Datasheet
8 Gbps Bi-Directional SFP+ Transceiver
SFP-8GD-SX
Features
Designed for SFF-8472 compliance (SFP) Up to 8.5 Gbps data rates - 2.125/4.25/8.5 Gbps Fibre Channel Multi-mode optics (Duplex LC) Dual-fiber, bi-directional Class 1 laser (Tx): 850 nm 50 m range on 50/125 μm MMF 150 m range on high-bandwidth 50/125 um (OM3) MMF Digital Diagnostics (SFF-8472) Extended operating temperature range RoHS compliant and Lead Free Metal enclosure, for lower EMI
Absolute Maximum Ratings*
Parameter Maximum Supply Voltage Case Operating Temperature Storage Temperature Relative Humidity (Non-Condensing) Symbol Vcc TA TS RH Minimum -0.5 -5 -40 0 Maximum 4.0 70 85 85 Unit V ºC ºC % Note -
*Exceeding the limits listed in the table may damage the transceiver module permanently
General Specifications
Parameter Data Rate Bit Error Rate Fiber Length on 50/125 μm MMF Fiber Length on 50/125 μm high-bandwidth (OM3) MMF Symbol BR BER L Minimum 2.125 Maximum 8.5 10-12 300 150 50 500 380 150 Unit Gbps m Note 1 2 3 4 5 3 4 5
L
-
m
Notes:
1. 2. 3. 4. 5.
2x and 4x Fibre Channel compatible, per “Fibre Channel Physical Interface-4 Specification (FC-PI-4 Rev. 7.00)”. American National Standard for Information Systems, September 20, 2007. PRBS 27-1. At 2.125 Gb/s Fibre Channel data rate. At 4.25 Gb/s Fibre Channel data rate. At 8.5 Gb/s Fibre Channel data rate.
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Datasheet
Electrical Specifications
Parameter Supply Voltage Supply Current Transmitter Input Differential Impedance Single Ended Data Input Swing Transmit Disable Voltage Transmit Enable Voltage Receiver Single Ended Data Output Swing Data Output Rise/Fall Time @ 2.125 Gbps, 4.25 Gbps Data Output Rise/Fall Time @ 8.5 Gbps LOS Fault LOS Normal Power Supply Rejection Deterministic Jitter Contribution @ 2.125 Gbps Total Jitter Contribution @ 2.125 Gbps Deterministic Jitter Contribution @ 4.25 Gbps Total Jitter Contribution @ 4.25 Gbps Deterministic Jitter @ 8.5 Gbps Pulse Width Shrinkage @ 8.5 Gbps Total Jitter @ 8.5 Gbps Notes: 1. 2. 3. 4. 5. 6. 7. V out, pp tr, tf tr, tf VLOS fault VLOS norm PSR RX Δ DJ RX Δ TJ RX Δ DJ RX Δ TJ RX DJ RX DDPWS RX TJ 170 2 Vee 100 -
Symbol Vcc Icc Rin V in, pp VD VEN
Minimum 3.00 80 90 2 Vee
Maximum 3.60 240 120 800 Vcc Vee + 0.8 400 120 60 VccHOST Vee + 0.8 47.1 123.5 23.5 61.8 49.4 42.4 83.5
Unit V mA Ω mV V V mV ps ps V V mVpp ps ps ps ps ps ps ps
Note 1 2 3 4 4 5 5 6 7 8 8 8 8
-
Connected directly to TX data input pins. AC coupling from pins into laser driver IC. Or open circuit. Into 100 ohms differential termination. Unfiltered, 20 – 80 % LOS is an open collector output. Should be pulled up with 4.7 k – 10 kohms on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5 V. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network. If measured with TJ-free data input signal. In actual application, output TJ will be given by: TJOUT = DJIN + ΔDJ + √ (TJIN - DJIN ) 2 + (ΔTJ - ΔDJ ) 2
8.
As defined in FC-PI-4, Rev 7.0, Table 13, 800-Mx-SN-y, “Fibre Channel Physical Interface-4 Specification (FC-PI-4 Rev. 7.00)”. American National Standard for Information Systems, September 20, 2007.
