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Technical content
Features
Operating @ 3.3V or 5V (+/-5% each) Power supply Operating temperature range -40°C to +95°C TTL Data Input/ Output (Logic to Light Function) Power down mode During the low power mode a receiver STATUS-pin indicates if modulated light is received (Light on -> STATUS = low). The power supply of the whole MOST device can be switched on with this Status-pin. Duty Cycle Adjust (DCA), yields to enhanced SP1 input range 650nm for working in a low attenuation range of PMMA Fiber -25dBm guaranteed sensitivity @ 650nm Fully compliant to “MOST® Specifi cation of Physical Layer Rev 1.1” RoHS compliant (Lead free and halogen free) Lead is fl ash gold Low power consumption Photo current sensing, network activity detection and Low Power Mode (I CC < 10μA) Additional Low Power Mode (I CC < 15μA) for the transmitter when SP1 input is low Signal detect and Status Output Pulse width control
Description
AFBR-1012 Transmitter and AFBR-2012 Receiver are de- signed to transmit/ receive up to 25MBit/s optical data which are biphase coded (up to 50Mbaud). Both are packaged in 4-pin transfer molded, low-cost packages ready for assembly into MOST® plastic fi ber optic connec- tor receptacles. The transmitter utilizes a 650 nm LED source with inte- grated optics for effi cient coupling into 1mm Polymer Op- tical Fiber (POF), and the receiver contains a high speed PIN diode to receive this light. Input/output data has TTL switching levels, compatible with MOST® Network Interface Controller ICs. These optical components are specifi ed for operation over a -40°C to +95°C temperature range, and meet the reliability requirements of automotive applications. In the absence of data activity, the receiver switches to very low power mode. While in this mode, the PIN diode can sense new data activity and switch the receiver back to full op- eration.
Applications
Optical Transmitter and Receiver for MOST® 50 Mbaud systems (a full description of the MOST® 50 Mbaud system is available at www.mostcooperation.com)
Parameter Symbol Min. Max. Units Supply Voltage [1] VCCMax -0.5 6.0 V Storage Temperature T STG -40 110 °C Soldering Temperature (distance to package >3mm; t≤10s) [2] TS 260 °C Voltage at any PIN -0.5 VCC+0.5 V Electrostatic Voltage Capability [3] ESD 2.0 kV Notes: 1. Maximum supply voltage without causing damage 2. For more information regarding the solder process see A pplication Note 5420 (Handling, Storage, Operating and Processing) 3. ESD Capability for all Pins HBM (human body model) according JESD22-A114B Recommended operating conditions Parameter Symbol Min. Max. Units Supply Voltage low V CC_l 3.135 3.465 V Supply Voltage high V CC_hl 4.75 5.25 V Operating temperature (ambient) [1] TA -40 95 °C Notes: 1. For more information see Application Note 5420 (Handling, Storage, Operating and Processing) All the data in this specifi cation refers to the operating conditions above and over lifetime unless otherwise stated. Part Number Options Part Number Part Description Solder Heat Resistance AFBR-1012S/AFBR-2012S Transmitter/Receiver – Short Leads Lead dip in liquid solder of 260°C for 10 Sec. acc. JEDEC standard JESD22-B106-C (for more information see Application Note 5420)AFBR-1012L/AFBR-2012L Transmitter/Receiver – Long Leads AFBR-1012M/AFBR-2012M Transmitter/Receiver - Medium Leads
