PRE-SFP-OC Gb/s Transceiver, 1310 nm, 15 km (IR1), DDM

Transcription

1 Product Features Up to 2.67Gb/s Data Links Hot-Pluggable 1310nm DFB laser transmitter and PIN receiver Duplex LC connector RoHS compliant and Lead Free Up to 15 km on 9/125 µm SMF Single +3.3V Power Supply Low power dissipation, typically < 600 mw Very low EMI and excellent ESD protection Commercial (0 C to 70 C ) operating temperature Compliance SFP MSA Monitoring Interface Compliant with SFF-8472 RoHS compliant Class 1 Laser Safety per EN (IEC) regulations Applications SONET OC-12/SDH STM4 Other Optical Links Description Precision Optical Transceivers PRE-SFP-OC48-15 Transceiver is a high performance, cost effective module which has a Duplex LC optics interface, standard AC coupled CML for high speed signal and LVTTL control and monitor signals. The PRE-SFP-OC48-15 has a PIN receiver and a 1310 nm a DFB laser transmitter. The nominal 13dB link budget ensures SONET OC-48/SDH STM-16 transmission over 15 km. Absolute Maximum Ratings Parameter Symbol Min. Typical Max. Unit Storage Temperature T S C Supply Voltage V CC T, R V Relative Humidity RH 0 85 % 1

2 Recommended Operating Environment Parameter Symbol Min. Typical Max. Unit Case operating Temperature Commercial T C C Supply Voltage V CCT, R V Supply Current I CC 300 ma Power Dissipation PD 0.6 W Electrical Characteristics (T OP = 0 to 70 C, V CC = 3.0 to 3.60 Volts) Parameter Symbol Min. Typical Max. Unit Note Supply Voltage Vcc V Supply Current Icc ma Inrush Current I surge Icc+30 ma Maximum Power P max 0.6 W Transmitter Section: Input differential impedance R in Ω 1 Single ended data input swing V in PP mvp-p Transmit Disable Voltage V D Vcc 1.3 Vcc V 2 Transmit Enable Voltage V EN Vee Vee+ 0.8 V Transmit Disable Assert Time T dessert 10 µs Receiver Section: Single ended data output swing Vout,pp mv 3 Data output rise time t r 150 ps 4 Data output fall time t f 150 ps 4 LOS Fault V losfault Vcc 0.5 V CC_host V 5 LOS Normal V los norm V ee V ee +0.5 V 5 Power Supply Rejection PSR 100 mvpp 6 Deterministic Jitter Contribution RXΔDJ 51.7 ps 7 Total Jitter Contribution RXΔTJ ps Notes: 1. AC coupled. 2. Or open circuit. 3. Into 100 ohm differential termination % 5. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected. 6. All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5MHz up to specified value applied through the power supply filtering network shown on page 23 of the Small Form-factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 14, Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and. DJ. 2

3 Optical Parameters (T OP = -40 to 85 C, V CC = 3.00 to 3.60 Volts) Parameter Symbol Min. Typical Max. Unit Note Transmitter Section: Center Wavelength λ c nm 1 Spectral Width σ 1 nm Optical Output Power P out -5 0 dbm 2 Optical Rise/Fall Time t r / t f 150 ps 3 Extinction Ratio ER 8.2 db Deterministic Jitter Contribution TXΔDJ 56.5 ps 4 Total Jitter Contribution TXΔTJ 119 ps Eye Mask for Optical Output Receiver Section: Compliant with Eye Mask Defined in IEEE standard Optical Input Wavelength λ nm Optical Input Power P in dbm 5,6 Receiver Reflectance 12 db Receiver Overload P ol -3 dbm 5,6 RX Sensitivity Sen -18 dbm 5,6 RX_LOS Assert LOS A -30 dbm RX_LOS Deassert LOS D -20 dbm RX_LOS Hysteresis LOS H db General Specifications: Data Rate BR 2.5 Gb/s Bit Error Rate BER Max. Supported Link Length on LMAX 15 km 7 9/125μm SMF@622Mb/s Total System Budget LB 13 db 8 Notes: 1. Specified to meet curves in FC-PI 13.0 Figures 18 and 19, which allow trade-off between wavelength and spectral width. 2. Class 1 Laser Safety per FDA/CDRH and EN (IEC) regulations. 3. Unfiltered, 20-80%. Complies with ITU-T G.957 eye masks when filtered. 4. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and. DJ. 5. Measured with conformance signals defined in FC-PI 13.0 specifications. 6. Measured with PRBS at BER 7. Dispersion limited per FC-PI Rev Attenuation of 0.45 db/km is used for the link length calculations. 3