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Datasheet
Optical Specifications
Parameter Transmitter Output Optical Power: 50 or 62.5 MMF Optical Wavelength Spectral Width Optical Modulation Amplitude @ 2.125 Gbps Optical Modulation Amplitude @ 4.25 Gbps Optical Modulation Amplitude @ 8.5 Gbps Optical Rise/Fall Time @ 2.125, 4.25 Gbps Transmitter Waveform and Dispersion Penalty @ 8.5 Gbps Relative Intensity Noise Deterministic Jitter Contribution @ 2.125 Gbps Total Jitter Contribution @ 2.125 Gbps Deterministic Jitter Contribution @ 4.25 Gbps Total Jitter Contribution @ 4.25 Gbps Receiver Receiver OMA Sensitivity @ 2.125 Gbps Receiver OMA Sensitivity @ 4.25 Gbps Receiver OMA Sensitivity @ 8.5 Gbps Maximum Average Receiver Power Optical Center Wavelength Optical Return Loss LOS De-Assert LOS Assert LOS Hysteresis Notes: 1. 2. 3. 4. 5. RxSENS RxSENS RxSENS RxMAX λC LOSD LOSA 0 770 12 -30 0.5 -13.1 -12.1 -11.2 860 -18 dBm dBm dBm dBm nm dB dBm dBm dB POUT λ σ OMA OMA OMA tr, tf TWDP RIN TX Δ DJ TX Δ TJ TX Δ DJ TX Δ TJ -9 830 -7.1 -6.1 -5.2 -2 860 0.65 90 4.2 -128 56.5 119.6 28.2 59.8 dBm nm nm dBm dBm dBm ps dB dB/Hz ps ps ps ps 1 2 2 2 3 4 5 5 Symbol Minimum Maximum Unit Note
Class 1 Laser Safety per FDA/CDRH, and EN (IEC) 60825 laser safety standards. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average power. Unfiltered, 20-80%. Complies with FC 1x and 2x eye mask when filtered. TWDP is calculated with a 1.0 equalizer and a 6,860 MHz Gaussian filter for the fiber simulation. Jitter values at λT and λR are controlled by TWDP and stress receiver sensitivity. If measured with TJ-free data input signal. In actual application, output TJ will be given by: TJOUT = DJIN + ΔDJ + √ (TJIN - DJIN ) 2 + (ΔTJ - ΔDJ ) 2
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Datasheet
Pin Descriptions
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Notes: 1. 2. Function VEET TFAULT TDIS SDA SCA MOD_ABS RS0 LOS RS1 VEER VEER RDRD+ VEER VCCR VCCT VEET TD+ TDVEET Name/Description Transmitter Ground (Common with Receiver Ground) Transmitter Fault. Transmitter Disable. Laser Output Disabled on High or Open. 2-wire Serial Interface Data Line (MOD-DEF2) 2-wire Serial Interface Clock (MOD-DEF1) Module Absent, connected to VEET or VEER Rx Rate Select: Open or Low = 2.125 or 4.25 Gbps Fibre Channel (Low Bandwidth) High = 8.5 Gbps Fibre Channel (High Bandwidth) Loss of Signal Indication. Logic 0 Indicates Normal Operation. Tx Rate Select: Open or Low = 2.125 or 4.25 Gbps Fibre Channel (Low Bandwidth) High = 8.5 Gbps Fibre Channel (High Bandwidth) Receiver Ground (Common with Transmitter Ground) Receiver Ground (Common with Transmitter Ground) Receiver Inverted DATA Out. AC Coupled. Receiver Non-Inverted DATA Out. AC Coupled. Receiver Ground (Common with Transmitter Ground) Receiver Power Supply Transmitter Power Supply Receiver Ground (Common with Transmitter Ground) Transmitter Non-Inverted DATA In. AC Coupled. Transmitter Inverted DATA In. AC Coupled. Receiver Ground (Common with Transmitter Ground) Note 1 2 3 4 4 4 5 6 5 1 1 1 1 1
3. 4. 5.
6.
Circuit ground is internally isolated from chassis ground. TFAULT is an open collector/drain output, which should be pulled up with a 4.7 k – 10 kohms resistor on the host board if intended for use. Pull up voltage should be between 2.0 V to Vcc + 0.3 V. A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to < 0.8 V. Laser output disabled on TDIS > 2.0 V or open, enabled on TDIS < 0.8 V. Should be pulled up with 4.7 k – 10 kohms on host board to a voltage between 2.0 V and 3.6 V. MOD_ABS pulls line low to indicate module is plugged in. Rate select can also be set through the 2-wire bus in accordance with SFF-8472 v. 10.1. Rx Rate Select is set at Bit 3, Byte 110, Address A2h. Tx Rate Select is set at Bit 3, Byte 118, Address A2h. Note: writing a “1” selects maximum bandwidth operation. Rate select is the logic OR of the input state of Rate Select Pin and 2-wire bus. LOS is open collector output. Should be pulled up with 4.7 k – 10 kohms on host board to a voltage between 2.0 V and 3.6 V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
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Datasheet
Diagram of Host Board Connector Block Pin Numbers and Names
VeeT 1 VeeT TD2 TX_Fault TD+ 3 TX_Disable VeeT 4 SDA VccT
20
19
18
17
16
Towards Bezel
5
SCL VccR 15
6
MOD_ABS VeeR 14
Towards ASIC
7
RS0 RD+ 13
8
RX_LOS RD12
9
RS1 VeeR 11 VeeR
10
Mechanical Dimensions
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Datasheet
Ordering Information
Wavelength (nm) Description Max. Link Length (m)
0 -300
Connector
Data Rate (Mbps)
SFP-8GD-SX
SFP+, 2.125 / 4.25 / 8.5 Gbps, MM, with Digital Diagnostic.
2125 - 8500
850
Duplex LC
Black
Regulatory and Industry Compliances
Class 1 Laser Product, Complies with 21CFR 1040.10, 1040.11 and EN 60825-1 Certified by one or more of the following agencies: TÜV, UL, CSA RoHS Directive; China RoHS; California RoHS Law, REACH Directive SVHC
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MRV-OP-SFP8GDSX-031609
3020072-001 Rev. A1
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Bail Latch Color
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