MAX3747BEUB+TCBK

MAX3747BEUB+TCBK Datasheet

MAX3747A/MAX3747B

Part	Datasheet
MAX3747BEUB+TCBK	MAX3747BEUB+TCBK (pdf)

Related Parts	Information
MAX3747BEUB+CBK	MAX3747BEUB+CBK

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EVALUATION KIT AVAILABLE MAX3747A/MAX3747B 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers The MAX3747A/MAX3747B multirate limiting amplifiers function as data quantizers for OC-3 through OC-48 synchronous optical network SONET , Fibre-Channel, and Gigabit Ethernet optical receivers. They are pin-for-pin compatible with the SY88993V from Micrel Semiconductor, Inc. The amplifiers accept a wide range of input voltages and provide constant-level, currentmode logic CML output voltages with controlled edge speeds. The MAX3747A/MAX3747B output voltages are 800mVP-P. The MAX3747B has enhanced LOS operation under overload conditions. The MAX3747A/MAX3747B limiting amplifiers feature a programmable loss-of-signal detect LOS and an optional disable function DISABLE that can be combined to implement squelch. The MAX3747A/MAX3747B are available in a 3mm, 10pin package ideal for small formfactor receivers. Gigabit Ethernet SFP/SFF Optical Transceiver Modules 1G/2G Fibre-Channel SFP/SFF Optical Transceiver Modules Multirate OC-3 to OC-48 FEC SFP/SFF Optical Transceiver Modules 10G LX4 Transceiver Modules o Pin Compatible with Micrel SY88993V o 155Mbps to 3.2Gbps Operation o > 57dB of Gain o < 10-12 BER with 2mVP-P Input Amplitude o 18mA Supply Current o Chatter-Free LOS with Programmable Threshold o Output DISABLE Function o PECL-Compatible Inputs Ordering Information PART TEMP RANGE PIN-PACKAGE MAX3747AEUB+ -40°C to +85°C 10 µMAX MAX3747BEUB+ -40°C to +85°C 10 µMAX +Denotes a lead Pb -free/RoHS-compliant package. µMAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configuration appears at end of data sheet. Typical Application Circuit 3-INPUT DIAGNOSTIC MONITOR DS1859 VCC MAX4004 MAX3745 5-PIN TO-HEADER SFP OPTICAL RECEIVER SUPPLY FILTER 0.1µF 0.1µF VCC MAX3747A MAX3747B IN+ 0.1µF OUT+ 0.1µF OUT- VREF TH GND LOS DISABLE RTH1 0.1µF RTH2 0.1µF HOST BOARD HOST FILTER VCC_RX SERDES TO VCC_HOST LOS VCC RTH1 + RTH2 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at MAX3747A/MAX3747B 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers ABSOLUTE MAXIMUM RATINGS Power-Supply Voltage VCC .................................-0.5V to +4.5V Voltage at IN+, IN- .......................... VCC - 2.4V to VCC + 0.5V Voltage at DISABLE, LOS, TH, VREF ..........-0.5V to VCC + 0.5V Current into LOS to +9mA Current into VREF Differential Input Voltage IN+ - IN- Continuous Current at CML Outputs OUT+, OUT- to +25mA Continuous Power Dissipation TA = +70°C 10-Pin µMAX derate 6.9mW/°C above +70°C ...........552mW Operating Junction Temperature Range TJ .......-55°C to +150°C Storage Ambient Temperature Range TS ...........-55°C to +150°C Lead Temperature soldering, Soldering Temperature Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VCC = +2.97V to +3.63V, CML output load is to VCC, TA = -40°C to +85°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise specified. Note 1 PARAMETER CONDITIONS MIN TYP MAX UNITS POWER SUPPLY MAX3747A including the CML output current MAX3747B including the CML output current Supply Current Note 2 MAX3747A excluding the CML output current Power-Supply Noise Rejection INPUT SPECIFICATION Input Sensitivity Input Overload OUTPUT SPECIFICATION Output Resistance Differential Output Return Loss PSNR MAX3747B excluding the CML output current f < 2MHz VIN-MIN VIN-MAX Note 3 Note 3 ROUT Note 4 DUT is powered on, f < 3GHz 20 30 1200 26 dB mVP-P mVP-P CML Differential Output Voltage MAX3747A/MAX3747B 4mVP-P VIN 1200mVP-P 800 1000 mVP-P Differential Output Signal When Disabled Data-Output Transition Time TRANSFER CHARACTERISTIC Deterministic Jitter Notes 4, 5 Random Jitter AC-coupled outputs, VIN-MAX applied to the input Note 4 20% to 80% Note 4 K28.5 pattern at 3.2Gbps PRBS 223 - 1 equivalent pattern at 2.7Gbps Note 6 DJ K28.5 pattern at 2.1Gbps PRBS 223 - 1 equivalent pattern at 155Mbps Note 6 VIN = 4mVP-P Notes 4, 7

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EVALUATION KIT AVAILABLE

MAX3747A/MAX3747B
155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers

The MAX3747A/MAX3747B multirate limiting amplifiers function as data quantizers for OC-3 through OC-48 synchronous optical network SONET , Fibre-Channel, and Gigabit Ethernet optical receivers. They are pin-for-pin compatible with the SY88993V from Micrel Semiconductor, Inc. The amplifiers accept a wide range of input voltages and provide constant-level, currentmode logic CML output voltages with controlled edge speeds. The MAX3747A/MAX3747B output voltages are 800mVP-P. The MAX3747B has enhanced LOS operation under overload conditions.

