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Optoway
GBB-7940G
FEATURES
l l l l l l l l l l l l l l
GBB-7940G
1
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(RoHS Compliant)
DESCRIPTION
1490 nm TX / 1310 nm RX , 5V / 1.25 Gbps Single-Mode WDM Gigabit Interface Converter (GBIC)
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1-Fiber SM Gigabit Interface Converter (GBIC) Compliant with GBIC Specification Rev. 5.5 Compliant with IEEE-802.3ah 1000BASE-BX Compliant with Fibre Channel FC-PH-2 for 100-M5-SN-1 and 100-M6-SN-1 Hot Pluggable Module with SC Connector 1490 nm LD Transmitter 1310 nm Receiver Up to 40 km using Single-mode Optic Cable SCA-2 Host Connector Single +5 V Power Supply RoHS Compliant Differential PECL Inputs and Outputs TTL RX-LOS Output Class 1 Laser International Safety Standard IEC 60825 Compliant
The GBB-7940G series single-mode optical transceivers meet the Gigabit Interface Converter (GBIC) specification Rev. 5.5. It satisfies the optical interface specifications defined in IEEE 802.3ah 1000BASE BX by using 1490 nm transmitter and 1310 nm receiver. The transmitter section uses a multiple quantum well DFB laser and is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses an integrated 1310 nm detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. A PECL input / output logic interface is used. TTL RX-LOS output simplifies interface to external circuitry. A 20-pin SCA-2 host connector is used to connect the converter to the host system.
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 WDM Gigabit Ethernet Links l SONET/SDH Equipment Interconnect l Fibre Channel Links
ORDER INFORMATION
P/No. GBB-7940G Bit Rate (Gb/s) 1.25 Distance (km) 40 TX (nm) 1490 DFB RX (nm) 1310 Package SC GBIC Temp TX Power (oC) (dBm) 0 to 70 2 to -3 RX Sens. (dBm) -23 RoHS Compliant Yes
Absolute Maximum Ratings
Parameter Storage Temperature Operating Case Temperature Power Supply Voltage Input Voltage Relative Humidity Symbol Tstg Topr Vcc --RH Min -40 -5 -0.5 -0.5 5 Max 85 70 6 Vcc 95 Units o C o C V V % Notes
Recommended Operating Conditions
Parameter Power Supply Voltage Power Supply Current Operating Case Temperature Data Rate Symbol Vcc ITX + IRX Topr Min 4.75 0 1000 Typ 5 200 1250 Max 5.25 300 70 Units V mA o C Mb/s
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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
12/1/2005 V2.0
Optoway
Transmitter Specifications (0 oC < Topr < 70 oC, 4.75V < Vcc < 5.25V)
Parameter Optical Optical Transmit Power Output Center Wavelength Output Spectrum Width Side Mode Suppression Ratio Extinction Ratio Optical Rise Time Optical Fall Time Relative Intensity Noise Total Jitter Max. Po at TX-Disable Asserted Electrical Differential Input Voltage Transmit Fault Load Transmit Fault Output-Low Transmit Fault Output-High TX-Disable Input - Low TX-Disable Input - High TX-Disable Assert Time TX-Disable Negate Time Time to initialize, includes reset of TX-FAULT TX FAULT from fault to assertion TX-Disable time to start reset Symbol Po SMSR ER tr tf RIN TJ Min -3 1480 30 9 0.26 0.26 -120 227 -35 0.65 4.7 0.0 Vcc - 0.5 0 2.0 2.0 10 0.5 Vcc + 0.3 0.8 Vcc + 0.3 10 1 300 100 10 Typ --Max 2 1500 1 Units dBm nm nm dB dB ns ns dB/Hz ps dBm Vp-p k V V V V s ms ms s s
GBB-7940G
Notes 1 -20 dB width
2
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20% to 80% value 20% to 80% value 2
VIH - VIL TX-FAULTLOAD VTX-FAULT-L VTX-FAULT-H V TX-DISABLE-L V TX-DISABLE-H t_off t-on t-int t-fault t-reset
3
Notes: 1. Output power is power coupled into a 9/125 m single mode fiber. 2. Measured with a 27-1 PRBS. 3. Pull-up resistor on host Vcc.