4 Digital Diagnostic Monitor Characteristics The following digital diagnostic characteristics are defined over the Recommended Operating Environment unless otherwise specified. It is compliant to SFF8472 Rev10.2 with internal calibration mode. For external calibration mode please contact our sales staff. Parameter Symbol Min. Max. Unit Temperature monitor absolute error DMI_Temp -3 3 ⁰C Laser power monitor absolute error DMI_TX -3 3 db RX power monitor absolute error DMI_RX -3 3 db Supply voltage monitor absolute error DMI_VCC V Bias current monitor DMI_Ibias -10% 10% ma Block Diagram of Transceiver +TX_ DAT -TX_ DAT TX_ Disable TX_ Fault LD Driver LD TOSA MOD_DEF(0) MOD_DEF(1) MOD_DEF(2) +RX_DAT -Rx_ DAT Rx_ LOS MOD_DEF Post-Amp ROSA Pre-Amp Pin Assignments Host Board Connector Block Pin Numbers and Names 4

5 SFP Host Board Mechanical Layout 5

6 Pin Description Pin No Name Function Plug Seq Notes 1 VeeT Transmitter Ground TX Fault Transmitter Fault Indication 3 3 TX Disable Transmitter Disable MOD-DEF2 Module Definition MOD-DEF1 Module Definition MOD-DEF0 Module Definition Rate Select Not Connected LOS Loss of Signal VeeR Receiver Ground VeeR Receiver Ground VeeR Receiver Ground 1 12 RD- Inv. Received Data Out RD+ Received Data Out VeeR Receiver Ground VccR Receiver Power VccT Transmitter Power 2 17 VeeT Transmitter Ground 1 18 TD+ Transmit Data In TD- Inv. Transmit In VeeT Transmitter Ground 1 Notes: 1. Circuit ground is internally isolated from chassis ground. 2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V. 3. Should be pulled up with 4.7k - 10 kohms on host board to a voltage between 2.0V and 3.6V.MOD_DEF(0) pulls line low to indicate module is plugged in. 4. Rate select is not used 5. LOS is open collector output. Should be pulled up with 4.7k 10 kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. 6. AC Coupled Recommended Circuit Host Board VCC(3.3V) SFP Module VCCT TX_Disable 4K7 to10kω TX_Fault PECL Z=50Ω Z=50Ω 100Ω Laser Driver Z=50Ω PECL 100Ω Z=50Ω Amplifer RX_LOS 4K7 to10kω VCC(3.3V) 3X4K7 to10kω MOD_DEF(2) MOD_DEF(1) EEPROM MOD_DEF(0) RGND SFP Host Recommended Circuit 6

7 Data Address Serial ID Memory Contents (A0h) Base ID Fields Length (Byte) Name 0 1 Identifier Type of Serial transceiver (03h=SFP) Description and Contents 1 1 Reserved Extended identifier of type serial transceiver (04h) 2 1 Connector Code of optical connector type (07=LC) Transceiver 2.5Gb/s OC-48 / STM Encoding 8B10B (01h) 12 1 BR, Nominal Nominal baud rate, unit of 100Mbps 13 1 Reserved (0000h) 14 1 Length(9µm,km) Link length supported for 9/125µm fiber, units of km 15 1 Length(9µm) Link length supported for 9/125µm fiber, units of 100m 16 1 Length(50µm) Link length supported for 50/125µm fiber, units of 10m 17 1 Length(62.5µm) Link length supported for 62.5/125µm fiber, units of 10m 18 1 Length(Copper) Link length supported for copper, units of meters 19 1 Reserved Vendor Name SFP vendor name: 36 1 Reserved Vendor OUI SFP transceiver vendor OUI ID Vendor PN Part Number (ASCII) Vendor rev Revision level for part number Reserved 63 1 CCID Least significant byte of sum of data in address 0-62 Extended ID Fields Option Indicates which optical SFP signals are implemented (001Ah = LOS, TX_FAULT, TX_DISABLE all supported) 66 1 BR, max Upper bit rate margin, units of % 67 1 BR, min Lower bit rate margin, units of % Vendor SN Serial number (ASCII) Date code Manufacturing date code 92 1 Diagnostic Monitoring Type 93 1 Enhanced Options Digital diagnostic monitoring implemented, externally calibrated is implemented, RX measurement type is Average Power. Optional Alarm/Warning flags implemented for all monitored quantities, Optional Soft TX_FAULT monitoring implemented, Optional Soft RX_LOS monitoring implemented SFF_8472 Compliance Includes functionality described in Rev9.3 SFF CCEX Check code for the extended ID Fields (addresses 64 to 94) Vendor Specific ID Fields Readable Vendor specific date, read only 7

8 Diagnostics Memory Contents (A2h) Data Length Address (Byte) Name Description and Contents Diagnostic and control/status fields A/W Thresholds Diagnostic Flag Alarm and Warning Thresholds Unallocated Ext Cal Constants Diagnostic calibration constants for optional External Calibration Unallocated 95 1 CC_DMI Check code for Base Diagnostic Fields (addresses 0 to 94) Diagnostics Diagnostic Monitor Data (internally or externally calibrated) Unallocated Status/Control Optional Status and Control Bits Reserved Reserved for SFF Alarm Flags Diagnostic Alarm Flag Status Bits Unallocated Warning Flags Diagnostic Warning Flag Status Bits Ext Status/Control Extended module control and status bytes General use fields Vendor Specific Vendor specific memory addresses User EEPROM User writable non-volatile memory Vendor Control Vendor specific control addresses 8

9 Mechanical Dimensions 9