The MAX3747A/MAX3747B limiting amplifiers feature a programmable loss-of-signal detect LOS and an optional disable function DISABLE that can be combined to implement squelch.

The MAX3747A/MAX3747B are available in a 3mm, 10pin package ideal for small formfactor receivers.

Gigabit Ethernet SFP/SFF Optical Transceiver Modules 1G/2G Fibre-Channel SFP/SFF Optical Transceiver

Modules Multirate OC-3 to OC-48 FEC SFP/SFF Optical

Transceiver Modules 10G LX4 Transceiver Modules
o Pin Compatible with Micrel SY88993V o 155Mbps to 3.2Gbps Operation o > 57dB of Gain o < 10-12 BER with 2mVP-P Input Amplitude o 18mA Supply Current o Chatter-Free LOS with Programmable Threshold o Output DISABLE Function o PECL-Compatible Inputs
Ordering Information

PART

TEMP RANGE PIN-PACKAGE

MAX3747AEUB+
-40°C to +85°C 10 µMAX

MAX3747BEUB+
-40°C to +85°C 10 µMAX
+Denotes a lead Pb -free/RoHS-compliant package.
µMAX is a registered trademark of Maxim Integrated Products, Inc.

Pin Configuration appears at end of data sheet.

Typical Application Circuit
3-INPUT DIAGNOSTIC

MONITOR

DS1859

VCC MAX4004

MAX3745 5-PIN TO-HEADER

SFP OPTICAL RECEIVER

SUPPLY FILTER
0.1µF 0.1µF

VCC MAX3747A MAX3747B IN+
0.1µF OUT+
0.1µF OUT-

VREF TH

GND LOS DISABLE

RTH1 0.1µF

RTH2
0.1µF

HOST BOARD HOST FILTER

VCC_RX

SERDES

TO VCC_HOST LOS

VCC RTH1 + RTH2
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at

MAX3747A/MAX3747B
155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers

ABSOLUTE MAXIMUM RATINGS

Power-Supply Voltage VCC .................................-0.5V to +4.5V Voltage at IN+, IN- .......................... VCC - 2.4V to VCC + 0.5V Voltage at DISABLE, LOS, TH, VREF ..........-0.5V to VCC + 0.5V Current into LOS to +9mA Current into VREF Differential Input Voltage IN+ - IN- Continuous Current at CML Outputs

OUT+, OUT- to +25mA

Continuous Power Dissipation TA = +70°C 10-Pin µMAX derate 6.9mW/°C above +70°C ...........552mW

Operating Junction Temperature Range TJ .......-55°C to +150°C Storage Ambient Temperature Range TS ...........-55°C to +150°C Lead Temperature soldering,

Soldering Temperature

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VCC = +2.97V to +3.63V, CML output load is to VCC, TA = -40°C to +85°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise specified. Note 1

PARAMETER

CONDITIONS

MIN TYP MAX UNITS

POWER SUPPLY

MAX3747A including the CML output current

MAX3747B including the CML output current

Supply Current Note 2

MAX3747A excluding the CML output current

Power-Supply Noise Rejection INPUT SPECIFICATION Input Sensitivity Input Overload OUTPUT SPECIFICATION Output Resistance Differential Output Return Loss

PSNR

MAX3747B excluding the CML output current
f < 2MHz

VIN-MIN VIN-MAX

Note 3 Note 3

ROUT

Note 4 DUT is powered on, f < 3GHz
20 30
1200
26 dB
mVP-P
mVP-P

CML Differential Output Voltage

MAX3747A/MAX3747B 4mVP-P VIN 1200mVP-P
800 1000 mVP-P

Differential Output Signal When Disabled Data-Output Transition Time TRANSFER CHARACTERISTIC

Deterministic Jitter Notes 4, 5

Random Jitter

AC-coupled outputs, VIN-MAX applied to the input Note 4 20% to 80% Note 4

K28.5 pattern at 3.2Gbps PRBS 223 - 1 equivalent pattern at 2.7Gbps Note 6 DJ K28.5 pattern at 2.1Gbps PRBS 223 - 1 equivalent pattern at 155Mbps Note 6 VIN = 4mVP-P Notes 4, 7

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Datasheet ID: MAX3747BEUB+TCBK 647322