WJLXT384LE.B1-868635 Cortina Systems Inc, WJLXT384LE.B1-868635 Datasheet - Page 55

• 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
Figure 6
Cortina Systems
Component
D1–D4
TVS1
R
R
T
R
LXT384 Transceiver External Transmit/Receive Line Circuitry
®
1
2
3
4
68μF
3.3V
LXT384 Octal T1/E1/J1 Short-Haul PCM Transceiver with Jitter Attenuation (JA)
Common decoupling capacitor for all TVCC and TGND pins.
Typical value. Adjust for actual board parasitics to obtain optimum return loss.
Refer to Transformer Specifications Table for transformer specifications.
DC blocking capacitor needed when pulse shaping is disabled. See pin
description for TCLK7, pin 2 of QFP package in Table 1.
0.1μF
International Rectifier* — 11DQ04 or 10BQ060
Motorola* — MBR0540T1
SGS-Thompson* — SMLVT 3V3 3.3 V Transient Voltage Suppressor (TVCC = 3.3 V)
Semtech* — SMCJ5.0AC 5.0 V Transient Voltage Suppressor (TVCC = 5.0 V)
1
TVCC
GND
VCC
11.0 Ω ± 1%
9.31 Ω ± 1%
75 Ω Coax
0.1μF
(ONE CHANNEL)
Transceiver
LXT384
TVCC
TVS1
120 Ω Twisted Pair
RRING
TRING
RTIP
TTIP
15.0 Ω ± 1%
11.0 Ω ± 1%
TVCC
TVCC
1kΩ
1kΩ
D4
D2
D3
D1
0.47μF
R
R
R
R
100 Ω Twisted Pair
R
560pF
R
T
0.22μF
2
T
TVCC = 5 V
12.4 Ω ± 1%
TM
TM
9.1 Ω ± 1%
1:2
1:2
3
6.5 Line-Interface Protection
Rx LINE
Tx LINE
100 Ω Twisted Pair
12.4 Ω ± 1%
TVCC = 3 V
0 Ω
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