LT-74H73H-PG [OPTOWAY]
3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX 2X5 SFF Package, GE-PON OLT Transceiver; 3.3V ， 1.25 Gbps的1490纳米连续模式德克萨斯州/ 1.25 Gbps的1310纳米突发模式接收2X5 SFF封装， GE- PON OLT收发器
| 型号： | LT-74H73H-PG |
| 厂家： | 
OPTOWAY TECHNOLOGY INC |
| 描述： | 3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX 2X5 SFF Package, GE-PON OLT Transceiver |
| 文件： | 总5页 (文件大小：122K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1
Optoway
LT-74H73H-PG
*****************************************************************************************************************************************************************************
LT-74H73H-PG
(RoHS Compliant)
3.3V, 1.25 Gbps 1490 nm Continuous-Mode TX / 1.25 Gbps 1310 nm Burst-Mode RX
2X5 SFF Package, GE-PON OLT Transceiver (IEEE 802.3ah-2004 1000BASE PX20+)
****************************************************************************************************************************************************************************
FEATURES
l Optical Line Terminal (OLT) for IEEE 802.3ah-2004
1000BASE-PX20+
DESCRIPTION
LT-74H73H is an optical transceiver for optical line terminal (OLT)
for IEEE 802.3ah-2004 1000BASE-PX20+ applications. The
LT-74H73H is high performance module for single fiber
communications by using 1490 nm continuous-mode transmitter and
1310 nm high sensitivity burst-mode receiver with settling time less
than 400 ns. The transmitter section uses a 1490 nm DFB laser and is
a class 1 laser compliant according to International Safety Standard
IEC-60825. The receiver section uses an integrated 1310 nm
burst-mode Avalanche photodetector preamplifier mounted in an
optical header and a burst-mode limiting post-amplifier IC. Unlike
the conventional BM RX, the RX does not requires reset pulse to
receive optical data packets with different optical power.
LVPECL interface is used for differential inputs and outputs. A
LVTTL logic interface simplifies interface to external circuitry.
l 1-Fiber Bi-directional 1.25 Gbps WDM Transceiver for 20
km communication
l 1490 nm Continuous-Mode Transmitter
l 1310 nm Burst-Mode (BM) Receiver
l Resetless BM Receiver Design
l BM RX with Transceiver Settling Time less than 400 ns
l High Resistance of BM RX to DC Optical Background
l 0 to 70oC Operating Temperature
l 2x5 SFF Package with SC/PC Pigtail
l Single +3.3 V Power Supply
l RoHS Compliant
l Transmitter: AC Coupling Input
l Receiver: DC Coupling Output
l LVPECL Differential Inputs and Outputs
l LVTTL TX Shutdown Input
l LVTTL TX Laser Failure Alarm Output
l Wave Solderable and Aqueous Washable
l Class 1 Laser International Safety Standard IEC-60825
Compliant
LASER SAFETY
This single mode transceiver is a Class 1 laser product. It
complies with IEC-60825 and FDA 21 CFR 1040.10 and
1040.11. The transceiver must be operated within the
specified temperature and voltage limits. The optical ports of
the module shall be terminated with an optical connector or
with a dust plug.
APPLICATIONS
l Gigabit Ethernet PON System
ORDER INFORMATION
ORDER INFORMATION
P/No
Class
TX
λ (nm)
RX
Temp
(oC)
Package
RoHS
Compliant
Type Speed
(Gb/s)
Power Type Speed λ (nm) Sens.
(dBm)
(Gb/s)
(dBm)
1310 -8 / -30 0 / 70 SFF 2X5 Pig.
LT-74H73H-PG
PX20+ CNT
1.25
1490 DFB
7 / 2 BM, 2R 1.25
Yes
NOTE: 1. LT-XXXXXX-PWXG, SC/PC pigtail with fiber length 50 cm.
2. BM: Burst Mode; CNT: Continuous Mode; SFF: Small Form Factor Package.
*****************************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
3/1/2006 V1.0
2
Optoway
LT-74H73H-PG
*****************************************************************************************************************************************************************************
Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Unit
Notes
Power Supply Voltage
Input Voltage
Vcc
0
GND
0
4
V
V
Vcc
30
Output Current
Iout
Topr
Tstg
mA
oC
oC
oC
g
Operating Case Temperature
Storage Temperature
Soldering Temperature
Tension of Fiber
0
70
With air flow 1m/sec
-40
85
260
500
10 seconds on leads only
Bending Radius of Fiber
30
mm
Stress in excess of the maximum absolute ratings can cause permanent damage to the module.
Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Case Temperature
Supply Current
Symbol
Min.
3.13
0
Max.
3.47
70
Unit
V
Notes
3.3 V +/- 5%
Vcc
Topr
oC
With air flow 1m/sec
Icc TX+RX
300
mA
Transmitter Specifications ( 0oC < Topr < 70oC, 3.13V < Vcc < 3.47V )
Parameter
Symbol
Min.
Typ.
Max.
