WJLXT384LE.B1-868635 Cortina Systems Inc, WJLXT384LE.B1-868635 Datasheet - Page 92

• Manufacturer Part Number: WJLXT384LE.B1-868635
• Manufacturer: Cortina Systems Inc

Specifications of WJLXT384LE.B1-868635

• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Compliant

LXT384 Transceiver
Datasheet
248994, Revision 6.0
30 January 2008
Table 59
Table 60
Table 61
Cortina Systems
DC Characteristics
Table 60
transmitter.
LXT384 Transceiver E1 Transmit Transmission Characteristics
LXT384 Transceiver T1 Transmit Transmission Characteristics (Sheet 1 of 2)
®
Special Input Conditions for JASEL, LOOP7:0, and MODE
High-level input voltage
Low-level input current
High-level input current
1. Output drivers output CMOS logic levels into CMOS loads.
2. VCC supply refers to VCC0 or VCC1 only.
Output pulse
amplitude
Peak voltage of a
space
Transmit amplitude variation with supply
Difference between pulse sequences
Pulse width ratio of the positive and negative
pulses
Transmit transformer turns ratio for 75/120 Ω
characteristic impedance
Transmit return
loss 75 Ω coaxial
cable
Transmit return
loss 120 Ω twisted
pair cable
Transmit intrinsic jitter: 20 Hz to 100 kHz
Transmit path
delay
1. Guaranteed by design and other correlation methods.
Output pulse amplitude
Peak voltage of a space
Driver output impedance
Transmit amplitude variation with power
supply
LXT384 Octal T1/E1/J1 Short-Haul PCM Transceiver with Jitter Attenuation (JA)
1
1
(E1) and
Parameter
Parameter
Parameter
75 Ω
120 Ω
75 Ω
120 Ω
51 kHz to 102 kHz
102 kHz to 2.048 MHz
2.048 MHz to 3.072 MHz
51 kHz to 102 kHz
102 kHz to 2.048 MHz
2.048 MHz to 3.072 MHz
Bipolar mode
Unipolar mode
Table 61
1
(T1) list the AC characteristics for the LXT384 Transceiver
Sym.
V
I
I
INH
INL
INH
(2/3 VCC) +
Sym
–
–
–
–
–
–
–
–
–
Sym
–
–
–
–
Min.
0.2
2
-1
–
2.14
2.7
-0.237
-0.3
0.95
15
15
15
15
15
15
2.4
-0.15
–
-1
Min.
Min.
Typ.
Typ
3.0
–
1
–
2.37
3.0
1:2
17
17
17
20
20
20
0.030
2
7
Typ
TM
TM
3.6
+0.15
–
+1
Max
2.60
3.3
0.237
0.3
+1
200
1.05
–
–
0.050
Max
Max.
50
50
V
V
Ω
%
10.0 Electrical Characteristics
Unit
Unit
V
V
%
mV
dB
dB
U.I.
U.I.
U.I.
Measured at the DSX
@ 772 kHz
Unit
Tested at the line side
For 17 consecutive
pulses
At the nominal half
amplitude
Rt = 11 Ω ± 1%
Using components in
the LXD384 evaluation
board.
Using components in
the LXD384 evaluation
board
Tx path TCLK is jitter
free
JA Disabled
µA
μA
V
Test Condition
Test Condition
Test Condition
Page 92