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MAX3274
Dual-Rate Fibre Channel Limiting Amplifier
1.0625Gbps/2.215Gbps Fibre Channel Limiting Amplifier with On-Chip, Fourth-Order Filter
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Status
Active: In Production.
Description
The MAX3274 dual-rate Fibre Channel limiting amplifier is optimized for use in dual-rate 2.125Gbps/1.0625Gbps Fibre Channel optical receiver systems. An on-chip selectable fourth-order Bessel Thompson filter offers 15dB (typ) of attenuation at 2GHz to suppress the relaxation oscillation (RO) found in legacy transmitters. The amplifier accepts a wide range of input voltages and provides constant-level output voltages with controlled edge speeds. Receivers using the MAX3275/MAX3277 transimpedance amplifiers (TIA) and the MAX3274 dual-rate limiting amplifier can meet the Fibre Channel receiver sensitivity optical modulation amplitude (OMA) specification of 49mWP-P at 2.125Gbps and 31mWP-P at 1.0625Gbps. Additional features include a programmable threshold loss-of-signal (LOS) detector, output squelch, and bandwidth select. The MAX3274 features current-mode logic (CML) data outputs. The MAX3274 is available in a 16-pin QFN package, making it ideal for GBIC and small form-factor receiver modules.
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Data Sheet
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An evaluation kit is available: MAX3274EVKIT
Key Features
- Dual-Rate 1.0625Gbps/2.125Gbps Operation
- On-Chip Selectable 4th-Order Filter
- Relaxation Oscillation Suppression of Legacy,
CD Laser-Based Transmitters
- Available in a 100Ω Output Termination
- Programmable Loss-of-Signal (LOS) Threshold
- Output Squelch Control
- Power-On Reset Minimizes Inrush Current
- 4mm x 4mm 16-Pin QFN Package
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Applications/Uses
- Dual-Rate Fibre Channel SFF/SFP Optical Modules
- Fibre Channel GBIC Optical 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 |
| min |
max |
typ |
min |
max |
| MAX3274 |
1 to 4.5 |
1062 |
2125 |
3.3 |
78 |
CML |
10 |
8 |
220 |
Yes |
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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
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Software/Models
Ordering Information
This product cannot be purchased through our web site. Contact factory for availability.
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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More Information
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Information Index
Document Ref.: 19-2375
Rev 1;
2003-08-29
This page last modified: 2009-10-14
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