LC-2488A4H1H [ETC]
Telecommunication IC ; 电信IC\n型号: | LC-2488A4H1H |
厂家: | ETC |
描述: | Telecommunication IC
|
文件: | 总7页 (文件大小:117K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
FEATURES
• Compliant with SFF Transceiver MSA
Specification
• Compliant with Specifications for SONET OC-48/SDH
STM-16
• RJ-45 style LCTM connector system
• 1310 nm Fabry-Perot Laser Source Technology
• Data Link up to 2km in 9/125 Signal Mode Fiber
• Single + 3.3V Power Supply and TTL Logic
Interface
• 2x5 LC SFF small footprint utilized in high density
application
• Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Product Description
The LC-2488B4H2 from DELTA ELECTRONIC is a hot
pluggable 3.3V Small Form-Factor transceiver module
designed expressly for high-speed bi-directional communi-
cation applications that require rates of up to 2.488 Gbit/sec.
It is compliant with the SONET OC-48 / SDH STM-16
standards, as well as the SFF Multisource Agreement.
The LC-2488B4H2 transceivers provide with the LC
receptacle that is compatible with the industry standard LC
connector. The transceiver is supplied in the industry
standard 2x5 DIP style and is footprint compatible with SFF
Multi Source Agreement(MSA).
ORDERING INFORMATION
LC - 2488 B 4 H 2 X
TEMPERATURE
DATA RATE
BLANK
H
T
0~70 deg C
-10~85 deg C
-40~85 deg C
WAVE LENGTH
850 nm
B 1310 nm
C 1550 nm
A
COUPLING TYPE
1
2
DC / DC
AC / AC
SD LEVEL
The transmitter section of LC-2488B4H2 consists of an
1310 nm Fabry-Perot (FP) Laser in an optical subassembly
(OSA) while the receiver consists of a GaAs PIN photo -
diode mounted together with a transimpedance preamplifier.
The post-amplifier of the LC-2488B4H2 also includes a
Signal Detect circuit which provides a TTL logic-high
output when an unusable optical signal level is detected.
The LC-2488B4H2 transceiver is a Class 1 eye safety
product.The optical power levels, under normal operation,
are at eye safe level.
4
TTL
LINK DISTANCE
H
I
Q 10km in 9/125 um SMF
E 200m in 62.5/125 um MMF,
500m in 50/125 um MMF
F 300m in 62.5/125 um MMF,
550m in 50/125 um MMF
2km in 9/125 um SMF
5km in 9/125 um SMF
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
Absolute Maximum Ratings
Parameter
Supply voltage
Storage temperature
Lead soldering temperature
Lead soldering time
Symbol
Min.
-0..5
-40
Typ.
Max.
5
85
240
10
Unit
V
℃
Note
Note
Vcc
Ts
TSOLD
tSOLD
℃
sec.
Recommended Operating Conditions
Parameter
Ambient Operating
Temperature
Symbol
TA
Min.
0
Typ.
Max.
70
Unit
℃
Supply voltage
Transmitter Differential
Input Voltage
Vcc
3.15
0.4
3.45
1.6
V
VD
V
Data Output Load
Ω
RDL
50
Electrical Characteristics(T A =0 degC to 70 degC , V C C=3.15V to 3.45V )
Parameter
S y m b o l
M i n .
Typ.
Max.
U n i t
Note
T R A N S M I T T E R
S u p p l y c u r r e n t
I c c
1 6 0
m A
R E C E I V E R
S u p p l y c u r r e n t
I c c
V D
1 3 0
1 .2
m A
V
D a t a o u t p u t d i f f e r e n t i a l
v o l t a g e
0 . 5
0 . 7
O u t p u t D a t a r i s e t i m e
O u t p u t D a t a f a l l t i m e
S i g n a l D e t e c t O u t p u t -H i g h
t r
t f
1 5 0
1 5 0
3 . 4 5
p s
p s
R e f 1
R e f 1
V LH
2
0
S i g n a l D e t e c t O u t p u t -L o w
V LL
0 . 8
Notes:
R e f 1 . T h e s e a r e 2 0 % ~ 8 0 % v a l u e s
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
Optical Characteristics
(T =0 degC to 70 degC , VCC=3.15V to 3.45V )
A
Parameter
Symbol Min.
Typ.
Max.
Unit
Note
TRANSMITTER
Launched power(avg.)
