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Optoway
LT-54B33B-PG / LT-54B33B-P-AG
LT-54B353B-PG
1
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(RoHS Compliant)
3.3V / 622 Mbps 1490 nm Continuous-Mode TX / 155 Mbps 1310 nm Burst-Mode RX ITU-T G.983.3 B-PON CLASS B 2X5 SFF OLT Transceiver
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FEATURES
l Class B Optical Line Terminal (OLT) for ITU-T G.983.3 B-PON l 622 Mbps / 1490 nm Continuous-Mode Transmitter l 155 Mbps / 1310 nm Burst-Mode Receiver with 2R Output l Resetless BM Receiver Design l BM RX capable of handling Packet-to-packet spacing less than 50 ns for over 15dB packet optical power difference l High Resistance of BM RX to DC Optical Background l 0 to 70oC Operating: LT-54B33B-PC l -20 to 85oC Operating: LT-54B33B-PC-A l 2x5 SFF Package with SC/PC Pigtail l Single +3.3 V Power Supply l RoHS Complaint 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
DESCRIPTION
LT-54B33B series is ITU-T G.983.3 Class B optical line terminal (OLT) for 622 Mbps/1490 nm in downstream and 155 Mbps/1310 nm in upstream. The transmitter section uses a multiple quantum well 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 detector preamplifier (IDP) 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.
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 B-PON System
ORDER INFORMATION
P/No Class Type LT-54B33B-PG LT-54B33B-P-AG B B CNT CNT Speed (Gb/s) 622 622 TX (nm) 1490 DFB 1490 DFB Power Type RX Speed (nm) Sens. (dBm) (Gb/s) 4 / -1 BM, 2R 155 4 / -1 BM, 2R 155 Temp ( C)
o
Package
RoHS Compliant Yes Yes
(dBm) 1310 -8 / -31 0 / 70 SFF 2X5 Pig. 1310 -8 / -31 -20 / 85 SFF 2X5 Pig.
NOTE: 1. LT-XXXXXX-P-XG, SC/PC pigtail with fiber length 50 cm. 2. BM: Burst Mode; CNT: Continuous Mode; SFF: Small Form Factor Package.
Absolute Maximum Ratings
Parameter Storage Temperature Operating Case Temperature Power Supply Voltage Symbol Tstg Topr Vcc Min -40 0 -20 -0.5 Max 85 70 85 3.6 Units o C o C V Notes LT-54B33B-P LT-54B33B-P-A
Recommended Operating Conditions
Parameter Power Supply Voltage Operating Case Temperature Power Supply Current Symbol Vcc Topr ICC (TX+RX)
o
Min 3.13 0 -20
Max. 3.47 70 85 300
Unit V o C mA
Units / Notes V LT-54B33B-P LT-54B33B-P-A
Note 1: When surrounding temperature is above 60 C, air flow at rate higher than 1m/sec is required.
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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 V3.0
Optoway
Transmitter Specifications ( 0oC < Topr < 70oC, 3.13V < Vcc < 3.47V )
Parameter Symbol Min. Typ. Max. Units dBm nm nm dB dB Gb/s ns ns dB/Hz ns A A mV V V V V s Optical Optical Transmit Power Po -1 4 Output Center Wavelength 1480 1500 Output Spectrum Width 1 SMSR Side Mode Suppression Ratio 30 Extinction Ratio ER 10 Data Rate 1.244 Optical Rise Time 1 Optical Fall Time 1 Relative Intensity Noise RIN -120 Total Jitter 0.55 Electrical Data Input Current - Low -350 Data Input Current - High 350 Differential Input Voltage VIH - VIL 150 2000 Data Input Voltage - Low VIL - VCC -2.0 -1.58 Data Input Voltage -- High VIH - VCC -1.1 -0.74 Shutdown Input Voltage -- Low VTSHDN,L 0 0.8 Shutdown Input Voltage -- High VTSHDN,H 2.0 Vcc Shut Off Time for Tx Shutdown tDIS 30 1. Output power is power coupled into a 9/125 m single mode fiber. 2. These inputs are compatible with 10K, 10KH and 100K ECL and LVPECL inputs.
LT-54B33B-PG
Notes 1 -20 dB Width
2
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10% to 90% Values 10% to 90% Values
2 2 TX Output Disable TX Output Enable
Receiver Characteristics ( 0oC < Topr < 70oC, 3.13V < Vcc < 3.47V )
Parameter Optical Sensitivity Saturation Optical Power Wavelength of Operation Data Rate Packet-to-Packet Spacing DC Optical Tolerance Optical Return Loss Electrical Data Output Voltage - Low Data Output Voltage - High Rest Between Packet Symbol Sen Sat Min. Typ. Max. -31 -8 1260 155 50 Sen +3 20 VOL - VCC VOH - VCC -2.0 -1.1 -1.58 -0.74 Resetless 1360 Units dBm dBm nm Mb/s ns dB dB V V Notes 3 3 4 5, 6
7 7
3. Sensitivity and saturation levels at BER 1E-10 for a 223-1 @ER=10. 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.
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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 V3.0
Optoway
BM CLOCK & DATA RECOVERY
OPTICAL PACKET-1
RECEIVED OPTICAL SIGNAL
LT-54B33B-PG
3
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OPTICAL PACKET-2
BM RX OUTPUT
BM CDR OUTPUT (SYNC. WITH SYSTEM CLK)
SYSTEM CLK SYNC. WITH SYSTEM CLK
OPTICAL INPUT
BM RX OUT
ZTLT-35L33L-K LT-54B33B-PG
ZB155CDR ZB155CDR BMCDR BM CDR
RECOVERED DATA
SYSTEM CLK
CONNECTION DIAGRAM
PIN
1 2 3
Signal Name
RX Ground RX Vcc NC
Description
Receiver Ground. Connect this pin to ground plane. RX power supply input. Connect to 3.3 V power supply No connection
PIN
10 9 8
Signal Name
TDTD+ TxDis
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".. Transmitter Ground. Directly connect this plan to ground plane TX power supply input. Connect to 3.3 V power supply
4 5 MS
RX OUT (-) RX OUT (+) MS
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
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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 V3.0
Optoway
RECOMMENDED CIRCUIT SCHEMATIC
TX GND 7 8 TX Disable
LT-54B33B-PG
4
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Vcc3.3V
LD Driver 100R
TX+
9 Z=50R LVPECL
TXTX Vcc
10 6 1uH 10nF 10uF 1uH Z=50R Vcc 3.3V
RX Vcc
2 10nF 10uF Vcc 3.3V Vcc 3.3V 130R 130R TDLVPECL TD+ 82R 82R
RXPost Amp
4 Z=50R
RX+
5 Z=50R
RX GND
1 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.
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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 V3.0
Optoway
RECOMMENDED CIRCUIT BOARD LAYOUT
LT-54B33B-PG
5
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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.
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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 V3.0

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