MAX14950A Datasheet, PDF (1/20 Pages) Maxim Integrated Products – Single-Lane PCIe Equalizer/Redriver

MAX14950A
Single-Lane PCIe Equalizer/Redriver
General Description
The MAX14950A dual equalizer/redriver improves PCI
Express^® (PCIe) signal integrity by providing program-
mable input equalization. This feature reduces deter-
ministic jitter and redrives circuitry to reestablish deem-
phasis, which compensates for circuit-board loss at high
frequencies. The device permits optimal placement of
key PCIe components and allows for longer runs of strip-
line, microstrip, or cable.
The device contains two identical channels capable
of equalizing PCIe Gen III (8GT/s), Gen II (5GT/s), and
Gen I (2.5GT/s) signals and features electrical idle and
receiver detection.
The MAX14950A is available in a small, 40-pin, 5.0mm
x 5.0mm TQFN package with flow-through traces for
optimal layout and minimal space requirements. It is
specified over the 0NC to +70NC commercial operating
temperature range.
Applications
Servers
Test Equipment
External Graphics Applications
Communications Switchers
Storage Area Networks
Benefits and Features
S Innovative Design Eliminates Need for Costly
External Components
 Single +3.3V Supply Operation
S Increased Design Flexibility for Backward-
Compatible Applications
 Optimized for PCIe Gen III (8GT/s) and
Gen II (5GT/s) Signals and Compatible with
Gen I (2.5GT/s) Signals
S High Level of Integration for Performance
 Random Jitter: 0.5ps_RMS, Deterministic
Jitter: 7ps_p-p
 Four-Level-Programmable Input Equalization
 Eight-Level-Programmable Output Emphasis
 Electrical Idle Detection
 Receiver Detection Permits Completely
Transparent Operation
S Ideal for Space-Sensitive Applications
 On-Chip 50I Input/Output Terminations
 40-Pin, 5.0mm x 5.0mm TQFN Packaging
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
refer to www.maximintegrated.com/MAX14950A.related.
Typical Operating Circuit
MAIN BOARD
Tx
PCIe
Rx
MAX14950A
MIDPLANE
SINGLE DIFFERENTIAL PAIR
SINGLE DIFFERENTIAL PAIR
REMOTE BOARD
Rx
PCIe
Tx
CONNECTORS
PCI Express is a registered service mark of PCI-SIG Corporation.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5965; Rev 1; 4/13