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See Technical Specifications

DS50PCI401SQE/NOPB

5.0-Gbps 4-lane redriver with equalization and De-Emphasis

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

DS50PCI401SQE/NOPB
Datasheet:

DS50PCI401SQE/NOPB Datasheet (PDF)
Type:

Buffer, ReDriver
Applications:

PCIe
Input:

CML
Output:

CML
EDA/CAD Models:

Request Free CAD Models for DS50PCI401SQE/NOPB

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DS50PCI401SQE/NOPB General Description

The DS50PCI401 is a low power, 4 lane bidirectional buffer/equalizer designed specifically for PCI Express Gen1 and Gen2 applications. The device performs both receive equalization and transmit de-emphasis, allowing maximum flexibility of physical placement within a system. The receiver is capable of opening an input eye that is completely closed due to inter-symbol interference (ISI) induced by the interconnect medium.

The transmitter de-emphasis level can be set by the user depending on the distance from the DS50PCI401 to the PCI Express endpoint. The DS50PCI401 contains PCI Express specific functions such as Transmit Idle, RX Detection, and Beacon signal pass through.

The device will change the load impedance on its input pins based on the state of RXDETA/B inputs detection. An internal rate detection circuit is included to detect if an incoming data stream is at Gen2 data rates, and adjusts the de-emphasis on it's output accordingly. The signal conditioning provided by the device allows systems to upgrade from Gen1 data rates to Gen2 without reducing their physical reach. This is true for FR4 applications such as backplanes, as well as cable interconnect.

Key Features

Input and Output signal conditioning increases PCIe reach in backplanes and cables
0.09 UI of residual deterministic jitter at 5Gbps after 42” of FR4 (with Input EQ)
0.11 UI of residual deterministic jitter at 5Gbps after 7m of PCIe Cable (with Input EQ)
0.09 UI of residual deterministic jitter at 5Gbps with 28” of FR4 (with Output DE)
0.13 UI of residual deterministic jitter at 5Gbps with 7m of PCIe Cable (with Output DE)
Adjustable Transmit VOD 800 to 1200mVp-p
Automatic power management on an individual lane basis via SMBus
Adjustable electrical idle detect threshold.
Data rate optimized 3-stage equalization to 26 dB gain
Data rate optimized 6-level 0 to 12 dB transmit de-emphasis
Flow-thru pinout in 10mmx5.5mm 54-pin leadless WQFN package
Single supply operation at 2.5V
>6kV HBM ESD rating
-10 to 85°C operating temperature range

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Specifications

Category	Integrated Circuits (ICs)InterfaceSignal Buffers, Repeaters, Splitters	Series	-
Type	Buffer, ReDriver	Applications	PCIe
Input	CML	Output	CML
Data Rate (Max)	5Gbps	Number of Channels	8
Delay Time	200ps	Signal Conditioning	Input Equalization, Output De-Emphasis
Capacitance - Input	10 pF	Voltage - Supply	2.375V ~ 2.625V
Current - Supply	-	Operating Temperature	-10°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	DS50PCI401
Product Category	Equalizers	Mounting Style	SMD/SMT
Data Rate	5 Gb/s	Operating Supply Voltage	2.5 V
Operating Supply Current	304 mA	Minimum Operating Temperature	- 10 C
Maximum Operating Temperature	+ 85 C	Moisture Sensitive	Yes
Number of Drivers	8 Driver	Number of Receivers	8 Receiver
Operating Temperature Range	- 10 C to + 85 C	Pd - Power Dissipation	950 mW
Product Type	Equalizers	Factory Pack Quantity	250
Subcategory	Equalizers	Unit Weight	0.004794 oz