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MAX3747 Dataheets PDF



Part Number MAX3747
Manufacturers Maxim
Logo Maxim
Description Low-Power SFP Limiting Amplifiers
Datasheet MAX3747 DatasheetMAX3747 Datasheet (PDF)

19-3297; Rev 0; 5/04 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers General Description The MAX3747/MAX3747A 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 co.

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19-3297; Rev 0; 5/04 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers General Description The MAX3747/MAX3747A 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 MAX3747 output voltage level is 500mVp-p and the MAX3747A output voltage is 800mVp-p. The MAX3747/MAX3747A limiting amplifiers feature a programmable loss-of-signal detect (LOS) and an optional disable function (DISABLE). Output disable can be used to implement squelch. The MAX3747/MAX3747A are available in a 3mm, 10-pin µMAX® package ideal for small form-factor receivers. ♦ 155Mbps to 3.2Gbps Operation ♦ >57dB of Gain for the MAX3747 and MAX3747A ♦ <10-12 BER with 2mVP-P Input Amplitude ♦ 18mA Supply Current ♦ Chatter-Free LOS with Programmable Threshold ♦ Output DISABLE Function ♦ PECL-Compatible Inputs Features ♦ Pin Compatible with Micrel SY88993V MAX3747/MAX3747A Ordering Information PART TEMP RANGE -40°C to +85°C -40°C to +85°C PINPACKAGE 10 µMAX 10 µMAX PKG CODE U10C-4 U10C-4 Applications 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 SFP OPTICAL RECEIVER 3-INPUT DIAGNOSTIC MONITOR DS1859 MAX3747EUB MAX3747AEUB µMAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configuration appears at end of data sheet. Typical Application Circuit HOST BOARD SUPPLY FILTER VCC HOST FILTER VCC_RX MAX4004 VCC 0.1µF IN+ MAX3747 MAX3747A OUT+ 0.1µF 50Ω 0.1µF 50Ω SERDES MAX3745 0.1µF IN- OUT- 5-PIN TO-HEADER 50Ω 50Ω VREF TH GND LOS DISABLE 4.7kΩ TO 10kΩ VCC_HOST R1 0.1µF R2 0.1µF LOS VCC R1 + R2 ≥ 5kΩ ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 155Mbps to 3.2Gbps, Low-Power SFP Limiting Amplifiers MAX3747/MAX3747A 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 ...................................................-1mA to +9mA Current into VREF ..................................................................2mA Differential Input Voltage (IN+ - IN-) .....................................2.5V Continuous Current at CML Outputs (OUT+, OUT-) ..............................................-25mA to +25mA Continuous Power Dissipation (TA = +70°C) 10-Pin µMAX (derat.


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