SY88236LMG TR Micrel Inc, SY88236LMG TR Datasheet

IC LASER DVR BURST 2.5GBPS 32MLF

SY88236LMG TR

Manufacturer Part Number
SY88236LMG TR
Description
IC LASER DVR BURST 2.5GBPS 32MLF
Manufacturer
Micrel Inc
Type
Laser Diode Driver, Burst Moder
Datasheet

Specifications of SY88236LMG TR

Data Rate
2.5Gbps
Number Of Channels
2
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
90mA
Current - Modulation
85mA
Current - Bias
70mA
Operating Temperature
-40°C ~ 85°C
Package / Case
32-MLF®, QFN
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
576-3730-2
The SY88236L is a single supply 3.3V integrated burst
mode laser driver and post amplifier for A-PON, B-PON,
EPON, GE-PON, and G-PON applications with data rates
from 155Mbps up to 2.5Gbps. The driver can deliver
modulation current up to 85mA, and provides a high
compliance voltage that makes it suitable for high-current
operation with the laser DC-coupled to it. The post
amplifier can detect signals with amplitude as low as
5mV
The SY88236AL is a version of the SY88236L without 50Ω
termination resistors at the inputs of the driver and the post
amplifier. The SY88236AL is to be used specially in SFF
modules mounted on ONU mother boards which have
preinstalled terminations. Removing post amplifier input
terminations will allow for receiver gain control.
All support documentation can be found on Micrel’s web
site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
General Description
June 2009
PP
.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
Features
• 2.4V minimum laser compliance voltage
• Operation up to 2.5Gbps
• Fast burst mode enable/disable delay
• Modulation current up to 85mA
• Bias current up to 70mA
• Infinite bias current hold time between bursts
• Bias, Modulation, and power monitoring
• High input sensitivity post amplifier, 5mV
• Programmable LOS level
• Available in 32-pin (5mm x 5mm) QFN package
Applications
• Multi-rate burst mode applications: A-PON, B-PON,
408
G-PON, E-PON, GE-PON
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
2.5Gbps Burst Mode Laser Driver with
Integrated Limiting Amplifier
SY88236L/AL
hbwhelp@micrel.com
or (408) 955-1690
M9999-063009-A
PP

Related parts for SY88236LMG TR

SY88236LMG TR Summary of contents

Page 1

... All support documentation can be found on Micrel’s web site at: www.micrel.com. ___________________________________________________________________________________________________________ Typical Application Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 ( June 2009 SY88236L/AL 2.5Gbps Burst Mode Laser Driver with Integrated Limiting Amplifier Features • ...

Page 2

Micrel, Inc. (1) Ordering Information Part Number Voltage SY88236LMG 3.3V (2) SY88236LMGTR 3.3V SY88236ALMG 3.3V (2) SY88236ALMGTR 3.3V Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. June 2009 Temperature Package Type Range ...

Page 3

Micrel, Inc. Pin Configuration Pin Description Pin Number Pin Name 1 LOS/SD_SEL 2 LOSLVL 3 LOS/SD 4 JAM 6 DIN+ 7 DIN- 9 BEN+ 10 BEN- 11 TXDIS June 2009 32-Pin QFN Pin Function LOS or SD selection, TTL input. ...

Page 4

Micrel, Inc. Pin Description (continued) Pin Number Pin Name 12 APCSET 13 MODSET 14 BIASMAX 15 MODMON 18 MOD- 19 MOD+ 21 BIAS BIASMON 24 RSSI 25 /APCFAULT 27 RIN+ 28 RIN- 30 ROUT- 31 ROUT+ 5, ...

Page 5

Micrel, Inc. Truth Tables DIN+ DIN- TXDIS MOD Table 1. Modulation Output Truth Table TXDIS BEN Table 2. BIAS Output Truth Table Notes: ...

Page 6

Micrel, Inc. Absolute Maximum Ratings Supply Voltage (V ) ..................................... –0.5V to +4.0V IN CML Input Voltage (V ) ................... V IN TTL Control Input Voltage (V ) ............................. Lead Temperature (soldering, 20sec.) ..................... +260°C Storage ...

Page 7

Micrel, Inc. Post Amplifier Symbol Parameter LOS LOS Voltage LVL LVL V ROUT+, ROUT- HIGH Voltage OH V ROUT+, ROUT- LOW Voltage OL V Differential Output Offset OFFSET Z (ROUT) Single-Ended Output 0 Impedance Z (RIN) Single-Ended Input Impedance I ...

Page 8

Micrel, Inc. AC Electrical Characteristics T = –40°C to +85°C and V = +3.0V to +3.6V, unless otherwise noted. Typical values are 30mA 30mA. BIAS Symbol Parameter Laser Driver Data Rate V (DIN) Differential Input ...

Page 9

Micrel, Inc. Post Amplifier Symbol Parameter Output Rise/Fall Time r f (20% to 80%) t Deterministic JITTER Random V Differential Input Voltage Swing Diff_IN (RIN) V Differential Output Voltage Diff_OUT (ROUT) Swing G RSSI Gain = I ...

Page 10

Micrel, Inc. Typical Characteristics Laser Driver I vs. I BIAS BIASMAXSET 100 100 150 200 250 300 350 400 450 500 I (µA) BIASMAXSET Modulation Gain 100 90 ...

Page 11

Micrel, Inc. Functional Characteristics Laser Driver June 2009 11 hbwhelp@micrel.com SY88236L/AL M9999-063009-A or (408) 955-1690 ...

Page 12

Micrel, Inc. June 2009 12 hbwhelp@micrel.com SY88236L/AL M9999-063009-A or (408) 955-1690 ...

Page 13

Micrel, Inc. Functional Characteristics (continued) Post Amplifier June 2009 13 hbwhelp@micrel.com SY88236L/AL M9999-063009-A or (408) 955-1690 ...

Page 14

Micrel, Inc. Functional Diagram The SY88236L is shown. For the SY88236AL, 50Ω terminations should be removed from DIN± and RIN±. June 2009 14 hbwhelp@micrel.com SY88236L/AL M9999-063009-A or (408) 955-1690 ...

Page 15

Micrel, Inc. Functional Description Laser Driver The laser driver is comprised from a modulator, a bias circuit, and a digital APC loop. The driver features bias and modulation current monitoring functions, which can be configured for optical power monitoring. BIAS ...

Page 16

Micrel, Inc. Loss-of-Signal-Level Set A programmable LOS/SD level set pin (LOS threshold of the input amplitude detection. Connecting an external resistor between V CC voltage at LOS . This voltage ranges from V LVL V -1.3V. The external resistor creates ...

Page 17

Micrel, Inc. Input and Output Stages (SY88236L) Figure 1a. Simplified Driver Input Stage Figure 1c. Simplified Driver Output Stage Figure 1e. Post Amplifier Output Stage Note: 1. Applies for SY88236L only. For SY88236AL input terminations need to be removed. June ...

Page 18

Micrel, Inc. Interfacing DIN and BEN Inputs to Different Logic Drivers (SY88236L) Figure 2a. Driving DIN and BEN with PECL Outputs Figure 2c. Driving BEN with LVTTL/CMOS Outputs Figure 2e. Driving BEN with Single-Ended LVTTL/CMOS Figure 2g. LOS Output Structure ...

Page 19

Micrel, Inc. Package Information MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. ...

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