2.
Positive Supply (+3.3V or +5.0V + 5%). Digital circuitry.
No Connect.
Loss of Signal Delay Select. “Hi” selects G.775, “Lo” selects user programmable.¹
Digital Ground.
Receiver 3 Negative Data Out. Negative RZ data output for channel 3.
Receiver 3 Positive Data Out. Positive RZ data output for channel 3.
Receiver 3 Loss of Signal. Asserted during LOS condition.
Transmitter 3 Positive Data Input. Positive NRZ or RZ data input.¹
Transmitter 3 Negative Data Input. Negative NRZ or RZ data input.¹
Transmitter 3 Clock Input. Use for clocked mode with NRZ data.¹
Receiver 3 Negative Bipolar Input.
Receiver 3 Positive Bipolar Input.
Note:
1 _{Has internal pull-up 50KW resistor.}
Rev. 1.10
4