Receiver Specifications (0oC < Topr < 70oC, 4.75 V < Vcc < 5.25V)
Parameter Optical Sensitivity Maximum Input Power Signal detect - Hysteresis Wavelength of Operation Optical Return Loss RX-LOS - Asserted RX-LOS - Deasserted Electrical Differential Output Voltage Data Output Rise Time Data Output Fall Time RX-LOS of Light Load RX-LOS Output Voltage --- Low RX-LOS Outpu Voltage --- High RX-LOS Assert Time (off to on) RX-LOS Deassert Time (on to off) Symbol --Pin Min ---3 1.0 1260 12 ---31 0.37 Typ ----1360 -----23 --2.0 0.35 0.35 10 0.5 Vcc 100 100 Max -23 --Units dBm dBm dB nm dB dBm dBm Vp-p ns ns k V V s s Notes 4 4 5 Transition: low to high Transition: high to low
ORL Pa Pd VOH - VOL TrRX-DAT TfRX-DAT RX-LOSLOAD VRX-LOS-L VRX-LOS-H TA,RX-LOS TD,RX-LOS
4.7 0 2.4
6
Notes: 4. Minimum sensitivity and saturation levels at BER=1E-12 for a 2 7-1 PRBS. 5. At least 30 dB optical isolation for the wavelength 1480 to 1500 nm. 6. Pull-up resistor on host 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
12/1/2005 V2.0
Optoway
PIN ASSIGNMENT
GBB-7940G
3
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PIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Signal Name
RX-LOS RGND RGND MOD-DEF(0) MOD-DEF(1) MOD-DEF(2) TX-DIABLE TGND TGND TX-FAULT RGND -RX-DAT +RX-DAT RGND VCCR VCCT TGND +TX-DAT -TX-DAT TGND
Sequence
2 2 2 2 2 2 2 2 2 2 1 1 1 1 2 2 1 1 1 1
Description
Receiver Loss of Signal, logic high, open collector compatible, 4.7K to 10K ohm pull-up to VCCT on host Receiver Ground Receiver Ground TTL Low SCL Serial Clock Signal SDA Serial Data Signal Transmitter Disable, logic high, open collector compatible Transmitter Ground Transmitter Ground Transmitter Fault, logic high, open collector compatible, 4.7K to 10K ohm pull-up to V CCT on GBIC Receiver Ground Receiver Data Bar, Differential PECL, AC coupled Receiver Data, Differential PECL, AC coupled Receiver Ground Receiver +5V Supply Transmitter +5V Supply Transmitter Ground Transmitter Data, Differential PECL, AC coupled Transmitter Data Bar, Differential PECL, AC coupled Transmitter Ground
A sequence value of 1 indicates that the signal is in the first group to engage during plugging of a module. A sequence value of 2 indicates that the signal is the second and last group. The two guide pins on the connector are electrically connected to the transceiver circuit ground. These two guide pins make contact with circuit prior to sequence 1 signals.
Module Definition Module Definition
4
MOD-DEF(0) PIN 4
TTL Low
MOD-DEF (1) PIN 5
SCL
MOD-DEF (2) PIN 6
SDA
Interpretation by Host
Serial module definition protocol
Module Definition 4 specifies a serial definition protocol. For this definition, upon power up, MOD-DEF(1:2) appear as no connector (NC) and MOD-DEF(0) is TTL LOW. When the host system detects this condition, it activates the serial protocol. The protocol uses the 2-wire serial CMOS E 2PROM protocol of the ATMEL AT24C01A/02/04 family of components.
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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
12/1/2005 V2.0
Optoway
PACKAGE DIAGRAM
Units in mm
GBB-7940G
4
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Note: Specifications subject to change without notice.
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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
12/1/2005 V2.0

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