AFBR-1012 (Transmitter) DC Characteristics Parameter Symbol Min. Typ. Max. Units Low Level Input voltage V IL -0.3 0.8 V High Level Input Voltage V IH 2.0 VCC+0.3 V Input Leakage Current (VCC = 5.0V; VI = 0V or VI =5.0V) IL +/-20 μA Input Capacitance C I 7p F Input Resistance R I 2k Ω Supply Current Full Power Mode [1] ICC 25 mA Supply Current Low Power Mode [2] ILP2 15 μA Notes: 1. The current through the LED and therefore the optical output power and overall power consumption depends on the settings of REXT. The nominal value for REXT is 15k. With REXT = 30k the optical output power is about -3dB of the nominal value. Important: The external resistor of R EXT must be within the range of 13.5kΩ to 33kΩ. For values out of this range functionality may not be given over the whole temperature range and the device lifetime. 2. If the transmitter is in full power mode it is switched OFF 1ms (max) after Tx DATA is low. If the transmitter is in low pow er mode it is switched ON 6ms (max) after Tx Data transmission starts. Parameter Symbol Min. Typ. Max. Units Power Up Time T PU 0.016 6 ms Data Power Down Time T PD 0.01 1.0 ms Optical Signal Characteristics 45.158Mbaud (44.1kHz) Parameter Symbol Min. Typ. Max. Units Peak wavelength λ Peak 630 650 685 nm Temperature coeffi cient λPEAK TC λ 0.16 nm/K Spectral Bandwidth (FWHM) Delta λ 20 30 nm Average Output Power coupled into plastic fi ber [1] Popt -8.0 -5.2 -2.0 dBm Average Output Power coupled into plastic fi ber (if REXT = 13.5k is used instead of REXT =15k) [1] Popt -7.5 -4.7 -1.5 dBm Optical Output Power “Light off ” [2] POFF -50 dBm Optical Rise Time (20% - 80%) [4] tr 2.5 5.98 ns Optical Fall Time (80% - 20%) [4] tf 3.5 5.98 ns Extinction Ratio [4,6] re 10 15 dB Pulse Width Variation [3,4,5] tPWV 20.0 24.29 ns Average Pulse Width Distortion [3,4] tAPWD -1.4 1.4 ns Data Dependent Link Jitter [3,4] tDDJ 0.2 0.77 ns Uncorrelated Link Jitter [3,4] tUJ 0.05 0.33 ns Positive Overshoot within 0UI … 2/3UI [4,6] -20 40 % Negative Overshoot within -1UI … -1/4UI [4,6] -10 20 % High Level Signal Ripple between 2/3UI and 3/4UI -10 10 % Notes: 1. Average value when transmitting modulated light @signal timing parameters. The output power coupled into plastic fi ber Popt is measured with a large area detector at the end of 30cm POF fi ber with a NA = 0.5 which is ideally coupled to the transmitter 2. Average value when signal on Tx_Data is low 3. The electrical input signal has to fulfi ll the following requirements: t pwv(min) = 20.1ns, t pwv(max) = 24.1ns, t tAPWD(min) = -1.5ns and t tAPWD(max) = 1.5ns, tDDJ(max) = 0.22ns, tUJ(max) = 0.10ns 4. Characterized with Avago Characterization Boards 6. Top and Base level measured at least over 10UIs.
Optical Signal Characteristics 49.152Mbaud (48kHz) Parameter Symbol Min. Typ. Max. Units Peak wavelength λ Peak 630 650 685 nm Temperature coeffi cient λPEAK TC λ 0.16 nm/K Spectral Bandwidth (FWHM) Delta λ 20 30 nm Average Output Power coupled into plastic fi ber [1] Popt -8.0 -5.2 -2.0 dBm Average Output Power coupled into plastic fi ber (if REXT = 13.5k is used instead of REXT =15k) [1] Popt -7.5 -4.7 -1.5 dBm Optical Output Power “Light off ” [2] POFF -50 dBm Optical Rise Time (20% - 80%) [4] tr 2.5 5.49 ns Optical Fall Time (80% - 20%) [4] tf 3.5 5.49 ns Extinction Ratio [4,6] re 10 15 dB Pulse Width Variation [3,4,5] tPWV 18.4 22.3 ns Average Pulse Width Distortion [3,4] tAPWD -1.28 1.28 ns Data Dependent Link Jitter [3,4] tDDJ 0.2 0.71 ns Uncorrelated Link Jitter [3,4] tUJ 0.05 0.31 ns Positive Overshoot within 0UI … 2/3UI [4,6] -20 40 % Negative Overshoot within -1UI … -1/4UI [4,6] -10 20 % High Level Signal Ripple between 2/3UI and 3/4UI -10 10 % Notes: 1. Average value when transmitting modulated light @signal timing parameters. The output power coupled into plastic fi ber Popt is measured with a large area detector at the end of 30cm POF fi ber with a NA = 0.5 which is ideally coupled to the transmitter 2. Average value when signal on Tx_Data is low 3. The electrical input signal has to fulfi ll the following requirements: t pwv(min) = 18.4ns, t pwv(max) = 22.3ns, t tAPWD(min) = -1.28ns and t tAPWD(max) = 1.28ns, tDDJ(max) = 0.2ns, tUJ(max) = 0.09ns 4. Characterized with Avago Characterization Boards 6. Top and Base level measured at least over 10UIs.
