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TeraWire™ 100G QSFP28 to 4x25G SFP28 Breakout

Up to 28.05 Gbps per channel
4 independent full-duplex
Single 3.3 V power supply
Low power consumption: < 2.0 W on QSFP end, < 1 W on SFP end
Up to 30 meter*
Hot pluggable
RoHS compliant
Commercial operating case temperature range: 0 to 70oC
TeraWire™ 100G QSFP28 to 4×25G SFP Breakout fully takes advantage of the high transmission bandwidth, low power consumption, and long reach.
More Infomation

 

Absolute Maximum Ratings
Parameters
Symbol
Min.
Typ.
Max.
Units
Note
Supply Voltage
VIN
0
-
4.0
V
 
Storage Temperature
TSTG
-20
-
70
Ambient
Relative Humidity
RH
5
 
85
%
 


Operating Specifications
Parameters
Symbol
Min.
Typ.
Max.
Units
Note
Operating Case Temperature
TOP
0
-
70
 
Power Supply Voltage
VCC
3.1
3.3
3.5
V
 
Power Supply Current
SFP28
ICC
-
300
-
mA
 
QSFP28   600      
Power Consumption
SFP28
-
-
1.0
-
W
 
QSFP28   2.0      
Electrical Characteristics
Parameters Symbol Min. Typ. Max. Units Note
Data Rate(per Channel) BR 10.00 25.78 28.05 Gbps  
Transmitter            
Input Differential Impedance RIN - 100 - Ω  
Differential Data Input Swing VINP-P 900  mV   
Reciver           
Output Differential Impedance ROUT - 100 Ω   
Differential Data Output Swing VOUT-P 800  mV 
Bit Error Ratio 10-12  

PRBS 231-1



Pin Description(SFP28 Terminal)

Pin  Name  Description  Note 
1 VeeT Module Transmitter Ground 1
Tx_Fault  Module Transmitter Fault 2
Tx_Disable Transmitter Disable; Turns off transmitter laser output 3
SDA 2-wire Serial Interface Data Line 4
SCL 2-wire Serial Interface Clock 4
Mod_ABS Module Absent, grounded within the module  
RS0 Rate Select 0, optionally controls SFP+ module receiver 5
Rx_LOS Receiver Loss of Signal Indication
RS1  Rate Select 1, optionally controls SFP+ module transmitter
10  VeeR Module Receiver Ground 1
11  VeeR Module Receiver Ground
12  RD- Receiver Inverted Data Output  
13  RD+ Receiver Non-Inverted Data Output  
14  VeeR Module Receiver Ground
15  VccR Module Receiver 3.3V Supply  
16  VccT Module Transmitter 3.3V Supply  
17  VeeT Module Transmitter Ground
18  TD+ Transmitter Non-Inverted Data Input  
19  TD- Transmitter Inverted Data Input
20  VeeT Module Transmitter Ground 1

Note : 1. The module signal ground contacts, VeeR and VeeT, should be isolated from the module case.
2. The TTL level TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ  resistor on the host
   board to VccT. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the
   output will be pulled to < 0.8V. When sensing an improper power level in the laser driver, the SFP sets this signal high and
   turns off the laser. TX-FAULT can be reset with the TX-DISABLE line.
3. TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module  with a
   4.7 – 10 KΩ resistor. The states are: Low (0 – 0.8V): Transmitter on / (>0.8, < 2.0V): Undefined / High (>2.0): Transmitter
   Disabled / Open:  Transmitter Disabled. Make TX-DISABLE high (TTL logic “1”) to turn off the laser output. The laser will turn
   on when TX-DISABLE is low (TTL logic “0”).
4. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩ resistor on the host board  to supply
   less than VccT+0.3V or VccR+0.3V.
5. No used.


 

Pin Description(QSFP28 Terminal)
Pin  Name  Description  Note 
1 GND Ground 1
2 Tx2n Transmitter Inverted Data Input  
3 Tx2p Transmitter Non-Inverted Data Input  
4 GND Ground  1
5 Tx4n Transmitter Inverted Data Input
Tx4p Transmitter Non-Inverted Data Input  
GND Ground
ModSelL Module Select  
ResetL Module Reset  
10  Vcc Rx 3.3V Power supply receiver 2
11  SCL 2-wire serial interface clock  
12  SDA 2-wire serial interface data  
13  GND Ground 1
14  Rx3p Receiver Non-Inverted Data Output  
15  Rx3n Receiver Inverted Data Output  
16  GND  Ground
17  Rx1p Receiver Non-Inverted Data Output  
18  Rx1n Receiver Inverted Data Output  
19  GND Ground 
20  GND Ground 
21  Rx2n Receiver Inverted Data Output  
22  Rx2p Receiver Non-Inverted Data Output  
23  GND Ground
24  Rx4n Receiver Inverted Data Output  
25 

Rx4p

Receiver Non-Inverted Data Output

 
26  GND Ground   
27  ModPrsL Module Present  
28  IntL Interrupt  
29  Vcc Tx 3.3V Power supply transmitter 2
30  Vcc 1 3.3V Power Supply 2
31  LPMode Low Power Mode  
32  GND Ground 1
33  Tx3p Transmitter Non-Inverted Data Input  
34  Tx3n Transmitter Inverted Data Input  
35  GND Ground  
36  Tx1p Transmitter Non-Inverted Data Input  
37  Tx1n Transmitter Inverted Data Input   
38  GND Ground 1
Note : 1. GND is the symbol for signal and supply (power) common for the QSFP module. All are common within the QSFP module
    and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal
    -common ground plane.
 2. Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Vcc Rx, Vcc1 and
    Vcc Tx may be internally connected within the QSFP transceiver module in any  combination. The connector pins are each rated
    for a maximum current of 500 mA.
 3. No used.
Mechanical Specifications(SFP28 Terminal)

Mechanical Specifications(QSFP28 Terminal)

Mechanical Specifications(Breakout)

Active Optical Cable

Parameters  value  Unit  Note 
Cable Diameter  Ø2.2 ± 0.15 mm  
Minimum Bend Radius  50  mm  
Lengh Tolerance  +300 / 0 mm  
Cable Jacket  PVC, Aqua    

Ordering Information

Part Number Description  Note 
CBOQC8G1003AZZ QSFP28 + 4×SFP28, AOC, 3 m  
CBOQC8G1005AZZ QSFP28 + 4×SFP28, AOC, 5 m  
CBOQC8G1010AZZ QSFP28 + 4×SFP28, AOC, 10 m  
CBOQC8G1xxxAZZ QSFP28 + 4×SFP28, customized length (upon request)