Units
Notes
Optical
Optical Transmit Power
Output Center Wavelength
Output Spectrum Width
Side Mode Suppression Ratio
Extinction Ratio
Po
l
2
7
1500
1
dBm
nm
1
1480
Δλ
nm
-20 dB Width
SMSR
30
9
dB
ER
dB
Data Rate
1.25
Gb/s
ns
Optical Rise Time
0.26
0.26
-120
0.15
20% to 80% Values
20% to 80% Values
Optical Fall Time
ns
Relative Intensity Noise
Total Jitter
RIN
dB/Hz
ns
Electrical
Data Input Current – Low
Data Input Current – High
Differential Input Voltage
Data Input Voltage – Low
Data Input Voltage -- High
Shutdown Input Voltage -- Low
Shutdown Input Voltage -- High
Shut Off Time for Tx Shutdown
-350
mA
mA
mV
V
350
2000
-1.58
-0.74
0.5
VIH - VIL
VIL - VCC
VIH - VCC
VTSHDN,L
VTSHDN,H
tDIS
150
-2.0
-1.1
0
2
2
V
V
TX Output Disable
TX Output Enable
2.0
Vcc
V
30
ms
1. Output power is power coupled into a 9/125 mm single mode fiber.
2. These inputs are compatible with 10K, 10KH and 100K ECL and LVPECL inputs.
*****************************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
3/1/2006 V1.0
3
Optoway
LT-74H73H-PG
*****************************************************************************************************************************************************************************
Receiver Characteristics ( 0oC < Topr < 70oC, 3.13V < Vcc < 3.47V )
Parameter
Symbol
Min.
Typ.
Max.
Units
Notes
Optical
Sensitivity
Sen
Sat
-30
dBm
dBm
nm
3
3
4
Saturation Optical Power
Wavelength of Operation
Data Rate
-8
1260
1360
1.25
Gb/s
ns
Settling Time
400
Sen +3
20
5, 6
DC Optical Tolerance
Optical Return Loss
Electrical
dB
dB
Data Output Voltage – Low
Data Output Voltage – High
Rest Between Packet
VOL - VCC
VOH - VCC
-2.0
-1.1
-1.58
-0.74
V
V
7
7
Resetless
3. Sensitivity and saturation levels at BER 1E-12 @ 27-1@ER=10. The burst packet data pattern follows 8B10B protocol.
4. At least 30 dB optical isolation for the wavelength 1480 to 1500 nm.
5. No reset is needed.
6. The optical power difference between neighboring packets is up to 15 dB.
7. These inputs are compatible with 10K, 10KH and 100K ECL and LVPECL outputs.
CONNECTION DIAGRAM
PIN
1
Signal Name
RX Ground
Description
Receiver Ground. Connect this pin to
ground plane.
PIN
10 TD-
Signal Name
Description
Negative transmitter data In. Internally
terminated for LVPECL. AC coupled.
Positive transmitter data In. Internally
terminated for LVPECL. AC coupled.
Transmitter Disable. TX is disabled
when this pin is low. Internally pulled to
“High”..
2
3
RX Vcc
NC
RX power supply input. Connect to 3.3
V power supply
9
8
TD+
No connection
TxDis
4
5
RX OUT (-)
RX OUT (+)
Negative RX output, Differential
LVPECL. DC coupled.
Positive RX output, Differential
LVPECL. DC Coupled.
Mounting Studs. Connect to Chassis
Ground
7
6
TX Ground
TX Vcc
Transmitter Ground. Directly connect
this plan to ground plane
TX power supply input. Connect to 3.3
V power supply
MS MS
*****************************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
3/1/2006 V1.0
4
Optoway
LT-74H73H-PG
*****************************************************************************************************************************************************************************
RECOMMENDED CIRCUIT SCHEMATIC
7
TX GND
8
TX Disable
Vcc3.3V
LD
Driver
9
TX+
TX-
Z=50R
Z=50R
LVPECL
100R
10
6
TX Vcc
Vcc 3.3V
1uH
10nF
10nF
10uF
1uH
2
RX Vcc
Vcc 3.3V
130R
10uF
Vcc 3.3V
LVPECL
130R
82R
RX-
4
5
TD-
Post
Z=50R
Z=50R
Amp
RX+
TD+
82R
1
RX GND
CDR or PHY DEVICE
SFF OLT Module
PACKAGE DIAGRAM
Units in mm
Note: Specifications subject to change without notice. The 50 +/- 3 cm long pigtail with a SC/PC connector is standard. If
non-standard pigtail is required, please make a contact with Optoway Technology Inc.
*****************************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
3/1/2006 V1.0
5
Optoway
LT-74H73H-PG
*****************************************************************************************************************************************************************************
RECOMMENDED CIRCUIT BOARD LAYOUT
Notes:
1. This figure describes the recommended circuit board layout for the SFF OLT Transceiver.
2. The hatched areas are keep-out areas reserved for housing standoff. No metal traces or ground connection in keep-out
area.
3. The mounting studs should be solder to chassis ground for mechanical integrity.
*****************************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC. No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
3/1/2006 V1.0
相关型号：
©2020 ICPDF网 联系我们和版权申明