Transceivers with Digital Diagnostics

Transcription

1 Multi-rate OC-/STM- SFP Transceivers with Digital Diagnostics TPE-E SM MULTI-ATE Pro d uc t D e sc rip tio n The TPE-E SM SFP series of multi-rate fiber optic transceivers w ith integrated digital diagnostics monitoring functionality provide a quick and reliable interface for OC- short reach (S),intermediate reach (I) and long reach (L) applications. The diagnostic functions,alarm and w arning features as described in the Multi-Source Agreement (MSA) document,sff-7 (ev. 9.),are provided via an I C serial interface. Available products under this series are compliant w ith SONET/SDH standards for OC-/STM- applications and are capable of operating dow n to Mb/s data rate. The S- and I- versions are compliant w ith OC-/STM- and OC-/STM- interface standards. A ll modules satisfy Class I Laser Safety requirements in accordance w ith the U.S. and international standards as described in the FDA /CDH and IEC-0 documents,respectively. The TPE-E SM multi-rate transceivers connect to standard 0-pad SFP connectors for hot plug capability. This allow s the system designer to make configuration changes or maintenance by simply plugging in different types of transceivers w ithout shutting dow n the pow er supply of the host system. The transceivers have colored bail-type latch,w hich offer an easy and convenient w ay to release the modules. The latch is compliant w ith the SFP MSA. The transmitter design incorporates a highly reliable 0nm or 0nm InG aa sp laser and an integrated driver circuit. The receiver features a transimpedance amplifier IC optimized for high sensitivity and w ide dynamic range. The transmitter and receiver DATA interfaces are ACcoupled internally. LVTTL Transmitter Disable control input and Loss of Signal output interfaces are also provided. The transceivers operate from a single +.V pow er supply over tw o operating case temperature ranges of - C to +70 C (COM) or -0 C to + C (IND). The housing is made of metal for EMI immunity. Fe a ture s þ Compliant w ith SONET/SDH OC-/STM- (Mb/s) þ Compatible w ith SONET/SDH OC-/STM- (Mb/s) þ Compatible w ith SFP MSA þ SONET/SDH eaches (S-,I-,L- & L-) þ Digital Diagnostics through Serial Interface þ Internal Calibration for Digital Diagnostics þ Eye Safe (Class I Laser Safety) þ Duplex LC Optical Interface þ -0 C to + C Operating Temperature Option þ Excellent EMI & ESD Protection þ H ot-pluggable þ TX Fault & Loss of Signal Outputs þ TX Disable Input þ Single +.V Pow er Supply Absolute Maximum atings Parameter Symbol Minimum Maximum Units Storage Temperature T st C Operating Case Temperature COM T IND op C Supply Voltage V cc V Input Voltage V in V Measured on top side of SFP module at the front center vent hole of the cage. An Oplink Company ,ev.A 00--

2 T PE-E Single Mode Multi-rate Transmitter Performance C haracteristics (Over Operating Case Temperature, V CC =. to.7v) Operating Data ate B - Mb/s Average Optical Output Pow er (coupled into single mode ber), 0% duty cycle S- & I P L- & L- O Transmitter OFF Output Pow er P OFF dbm Extinction atio Center W avelength Spectral W idth (MS) S- & I P hi /P L- & L- lo S- I-! C L- 0 0 L S "! I- MS - -. or.0 Spectral W idth (-0dB) L- & L- "! nm Side Mode Suppression atio L- & L- SMS db Optical Output Eye Compliant w ith Telcordia G --COE and ITU -T ecommendation G.97 For I version,the center w avelength is either 7nm λc nm for Δ λ MS.nm or 9nm λc nm for Δ λ MS.0nm dbm db nm nm eceiver Performance C haracteristics (Over Operating Case Temperature, V CC =. to.7v) Operating Data ate B - Mb/s eceiver Sensitivity (0-0 BE) P min dbm Maximum Input Optical Pow er (0-0 BE) P max dbm Increasing Light Input P LOS Thresholds los Decreasing Light Input P los dbm LOS Timing Delay Increasing Light Input t_loss_o# Decreasing Light Input t_loss_on µs LOS H ysteresis db W avelength of Operation! nm eceiver e ectance (L-) db Specified in average optical input pow er and measured at Mb/s & Mb/s and 0nm w avelength (0nm for L-)w ith - PBS,and at Mb/s w ith 7 - PBS. Laser Safety: All transceivers are Class I Laser products per FDA/CDH and IEC-0 standards. They must be operated under speci!ed operating conditions. Oplink Communications, Inc. DATE OF MA NU FACTU E: This product complies w ith CF 00.0 and 00. Meets Class I Laser Safety equirements ,ev.A 00--

