afbr-79q4ekz Avago Technologies, afbr-79q4ekz Datasheet - Page 4

• Manufacturer Part Number: afbr-79q4ekz
• Description: 40 Gigabit Ethernet 40gbase-sr4 Qsfp+ Pluggable, Parallel Fiber-optics Module
• Manufacturer: Avago Technologies

Regulatory & Compliance
Various standard and regulations apply to the modules.
These include eye-safety, EMC, ESD and RoHS. See the
Regulatory Section for details regarding these and com-
ponent recognition. Please note the module transmitter
is a Class 1M laser product – DO NOT VIEW RADIATION
DIRECTLY WITH OPTICAL INSTRUMENTS. See Regulatory
Compliance Table for details.
Package Outline
The module is designed to meet the package outline
defined in the QSFP+ SFF-8436 Specification. See the
package outline and host board footprint figures (Figures
13 – 16) for details.
Absolute Maximum Ratings
Stress in excess of any of the individual Absolute Maximum Ratings can cause immediate catastrophic damage to the
module even if all other parameters are within recommended operating conditions. It should not be assumed that
limiting values of more than one parameter can be applied to the module concurrently. Exposure to any of the Absolute
Maximum Ratings for extended periods can adversely affect reliability.
Note:
1. This is the maximum voltage that can be applied across the differential inputs without damaging the input circuitry.
4
Parameter
Storage Temperature
3.3 V Power Supply Voltage
Data Input Voltage – Single Ended
Data Input Voltage – Differential
Control Input Voltage
Control Output Current
Relative Humidity
Symbol
Ts
Vcc
|V
Vi
Io
RH
dip
- V
din
|
Handling and Cleaning
The transceiver module can be damaged by exposure to
current surges and over voltage events. Care should be
taken to restrict exposure to the conditions defined in
the Absolute Maximum Ratings. Wave soldering, reflow
soldering and/or aqueous wash process with the modules
on board are not recommended. Normal handling precau-
tions for electrostatic discharge sensitive devices should
be observed.
Each module is supplied with an inserted port plug for
protection of the optical ports. This plug should always be
in place whenever a fiber cable is not inserted.
The optical connector includes recessed elements that
are exposed whenever a cable or port plug is not inserted.
Prior to insertion of a fiber optic cable, it is recommended
that the cable end be cleaned to avoid contamination from
the cable plug. The port plug ensures the optics remains
clean and no additional cleaning should be needed. In the
event of contamination, dry nitrogen or clean dry air at
less than 20 psi can be used to dislodge the contamina-
tion. The optical port features (e.g. guide pins) preclude
use of a solid instrument. Liquids are also not advised.
Min
-0.5
-0.5
-0.5
-20
5
-40
Max
100
3.6
Vcc+0.5
1.0
Vcc+0.5, 3.6
20
95
Units
°C
V
V
V
V
mA
%
Reference
1