EELXT332PE.G2 S L8L8 Intel, EELXT332PE.G2 S L8L8 Datasheet - Page 13

• Manufacturer Part Number: EELXT332PE.G2 S L8L8
• Manufacturer: Intel

Specifications of EELXT332PE.G2 S L8L8

• Operating Supply Voltage (typ): 5V
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

Datasheet
1.
2. DI = Digital Input; DO = Digital Output; DI/O = Digital Input/Output; AI = Analog Input; AO = Analog Output; S = Power
1.
2. DI = Digital Input; DO = Digital Output; DI/O = Digital Input/Output; AI = Analog Input; AO = Analog Output; S = Power
QFP
Pin
39
40
41
42
43
44
QFP
1
2
3
4
5
6
7
Pin
35
36
37
Supply.
Table 1
Supply.
Table 2. Unipolar Host Mode Pin Descriptions
Table 3. Hardware Mode and Bipolar Hardware Mode Pin Descriptions
Table 1
PLCC
describes the pins that do not change function in Unipolar Host mode and functions of pins unique to Bipolar mode.
Pin
describes the pins that do not change function in Unipolar Host mode and functions of pins unique to Bipolar mode.
10
12
13
11
1
2
3
4
5
6
7
8
9
PLCC
Pin
41
42
43
(Bipolar)
(Bipolar)
(Bipolar)
(Bipolar)
Symbol
RNEG0
TPOS0
TNEG0
RPOS0
TRSTE
RCLK0
TAOS0
TCLK0
LEN20
LEN10
LEN00
MCLK
GND
Symbol
TDATA1
ECE1
BPV1
Dual T1/E1 Line Interface Unit with Crystal-less Jitter Attenuation — LXT332
I/O
DO
DO
DO
DI
DI
DI
DI
DI
DI
DI
DI
DI
S
2
I/O
DO
DI
DI
Tristate Output Enable. When held High, forces all output pins to high-Z
(tri-state).
When held Low, Bipolar I/O mode is selected. In this mode, the framer interface is
bipolar (TPOS/TNEG and RPOS/RNEG), and the B8ZS/HDB3 encoders are disabled.
When clocked by MCLK, Unipolar I/O mode is selected. In this mode, the framer
interface is unipolar (TDATA and RDATA), and the TNEG and RNEG pins are re-
mapped. The TNEG pins are re-mapped as Encoder Enables (ECE) to individually
enable the B8ZS/HDB3 encoder/decoder for each port. The RNEG pins are re-mapped
as Bipolar Violation (BPV) indicators to report BPVs detected at the respective ports.
Transmit Clock - Port 0. 1.544 MHz for T1, 2.048 MHz for E1. The port 0 transmit
data inputs are sampled on the falling edge of TCLK0.
Transmit Data Positive and Negative - Port 0. In the Bipolar I/O mode, these pins
are the positive and negative sides of a bipolar input pair for port 0. Data to be
transmitted onto the port 0 twisted-pair line is input at these pins.
Receive Data Positive and Negative - Port 0. In the Bipolar I/O mode, a signal on
RNEG corresponds to receipt of a negative pulse on RTIP/RRING. A signal on RPOS
corresponds to receipt of a positive pulse on RTIP/RRING. RNEG/RPOS outputs are
Non Return-to-Zero (NRZ). RPOS and RNEG are stable and valid on the rising edge of
RCLK.
Receive Clock - Port 0. Normally, this clock is recovered from the port 0 input signal.
Under Loss of Signal (LOS) conditions, RCLK0 is derived from MCLK.
Transmit All Ones Enable - Port 0. When TAOS is High and RLOOP is Low, the
TPOS/TNEG or TDATA input is ignored and the port transmits a stream of ones at the
TCLK frequency. Refer to “Transmit All One’s” on
Line Length Equalizer - Port 0. These pins determine the shape and amplitude of the
port 0 transmit pulse. See
Master Clock. The master clock (1.544 MHz for T1, 2.048 MHz for E1) must be
independent, free-running, continuously active and jitter free for receiver operation.
Note that MCLK cannot be derived from RCLK because during a Loss of Signal (LOS)
condition, transceiver timing is based on MCLK.
Ground. Ground return for the VCC power supply.
2
Bipolar Violation - Port 1. In the Unipolar I/O mode, this pin goes High to indicate
that a bipolar violation is detected at port 1.
Encoder Enable - Port 1. In the Unipolar I/O mode, a High on this pin enables the
B8ZS or HDB3 encoder/decoder for port 1.
Transmit Data - Port 1. In the Unipolar I/O mode, the data to be transmitted onto
the twisted-pair line from port 1 is input at this pin.
1
Table 5
(Continued)
for details.
Description
Description
page 24
1
for details.
13