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MAX3981
3.125Gbps XAUI Quad Cable Equalizer
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Status
All versions are No Longer Available. See Ordering Information for recommended replacements.
Description
The MAX3981 quad equalizer provides compensation for transmission medium losses for four "lanes" of digital NRZ data at a data rate of 3.125Gbps in one
package. It is tailor-made for 10Gigabit Ethernet applications that require attenuation of noise and jitter that occur in communicating with chassis-to-chassis interconnect. In support of IEEE-802.3ae for the XAUI interface, the MAX3981 adaptively allows XAUI lanes to reach 10m (33ft) with inexpensive twin-axial cable for extended backplane applications.
The equalizer has 100Ω differential CML data inputs and outputs.
The MAX3981 is available in a 44-pin exposed-pad QFN package. The MAX3981 consumes only 700mW at 3.3V or 175mW per channel.
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Data Sheet
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An evaluation kit is available: MAX3980EVKIT, MAX3981EVKIT
Key Features
- Four Differential Digital Data "Lanes" at 3.125Gbps
- Span 10m (33ft) of Twin-Axial Cable
- Receiver Equalization Reduces Intersymbol Interference (ISI)
- Low Power, 175mW per Channel
- Standby Mode—Power-Down State
- Single 3.3V Supply
- Signal Detect
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Applications/Uses
- IEEE-802.3ae XAUI Interface (3.125Gbps)
- InfiniBand® (2.5Gbps)
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Diagram
 Typical Operating Circuit
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Recommended Replacement |
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX3981UGH-D
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N/A |
No Longer Available |
MAX3980UTH+
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QFN;44 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX3981UGH-TD
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N/A |
No Longer Available |
MAX3980UTH+
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QFN;44 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX3981UTH+
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N/A |
No Longer Available |
MAX3980UTH+
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TQFN;44 pin;50.4 mm²
Outline Drawing:21-0144 (PDF)
Land Pattern: 90-0127 (PDF)
Use pkgcode/variation: T4477+2*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3981UTH+T
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N/A |
No Longer Available |
MAX3980UTH+
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QFN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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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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Similar Products by Function
| MAX3800 |
3.2Gbps Adaptive Equalizer and Cable Driver |
| MAX3801 |
3.2Gbps Adaptive Equalizer |
Evaluation Kits
Products with Similar Part Numbers
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 21-2178
Rev 2;
2008-12-15
This page last modified: 2008-12-15
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