MAX3804 12.5Gbps Settable Receive Equalizer

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The MAX3804 driver with integrated analog equalizer compensates up to 20dB of loss at 5GHz. It is designed to ensure PC board signal integrity up to 12.5Gbps, where frequency-dependent skin effect and dielectric losses typically produce unacceptable amounts of intersymbol interference. The MAX3804 can extend the practical chip-to-chip transmission distance for 10Gbps NRZ serial data up to 30in (0.75m) on FR-4, and it significantly decreases deterministic jitter. Residual jitter after equalization for 10.7Gbps signals is typically 24ps_P-P on the maximum path length.

The MAX3804 is ideal for 10Gbps chip-to-chip serial interconnections on inexpensive FR-4 material. Its 3mm x 3mm package affords optimal placement and routing flexibility. It has separate V_CC connections for internal logic and current-mode logic (CML) I/O. This allows the CML input and output to be referenced to isolated supplies, providing independent DC-coupled interfacing to 1.8V, 2.5V, or 3.3V ICs. Eight discrete levels of input equalization can be selected through a digital control input, enabling the equalizer to be matched to a range of transmission line path loss. When correctly set to match the path loss, the MAX3804 provides optimal performance over a wide range of data rates and formats.

Key Features

Applications/Uses

Compensates Up to 30in (0.75m) of 6-mil FR-4 Transmission Line Loss
115mW Operating Power
Up to 12.5Gbps Data Rate
Compatible with 8B10B, 64B66B, and PRBS Data
Less than 30ps_P-P Residual Jitter After Equalization
3-Bit Equalization Level Select Input
3mm x 3mm Thin QFN Package
DC-Coupling to 1.8V, 2.5V, or 3.3V CML I/O
-40°C to +85°C Operation
+3.3V Core Supply Voltage

	High-Speed Signal Distribution
	OC-192 and 10Gb Ethernet Serial Modules
	OC-192 and 10Gb Ethernet Switches and Routers

Key Specifications: Equalizers (Cable and Circuit Board)

Part Number

Applications

Min. Data Rate (Mbps)

Max. Data Rate (Mbps)

Max. Reach @ Max. Data Rate

Supply Voltage (V)

I/O Type

Channels Per Part

Typ. Rx Eq. @ Max. Rate (dB)

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX3804

•	Copper Cable Interconnect

•

Ethernet

•	Fibre channel

•	Infiniband

•	Printed Circuit Board Interconnect

•	SDH/ SONET/ DWDM/ ATM/ PONs

12500

0.8m FR4

3.3

CML

Yes

THIN QFN/16
Thin QFN/16

-40 to +85

$10.95 @ 1k

See All Equalizers (Cable and Circuit Board) (18)

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.