Products / Host Cards / PCIe x8 / External PCIe (SFF-8644)

EPCIE8XRDCA03

External PCIe (SFF-8644 1x2) to PCIe x8 Gen 3 Active (Redriver with Linear Equalization) Cable Adapter

Specifications

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Highlights

External PCIe (SFF-8644 1x2) to PCIe x8 Gen 3 Active (Redriver with Linear Equalization) Cable Adapter
- PCIe x8 Edge Finger
- Redriver with Linear Equalization support PCIe Gen 1/2/3 Protocol
  - Pin Strap Configuration (DIP Switch Setting)
    - Rx Equalization
    - Output Swing
    - Tx Flat Gain
- External PCIe Cable Port (SFF-8644 1x2 Connector)
  - 4-Lane External PCIe Application: Mini SAS HD 4x Cable
  - 8-Lane External PCIe Application: Two Mini SAS HD 4x Cables or One Mini SAS HD 8x Cable
Supports Low Profile PCI Form Factor (Low Profile PCI Bracket S-BR-00248-16-1020)
Application: NTB (Non-Transparent Bridging)

Introduction

EPCIE8XRDCA03 is External PCIe (SFF-8644 1x2) to PCIe x8 Gen 3 Active (Redriver with Linear Equalization) Cable Adapter, it requires no additional software or drivers to operate.

Designed to overcome the limited PCIe connectivity of most server computers, the EPCIE8XRDCA03 can be quickly and easily set up for external connection.

EPCIE8XRDCA03 provides programmable Linear Equalization, Output Swing and Flat Gain by pin strapping easily. The programmable settings can be applied easily via jumper. EPCIE8XRDCA03 offers fully Linear Transfer function to fully comply with all PCIe 3 Link Training signals.

The integrated equalization circuitry provides flexibility with signal integrity of the PCI Express signal before the Redriver, whereas the integrated Flat Gain circuitry provides flexibility with signal integrity of the PCI Express signal after the Redriver.

Technical Specifications

PCIe Host Port

PCIe x8 Edge Finger

External PCIe Port

SFF-8644 1x2 Connector
- 100ohm, 72pin
Each SFF-8644 Connector 4-lane PCI Express
- PCIe Gen 1 (2.5 GT/s)
- PCIe Gen 2 (5.0 GT/s)
- PCIe Gen 3 (8.0 GT/s)

ReDriver Feature

PCIe 2.5/5.0/8.0Gbps ReDriver with Linear Equalization
- 2.5/5.0/8.0Gbps Serial Link with Linear Equalizer
- Support PCIe Gen 1/2/3 Protocol
- Independent Channel Configuration of Receiver Equalization, Output Swing and Flat Gain
- Per Channel Activity Detector with Selectable Input Termination between 50Ωto Vcc and 200KΩto Vcc
- Per Channel Output Termination Detector on Power up with Selectable Output Termination between 50Ωto Vcc and High Impedance
- Very Linear Transfer Function
- Fully Compliant to PCISIG Link Training
- Single-Ended Mode Receiver Detection for PCIe
- Input Threshold Detection

Computer Platform Requirements

Desktop computer equipped with a PCIe 1.0/2.0/3.0 x8, x16 slot

Setting for
Signal Detect Threshold,
Output Swing and Flat Gain,
Receiver Equalization

Signal Detect Threshold fixed to
ON = 130mVppd, OFF = 30mVppd
Output Swing fixed to
1000 mVp-p

Output Flat Gain Setting (dB) (LSW1, HSW1)
LSW1: PCIe 0~3 Output Flat Gain Setting
HSW1: PCIe 4~7 Output Flat Gain Setting

TX (Pin1&2)		RX (Pin3&4)		dB
1 (FG0)	2 (FG1)	3 (FG0)	4 (FG1)	dB
ON	ON	ON	ON	-3.5dB
OFF	ON	OFF	ON	-1.5dB
ON*	OFF*	ON*	OFF*	0.5dB*
OFF	OFF	OFF	OFF	2.5dB

Equalization setting (HRXSW2, HTXSW2, LRXSW2, LTXSW2)
LRXSW2, LTXSW2: PCIe 0~3 Equalization Setting
HRXSW2, HTXSW2: PCIe 4~7 Equalization Setting

1	2	3	4	Input Equalization
EQ3	EQ2	EQ1	EQ0	db@ 2.5GH	db@ 4GH
ON*	ON*	ON*	ON*	6.1dB	8.5dB
ON	ON	ON	OFF	6.3dB	9.0dB
ON	ON	OFF	ON	6.6dB	9.5dB
ON	ON	OFF	OFF	6.9dB	10.0dB
ON	OFF	ON	ON	7.2dB	10.6dB
ON	OFF	ON	OFF	7.5dB	11.1dB
ON	OFF	OFF	ON	7.8dB	11.5dB
ON	OFF	OFF	OFF	8.1dB	12.0dB
OFF	ON	ON	ON	8.4dB	12.4dB
OFF	ON	ON	OFF	8.7dB	12.9dB
OFF	ON	OFF	ON	9.0dB	13.3dB
OFF	ON	OFF	OFF	9.3dB	13.7dB
OFF	OFF	ON	ON	9.6dB	14.0dB
OFF	OFF	ON	OFF	9.9dB	14.4dB
OFF	OFF	OFF	ON	10.2dB	14.7dB
OFF	OFF	OFF	OFF	10.5dB	15.1dB

Physical Dimensions

70mm(H) x 98.2mm(L)
NW:57.8g

Kit includes

EPCIE8XRDCA03

Optional Accessories

SFF-8644 Cable (