Package Dimensions Transmitter Transmitter Short Lead Option (AFBR-1012S) Unit: mm For more information see package outline drawing Pin Description Transmitter Pin Name Function/Description
1 Data In = Data Input
2 GND = Ground
CC = Power 3.3V or 5V (+/-5% each)
4 CONT = Connection to LED Current Control Resistor
Transmitter Long Lead Option (AFBR-1012L) Transmitter Medium Lead Option (AFBR-1012M) 5.1 (4x) 18 (4x) 5.1 (4x) 11 (4x) Device Marking Transmitter Lot#=LL Eg. Lot 1 = AA Lot 2 = AB Production Year = YY Eg. 2011 = 11 Product Code = XX G = AFBR-1012S H = AFBR-1012L AC=AFBR-1012M Date Code = WW WW = Working Week = 01 to 52
AFBR-2012 (Receiver) Optical Input Signal Characteristics Parameter Symbol Min. Typ. Max. Units Peak wavelength of input signal λPeak 630 650 685 nm FWHM of input signal Δλ 30 nm Receiveable optical power range for data recovery [1,2] Popt -25 -2 dBm Receiveable optical power for switching to low power mode [1] POFF -40 -25 dBm Notes: 1. Optical power data are average values when using any MOST25 optical transmitter, measured at the end of a plastic optical fi ber with metal insert (diameter 2.90 +/- 0.02mm). The transmitter data is biphase coded. 2. Measured with worst case pattern a BER ≤ 10 -9 can be reached Parameter Symbol Min. Typ. Max. Units Supply Voltage low V CC_l 3.135 3.3 3.465 V Supply Voltage high V CC_hl 4.75 5 5.25 V Low Level Output Voltage Data and Status Pin [1] VOL 0.4 V High Level Output Voltage Data Pin [1] VOH 2.5 3.3 V CC+0.3 V High Level Output Voltage Status Pin [1] VOH 2.5 VCC V Supply Current Full Power Mode I CC, FPM 15 mA Supply Current Low Power Mode I CC, LPM 10 μA Notes: 1. Resistor load must not be smaller than 50k
Parameter Symbol Min. Typ. Max. Units Output Rise Time @VCC_l [1,4,6] tr_l 69 n s Output Rise Time @VCC_h [1,4,6] tr_h 59 n s Output Fall Time @VCC_l [1,4,6] tf_l 69 n s Output Fall Time @VCC_h [1,4,6] tf_h 59 n s Output Pulse Width Variation 1UI [1,2,3,4,5] tPWV 16.5 31 ns Output Average Pulse Width Distortion [1,2,3,4] tAPWD -3.3 7 ns Data Dependent Link Jitter [2,3,4] tDDJ 3.3 ns Uncorrelated Link Jitter [2,3,4] tUJ 1.0 ns Power-up time at detection of rising VCC tPUO 0.1 6 ms Power-up time from low power mode t PU 0.5 6 ms Low Power mode timer delay t LPM 0.005 2 ms Notes: 1. Maximum Capacitive Load is 10pF 2. MOST Data 44.1kHz FS corresponds to a 45MBaud data stream 3. The optical input signal has to fulfi ll following requirements: t PWV(min) = 20.0ns, t PWV(max) = 24.3ns; t APWD(min) = -1.4ns and t APWD(min) = 1.4ns, tDDJ(max) = 0.77ns, tUJ(max) = 0.33ns, Positive Overshoot within 0UI…2/3UI = -20…40%, Extinction Ratio min = 10dB. Variations within those limits do not change tPWV signifi cantly. 4. Characterized with Avago Characterization Boards 6. Output Rise Time from 10% - 90%, Output Fall Time from 90% - 10% Parameter Symbol Min. Typ. Max. Units Output Rise Time @VCC_l [1,4,6] tr_l 69n s Output Rise Time @VCC_h [1,4,6] tr_h 59n s Output Fall Time @VCC_l [1,4,6] tf_l 69n s Output Fall Time @VCC_h [1,4,6] tf_h 59n s Output Pulse Width Variation 1UI [1,2,3,4,5] tPWV 15.12 28.48 ns Output Average Pulse Width Distortion [1,2,3,4] tAPWD -3 6.4 ns Data Dependent Link Jitter [2,3,4] tDDJ 3.0 ns Uncorrelated Link Jitter [2,3,4] tUJ 0.9 ns Power-up time at detection of rising VCC tPUO 0.1 6 ms Power-up time from low power mode t PU 0.5 6 ms Low Power mode timer delay t LPM 0.005 2 ms Notes: 1. Maximum Capacitive Load is 10pF 2. MOST Data 48kHz FS corresponds to a 49.152MBaud data stream 3. The optical input signal has to fulfi ll following requirements: t PWV(min) = 18.37ns, tPWV(max) = 22.32ns; tAPWD(min) = -1.28ns and tAPWD(min) = 1.28ns, tDDJ(max) = 0.71ns, tUJ(max) = 0.3ns, Positive Overshoot within 0UI…2/3UI = -20…40%, Extinction Ratio min = 10dB. Variations within those limits do not change tPWV signifi cantly. 4. Characterized with Avago Characterization Boards 6. Output Rise Time from 10% - 90%, Output Fall Time from 90% - 10%
Receiver Long Lead Option (AFBR-2012L) Device Marking Receiver Unit: mm For more information see package outline drawing Pin Description Receiver Pin Name Function/Description 1V CC = Power 3.3V or 5V (+/-5% each)
3 MODE
OUT = Mode Output 4V OUT = Data Output Package Dimensions Receiver Receiver Short Lead Option (AFBR-2012S) Receiver Medium Lead Option (AFBR-2012M) Lot#=LL Eg. Lot 1 = AA Lot 2 = AB Production Year = YY Eg. 2011 = 11 Product Code = XX S = AFBR-2012S T = AFBR-2012L AD=AFBR-2012M Date Code = WW WW = Working Week = 01 to 52 5.1 (4x) 18 (4x) 5.1 (4x) 11 (4x)
For product information and a complete list of distributors, please go to our web site: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved. AV02-2056EN - March 20, 2012