3 T PE-E Single Mode Multi-rate Transmitter Electrical Interface (Over Operating Case Temperature, V CC =. to.7v) Input Voltage Sw ing (TD+ & TD-) V PP-DIF V Input H IG H Voltage (TX Disable) V IH.0 - V CC V Input LOW Voltage (TX Disable) V IL 0-0. V Output H IG H Voltage (TX Fault) V OH.0 - V CC + 0. V Output LOW Voltage (TX Fault) V OL 0-0. V Di erential peak-to-peak voltage. There is an internal.7 to 0kΩ pull-up resistor to VccT. Open collector compatible,.7 to 0kΩ pull-up resistor to Vcc (H ost Supply Voltage). eceiver Electrical Interface (Over Operating Case Temperature, V CC =. to.7v) Output Voltage Sw ing (D+ & D-) V PP-DIF V Output H IG H Voltage (LOS) V OH.0 - V CC + 0. V Output LOW Voltage (LOS) V OL 0-0. V Di erential peak-to-peak voltage across external 00Ω load. Open collector compatible,.7 to 0kΩ pull-up resistor to Vcc (H ost Supply Voltage). Electrical Pow er Supply C haracteristics (Over Operating Case Temperature, V CC =. to.7v) Supply Voltage V CC...7 V Supply Current I CC ma Module D efinition MO D _D EF(0) pin MO D _D EF() pin MO D _D EF() pin Interpretation by H ost TTL LOW SCL SDA Serial module definition protocol Electrical Pad Layout H ost B oard C onnector Pad Layout TD- (TX DATA IN-) TD+ (TX DATA IN+) VccTX VccX X G ND D+ (X DATA OU T+) D- (X DATA OU T-) X G ND Top of Board TX Fault TX Disable MOD_DEF() MOD_DEF() MOD_DEF(0) NO CONNECTION LOS X G ND X G ND Bottom of Board (as viewed thru top of board) Tow ard Bezel Tow ard ASIC ,ev.A 00--

4 T PE-E Single Mode Multi-rate Example of SFP host board schematic Vcc.V :.7 to 0kΩ CA P Values in µf TX Disable mh coilorferrite bead (<0. W series resistance) TX DATA IN+ TX DATA IN TPE-E,9,0,,,7,0 Vcc.V TX Fault LOS MOD_DEF() MOD_DEF() MOD_DEF(0) X DATA OUT+ to 0 W load X DATA OUTto 0 W load A pplication N otes Electrical Interface: A ll signal interfaces are compliant w ith the SFP MSA specification. The high speed DATA interface is differential AC-coupled internally w ith μf and can be directly connected to a.v SEDES IC. All low speed control and sense output signals are open collector TTL compatible and should be pulled up w ith a.7-0kω resistor on the host board. Loss of Signal (LOS): The Loss of Signal circuit monitors the level of the incoming optical signal and generates a logic H IG H w hen an insufficient photocurrent is produced. TX Fault: The output indicates LOW w hen the transmitter is operating normally,and H IG H w ith a laser fault including laser end-of-life. TX Fault is an open collector/drain output and should be pulled up w ith a.7-0kω resistor on the host board. TX Fault is non-latching (automatically deasserts w hen fault goes aw ay). TX Disable: W hen the TX Disable pin is at logic H IG H,the transmitter optical output is disabled (less than -dbm). Serial Identification and Monitoring: The module definition of SFP is indicated by the three module definition pins, MOD_DEF(0),MOD_DEF()and MOD_DEF(). U pon pow er up, MOD_DEF(:)appear as NC (no connection),and MOD_DEF(0) is TTL LOW. W hen the host system detects this condition, it activates the serial protocol (standard tw o-w ire I C serial interface) and generates the serial clock signal (SCL). The positive edge clocks data into the EEPOM segments of the SFP that are not w rite protected and the negative edge clocks data from the SFP. The serial data signal (SDA ) is for serial data transfer. The host uses SDA in conjunction w ith SCL to mark the start and end of serial protocol activation. The supported monitoring functions are temperature,voltage,bias current,transmitter pow er,average receiver signal,all alarms and w arnings,and softw are monitoring of TX Fault/LOS. The device is internally calibrated. The data transfer protocol and the details of the mandatory and vendor specific data structures are defined in the SFP MSA and SFF-7,ev. 9.. Power Supply and Grounding: The pow er supply line should be w ell-filtered. A ll 0.μF pow er supply bypass capacitors should be as close to the transceiver module as possible ,ev.A 00--

5 [.].9 [.70]. [.] 9.0 [.].9 [.]. [.] T PE-E Single Mode Multi-rate Package O utline.0 [.].00 [.77]. [.].99 [.07] [.7]. 0.0 [.0].0 [.] O rdering Information Part N umber.9 [.090].9 [.09] O perating Temperature Latch C olor N ominal W avelength SO N ET/SD H Standards D istance TPEA SC000E - C to +70 C G ray 0nm S-/I- /km TPEA IC000E - C to +70 C Yellow 0nm I-/S-. /km TPEG LC000E - C to +70 C ed 0nm L-/L-. /0km TPEG LC000E - C to +70 C W hite 0nm L-/L-. /0km TPEA SI000E - 0 C to + C G ray 0nm S-/I- /km TPEA II000E - 0 C to + C Yellow 0nm I-/S-. /km TPEG LI000E - 0 C to + C ed 0nm L-/L-. /0km TPEG LI000E - 0 C to + C W hite 0nm L-/L-. /0km These are target distances to be used for classi cation and not for speci cation,per Telcordia G --COE/ITU -T ecommendation G [.09] reserves the right to make changes in equipment design or speci cations w ithout notice. Information supplied by is believed to be accurate and reliable. H ow ever,no responsibility is assumed by for its use nor for any infringements of third parties,w hich may result from its use. No license is granted by implication or otherw ise under any patent right of 00, ,ev.A [.0] 0. [.0] Dimensions in inches [mm] Default tolerances:.xxx = ±.00,.xx = ±.0