XRT83L30 Datasheet, PDF (7/78 Pages) Exar Corporation – SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

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XRT83L30
SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
PRELIMINARY
REV. P1.3.0
PIN DESCRIPTIONS BY FUNCTION
SERIAL INTERFACE
SIGNAL NAME
HW/HOST
SDI
EQC4
SDO
EQC3
SCLK
EQC2
CS
EQC1
INT
EQC0
PIN #
20
21
22
23
24
25
TYPE
I
I
DESCRIPTION
Mode Control Input
This pin is used for selecting Hardware or Host mode to control the device.
Leave this pin unconnected or tie “High” to select Hardware mode. For Host
mode, this pin must be tied “Low”.
NOTE: Internally pulled “High” with a 50kΩ resistor.
Serial Data Input
In Host mode, this pin is the data input for the Serial Interface.
Equalizer Control Input 4
Hardware mode, See “Control function” on page 13.
O Serial Data Output
In Host mode, this pin is the output “Read” data for the serial interface.
I
Equalizer Control Input 3
Hardware mode, See “Control function” on page 13.
I
Serial Interface Clock Input
In Host mode, this clock signal is used to control data “Read” or “Write” oper-
ation for the Serial Interface. Maximum clock frequency is 20MHz.
Equalizer Control Input 2
Hardware mode, See “Control function” on page 13.
I
Chip Select Input
In Host mode, tie this pin “Low” to enable communication with the device via
the Serial Interface.
Equalizer Control Input 1
Hardware mode, See “Control function” on page 13.
O Interrupt Output (active "Low")
In Host mode, this pin goes “Low” to indicate an alarm condition has
occurred within the device. Interrupt generation can be globally disabled by
setting the GIE bit to “0” in the command control register.
I
Equalizer Control Input 0
Hardware mode, See “Control function” on page 13.
NOTE: This pin is an open drain output and requires an external 10kΩ pull-up
resistor.
RECEIVER
SIGNAL NAME
RLOS
RCLK
PIN #
63
64
TYPE
O
O
DESCRIPTION
Receiver Loss of Signal
This signal is asserted ‘High’ for at least one RCLK cycle to indicate loss of
signal at the receive input.
Receiver Clock Output
4