Optical extinction ratio
Center wavelength
Spectral width(RMS)
Optical risetime
PO
-10
8.2
-6
-3
dBm
dB
Ref 1
λ
c
1270
1310
1355
4
nm
σ
tr
nm (rms)
ps
100
225
Ref 2
Ref 2
Optical falltime
tf
ps
RECEIVER
Optical input sensitivity(avg.)
Optical input saturation(avg.)
Optical wavelength
PIN
-18
dBm
dBm
nm
Ref 3
Ref 4
PSAT
-3
λ
1310
Signal detect- Assert
PA
PD
-18
4
dBm
dBm
dB
Signal detect- Deassert
Signal detect- Hysteresis
-30
0.5
PA -PD
Notes:
Ref 1. The maximum optical output power complies with class 1 laser eye safety.
Ref 2. These are unfiltered 20-80% values.
Ref 3. The receive sensitivity is measured using a worst case extinction ratio penalty BER better than or
equal to 1x10-12 in the center of the eye opening with 223-1 NRZ PRBS
Ref 4. Measured with 223-1 NRZ PRBS
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
Connection Diagram
Rx
T x
Mounting Studs / Soder Posts
Mounting Studs / Soder Posts
Top
View
Receiver Ground
Receiver Power Supply
Signal Detect
1
2
3
4
5
10
Transmitter Input Data Bar
Transmitter Input Data
Transmitter Disable
9
8
7
6
Receiver Output Data Bar
Receiver Output Data
Transmitter Gound
Transmitter Power Supply
Pin Descriptions
Pin Name
Pin#
Description
Receiver Ground
1
Directly connect this pin to the receiver ground plane
Provide +3.3V dc via the recommended receiver power supply
filter circuit.
Receiver Power Supply
2
3
4
5
Receiver Signal Detect TTL output. Active high on this line
indicates a received optical signal
Receiver data inverted differential AC coupled PECL
compatible output
Receiver data non-inverted differential AC coupled PECL
compatible output
Signal Detect
Receiver Output Data Bar
Receiver Output Data
Provide +3.3V dc via the recommended transmitter power
supply filter circuit.
Transmitter Power Spply
Transmitter Gound
6
7
8
Directly connect this pin to the transmitter ground plane
Connect this pin to +3.3V TTL logic high ‘ 1’ to disable module.
To enable module, connect this pin to TTL logic low ‘ 0’ .
Transmitter data inverted differential AC coupled PECL
compatible input
Transmitter Disable
Transmitter Input Data
9
Transmitter data non-inverted differential AC coupled PECL
compatible input
Transmitter Input Data Bar
10
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
Recommended Circuit Schematic :
VCCSerDes
3.3V
8
TXDIS
TTL LogicLevel
VCC
TX+
TX-
TXGND
7
9
Transmitter
TxD
TxD
Laser
ECL/
PECL
100R
Driver
10
DRIVER
VCCTx
VCCRx
6
VCC
3.3V
L2
Se r ia lize r /
De s e r ia liz e r
DeltaTransceiver
C1
C2
2
3
C3
Receiver
L1
Tr a n s c e ive r
Ch ip
SD
Signaldetect
SD to upper level
RxD
5
4
1
RD-
RD+
Post
Amp
Pre-
Amp
Re c e ive r
P LL e t c .
RxD
RxGND
Input Level (LV-TTL)
TX Function
Low
High
NIC
ON
OFF
ON
Table 1 (Disable Pin Truth Table)
C1/2/3 = 4.7 uF
L1/2
= 1 uH
Value of R5/6/9/10/11/12 may vary as long as proper 50 W termination or 100 W differential
Is Provided.For good EMI performance ,the power supply filter is required.Use short tracks from the inductor
L1/2 to the module VccTx/VccRx.
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
SFF Transceiver Package Dimensions
LC-2488B4H2 Single Mode Laser Small
Form Factor Transceiver for SONET
OC-48 / SDH STM-16
DELTA ELECTRONICS, INC.
Regulatory Compliance
Test Item
Reference
Qty’
5
Evaluation
(#1)
FCC Class B
Electromagnetic Interference
EMI
EN 55022 Class B
CISPR 22
(#2) Immunity
:
EN 61000-4-3
Radio Frequency
5
5
Electromagnetic Field
IEC 1000-4-3
EN 61000-4-2
:
(#3) Immunity
Electrostatic Discharge to
the Duplex LC Receptacle
IEC 1000-4-2
IEC 801.2
(1) Satisfied with electrical
characteristics of product
spec.
(#4) Electrostatic Discharge
to the Electrical Pins
(2) No physical damage
MIL-STD-883C
Method 3015.4
5
EIAJ#1988.3.2B
Version 2,
Machine model
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