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MAX3748
Compact 155Mbps to 4.25Gbps Limiting Amplifier
Compact, 155Mbps to 4.25Gbps Multirate SFF/SFP Limiting Amplifier Functions as a Data Quantizer for SONET, Fibre Channel, and Gigabit Ethernet Optical Receivers
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Status
Active: In Production.
Description
The MAX3748 multirate limiting amplifier functions as a data quantizer for SONET, Fibre Channel, and Gigabit Ethernet optical receivers. The amplifier accepts a wide range of input voltages and provides constant-level current-mode logic (CML) output voltages with controlled edge speeds.
A received-signal-strength indicator (RSSI) is available when the MAX3748 is combined with the MAX3744 SFP transimpedance amplifier (TIA). A receiver consisting of the MAX3744 and the MAX3748 can provide up to 19dB RSSI dynamic range. Additional features include a programmable loss-of-signal (LOS) detect, an optional disable function (DISABLE), and an output signal polarity reversal (OUTPOL). Output disable can be used to implement squelch.
The combination of the MAX3748 and the MAX3744 allows for the implementation of all the small-form-factor SFF-8472 digital diagnostic specifications using a standard 4-pin TO-46 header. The MAX3748 is packaged in a 3mm x 3mm, 16-pin thin QFN package with an exposed pad.
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Data Sheet
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An evaluation kit is available: MAX3748EVKIT
Key Features
- SFP Reference Design Available
- 16-Pin TQFN Package with 3mm x 3mm Footprint
- Single 3.3V Supply Voltage
- 86ps Rise and Fall Time
- Loss of Signal with Programmable Threshold
- RSSI Interface (with MAX3744 TIA)
- Output Disable
- Polarity Select
- 8.7psP-P Deterministic Jitter (4.25Gbps)
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Applications/Uses
- Fibre Channel SFF/SFP Transceiver Modules
- Gigabit Ethernet SFF/SFP Transceiver Modules
- Multirate OC-3 to OC-48-FEC SFF/SFP
- Transceiver Modules
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Key Specifications:
| Limiting Amplifiers |
| Part Number |
Target Oper. Range
(Gbps) |
Data Rate
(Mbps) |
Data Rate
(Mbps) |
VSUPPLY
(V) |
ICC
(mA) |
I/O Type |
Input Sens.
(mV) |
LOS Sens.
(mV) |
Edge Speed
(ps) |
EV Kit |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| min |
max |
typ |
min |
max |
max w/pins |
See Notes |
| MAX3748 |
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155 |
4250 |
3.3 |
32 |
CML |
5 |
4.1 |
115 |
Yes |
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9.6 |
$1.24 @1k |
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See All Limiting Amplifiers (16)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Typical Operating Circuit
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX3748HETE#G16
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Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0033 (PDF)
Use pkgcode/variation: T1633FH-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX3748HETE#TG16
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Active |
TQFN;16 pin;9.6 mm²
Outline Drawing:21-0136 (PDF)
Land Pattern: 90-0033 (PDF)
Use pkgcode/variation: T1633FH-3*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-2717
Rev 6;
2011-08-02
This page last modified: 2011-08-03
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