Transmission data rate up to 11.2Gbps per channel
Compliant to IEEE 802.3ba specification for 40GBASE-LR4 links
High Sensitivity PIN-TIA with AAWG DEMUX.
Power consumption<2.5W,3.3V power supply
Operating case temperature 0 to 70°C
Description Review
Product Overview
The SFP-GQS-SPO400-LR4C is a 4x10G hot pluggable optical transceiver. The LYCOM technology enables the integration of 4 transmitters, 4 receivers and an optical MUX/DeMUX with AAWG into a small form factor package that delivers a 40 Gbps data link in a compact QSFP footprint. The optical connectivity is based on two SMF LC connectors, one for Tx and one for Rx. The Tx and Rx each consist of 4 10Gb/s CWDM channels, whose wavelengths are in the 1300nm range. The QSFP-LR transceiver is designed for applications based on the QSFP MSA, IEEE 802.3ba, and 40GBASE-LR4 requirements of up to 10km reach.

Product Overview

Transmission data rate up to 11.2Gbps per channel
QSFP+ MSA compliant
Compliant to IEEE 802.3ba specification for 40GBASE-LR4 links
4 CWDM un-cooled DFB lasers, using ITU G.694.2 wavelength grid at 1271, 1291, 1311, and 1331 nm , with AAWG.
High Sensitivity PIN-TIA with AAWG DEMUX.
Up to 10km reach over standard single mode fiber
Compliant with QDR/DDR Infiniband data rates
Hot pluggable electrical interface
Power consumption<2.5W
Operating case temperature 0°C to +70°C
3.3V power supply
RoHS 6 compliant(lead free)

Pin Descriptions        
Pin Logic Symbol Name/Description Ref.
1   GND Module Ground 1
2 CML-I Tx2- Transmitter inverted data input  
3 CML-I Tx2+ Transmitter non-inverted data input  
4   GND Module Ground 1
5 CML-I Tx4- Transmitter inverted data input  
6 CML-I Tx4+ Transmitter non-inverted data input  
7   GND Module Ground 1
8 LVTTL-I MODSEIL Module Select 2
9 LVTTL-I ResetL Module Reset 2
10   VCCRx +3.3v Receiver Power Supply  
11 LVCMOS-I SCL 2-wire Serial interface clock 2
12 LVCMOS-I/O SDA 2-wire Serial interface data 2
13   GND Module Ground 1
14 CML-O RX3+ Receiver non-inverted data output  
15 CML-O RX3- Receiver inverted data output  
16   GND Module Ground 1
17 CML-O RX1+ Receiver non-inverted data output  
18 CML-O RX1- Receiver inverted data output  
19   GND Module Ground 1
20   GND Module Ground 1
21 CML-O RX2- Receiver inverted data output  
22 CML-O RX2+ Receiver non-inverted data output  
23   GND Module Ground 1
24 CML-O RX4- Receiver inverted data output  
25 CML-O RX4+ Receiver non-inverted data output  
26   GND Module Ground 1
27 LVTTL-O ModPrsL Module Present, internal pulled down to GND  
28 LVTTL-O IntL Interrupt output, should be pulled up on host board 2
29   VCCTx +3.3v Transmitter Power Supply  
30   VCC1 +3.3v Power Supply  
31 LVTTL-I LPMode Low Power Mode 2
32   GND Module Ground 1
33 CML-I Tx3+ Transmitter non-inverted data input  
34 CML-I Tx3- Transmitter inverted data input  
35   GND Module Ground 1
36 CML-I Tx1+ Transmitter non-inverted data input  
37 CML-I Tx1- Transmitter inverted data input  
38   GND Module Ground 1
1. Module circuit ground is isolated from module chassis ground within the module.
2. Open collector; should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15V and 3.6V.

Ordering information
Part Number Product Description
SFP-GQS-SPO400-LR4C 40Gbps QSFP+ LR4,40GE Ethernet, Pull-Tab,10 km on a standard single mode fiber
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