SY88232LMG Micrel Inc, SY88232LMG Datasheet

IC LASER DIODE DVR 2.5G 32-MLF

SY88232LMG

Manufacturer Part Number
SY88232LMG
Description
IC LASER DIODE DVR 2.5G 32-MLF
Manufacturer
Micrel Inc
Type
Laser Diode Driver (Fiber Optic)r
Datasheet

Specifications of SY88232LMG

Data Rate
2.5Gbps
Number Of Channels
1
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
576-3540

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SY88232LMG
Manufacturer:
Micrel Inc
Quantity:
135
General Description
The SY88232L is a single supply 3.3V integrated laser
driver and post amplifier for telecom/datacom 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 SY88232AL is a version of the SY88232L without 50Ω
termination resistors at the inputs of the driver and the post
amplifier. The SY88232AL is to be used specially in SFF
modules
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
June 2009
PP
.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (
mounted
on
mother
boards
which
have
Features
• 2.4V minimum laser compliance voltage
• Operation up to 2.5Gbps
• Integrated APC circuit
• Modulation current up to 85mA
• Bias current up to 70mA
• 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
2.5Gbps Laser Diode Driver with Integrated
G-PON, E-PON, GE-PON
) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
Limiting Amplifier
SY88232L/AL
hbwhelp@micrel.com
or (408) 955-1690
M9999-063009-A
PP

Related parts for SY88232LMG

SY88232LMG 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 2.5Gbps Laser Diode Driver with Integrated Features • 2.4V minimum laser compliance voltage • ...

Page 2

... Micrel, Inc. (1) Ordering Information Part Number Voltage SY88232LMG 3.3V (2) SY88232LMGTR 3.3V SY88232ALMG 3.3V (2) SY88232ALMGTR 3.3V Notes: 1. Contact factory for die availability. Dice are guaranteed Tape and Reel. June 2009 Temperature Package Type Range –40° to +85°C QFN-32 –40° to +85°C QFN-32 – ...

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 /TXDIS 10 TXDIS 11 /TXEN 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- /TXEN MOD Table 1. Modulation Output Truth Table /TXEN Table 2. BIAS Output Truth Table Notes: 1. Assuming /TXDIS = ...

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 Maximum voltage at RSSI pin RSSI V Differential Output Offset OFFSET Z (ROUT) Single-Ended Output 0 ...

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 Differential Input Voltage ...

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 SY88232L/AL M9999-063009-A or (408) 955-1690 ...

Page 12

Micrel, Inc. Functional Characteristics (continued) Post Amplifier June 2009 12 hbwhelp@micrel.com SY88232L/AL M9999-063009-A or (408) 955-1690 ...

Page 13

Micrel, Inc. Functional Diagram The SY88232L is shown. For the SY88232AL, 50Ω terminations should be removed from DIN± and RIN±. June 2009 13 hbwhelp@micrel.com SY88232L/AL M9999-063009-A or (408) 955-1690 ...

Page 14

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 15

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 16

Micrel, Inc. Input and Output Stages (SY88232L) Figure 1a. Simplified Driver Input Stage Figure 1c. Simplified Driver Output Stage Figure 1e. Post Amplifier Output Stage Note: 1. Applies for SY88232L only. For SY88232AL input terminations need to be removed. June ...

Page 17

Micrel, Inc. Interfacing DIN to Different Logic Drivers (SY88232L) Figure 2a. Driving DIN with PECL Outputs Figure 2c. LOSLVL Setting Circuit Note: 1. Applies for SY88232L only. For SY88232AL input terminations need to be added. June 2009 (1) (1) Figure ...

Page 18

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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