CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

100G QSFP28 ZR4 Optical Transceiver Module
CAQS-SPO101-ZR4CFeatures

4 channels full-duplex transceiver modules

Transmission data rate up to 27.95Gbps perchannel

4 X 25/28G LAN-WDM EML Integrated TOSA
Cooling transmitter

4 X PIN+SOA Receivers

Internal CDR circuits on both receiver andtransmitter channels

Power consumption < 6W

Hot Pluggable QSFP form factor

Up to 80km transmission on single mode fiberDuplex LC receptacles



Built-in digital diagnostic functionsOperating case temperature 0℃ to +70℃



3.3V power supply voltage

RoHS compliant(lead free)

Applications
100GBASE-ZR4

Description
This product is a 100Gbps transceiver module designed for optical communication applications
compliant to 100GBASE-ZR4. The module converts 4 input channels of 25Gb/s electrical data to 4channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s
optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input
into 4 channels of LAN WDM optical signals and then converts them to 4 output channels of electricaldata.
The central wavelengths of the 4 LAN WDM channels are 1295.56, 1300.05, 1304.58 and 1309.14 nm
as members of the LAN WDM wavelength grid defined in IEEE 802.3ba. The high performance cooled
LAN WDM EML transmitters and high sensitivity PIN+SOA receivers provide superior performance for
100Gigabit Ethernet applications up to 80km links.

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

The product is designed with form factor, optical/electrical connection and digital diagnostic interface
according to the QSFP28 Multi-Source Agreement. It has been designed to meet the harshest external
operating conditions including temperature, humidity and EMI interference.

Figure1. Module Block Diagram

Absolute Maximum Ratings
Parameter

SymbolMinMax

Unit

Supply Voltage

Vcc-0.3

3.6

V

Input Voltage

Vin-0.3

Vcc+0.3

V

Storage TemperatureTst-2085ºC

Case Operating Temperature

Top070ºC

Humidity(non-condensing)

Rh585%

Recommended Operating Conditions
Parameter

SymbolMin

TypicalMax

Unit

Supply VoltageVcc

3.13

3.3

3.47

V

Operating Case temperature

Tca

070ºC

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Data Rate Per Lane

fdHumidity

Rh

Power Dissipation
Link Distance with G.652

25.7812527.9525

Gbps

85%

P6W

D80km

Max

Unit

5

Electrical Specifications
Parameter

SymbolMin

TypicalPower Consumption

P6W

Supply Current

Icc

1.9A

900

mVpp

110

Ohm

900mVpp110

Ohm

Transmitter(each Lane)
Differential Input Voltage Swing

Vin

Differential Input Impedance

Zin

90100

Receiver(each Lane)
Differential Output Voltage Swing

Vout300

Differential Output Impedance

Zout

90100

Optical Characteristics
QSFP28 100GBASE-ER4
Parameter

SymbolData Rate, each Lane

fd

Lane Wavelength

Min

TypicalMax

Unit

25.7812527.9525Gbps

L01294.531295.56

1296.59nm

L11299.021300.051301.09nm

L21303.541304.581305.63nm

L31308.091309.141310.19

nm

Notes

Transmitter
SMSR

SMSR

30

Total Average Launch PowerPT

610.5dBm

Average Launch Power,each Lane

PAVG

04.5dBm

Difference in launch power
between any two lanes(Averageand OMA) between any TwoLanes (OMA)

Ptx,diff

3.6

dB

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Extinction Ratio

ER

RIN20OMA

RIN

-130

dB/Hz

Optical Return Loss Tolerance

TOL

20

dB

Transmitter Reflectance

RT-12

dB

Eye Mask coordinates:
X1, X2, X3, Y1, Y2, Y3
Average Launch Power OFF
Transmitter, each LanedB

8{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}

Poff1-30dBm-28-3.5

dBm-29-3.5dBm

SEN-28dBm2Receiver sensitivity Average,each lane(100GbE)

SEN-29dBm2LOS Assert

LOSA

LOS Deassert

LOSD

LOS Hysteresis

LOSH

Receiver Electrical 3 dB upper
Cutoff Frequency, each Lane

Fc

Receiver
Average Receive Power, eachlane(OTU4)
Average Receive Power, eachlane(100GE)
Equivalent Sensitivity for Eachlane(OTU4)

-38

dBm
-29

0.5

dBm
dB

31

GHz

Note：
1. See Figure below.
2. Sensitivity is specified at BER@5E-5 with FEC.

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Pin Descriptions
PinLogicSymbol

Name/Description

Ref.

GND

Module Ground

112

CML-I

Tx2-

Transmitter inverted data input

3CML-I

Tx2+

Transmitter non-inverted data input

GND

Module Ground

415

CML-I

Tx4-

Transmitter inverted data input

6CML-I

Tx4+

Transmitter non-inverted data input

GND

Module Ground178

LVTTL-I

MODSEIL

Module Select29

LVTTL-I

ResetL

Module Reset

2VCCRx+3.3v Receiver Power Supply1011LVCMOS-I

SCL

2-wire Serial interface clock212

LVCMOS-I/OSDA

2-wire Serial interface data

2GND

Module Ground

11314

CML-O

RX3+

Receiver non-inverted data output

15CML-O

RX3-

Receiver inverted data output

GND

Module Ground

16

117

CML-O

RX1+

Receiver non-inverted data output

18

CML-O

RX1-

Receiver inverted data output

19

GND

Module Ground

120

GND

Module Ground

121

CML-O

RX2-

Receiver inverted data output

22

CML-O

RX2+

Receiver non-inverted data output

GND

Module Ground

23
24

CML-O

RX4-

Receiver inverted data output

25CML-O

RX4+Receiver non-inverted data output

GND

Module Ground

26

1127

LVTTL-O

ModPrsL

Module Present, internal pulled down to GND

28

LVTTL-O

IntL

Interrupt output, should be pulled up on host board

29

VCCTx

+3.3v Transmitter Power Supply

30

VCC1+3.3v Power Supply

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31

LVTTL-I

LPModeLow Power Mode2GND

Module Ground

132
33

CML-I

Tx3+

Transmitter non-inverted data input

34

CML-I

Tx3-

Transmitter inverted data input

GND

Module Ground

3536

CML-I

Tx1+

Transmitter non-inverted data input

37

CML-I

Tx1-

Transmitter inverted data input

GND

Module Ground

38

1

1

Notes:
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 3.15Vand
3.6V.

Figure2. Electrical Pin-out Details
ModSelL Pin
The ModSelL is an input pin. When held low by the host, the module responds to 2-wire serial
communication commands. The ModSelL allows the use of multiple QSFP modules on a single 2-wireinterface bus. When the ModSelL is “High”, the module will not respond to any 2-wire interface
communication from the host.ModSelL has an internal pull-up in the module.
ResetL Pin

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Reset. LPMode_Reset has an internal pull-up in the module. A low level on the ResetL pin for longer
than the minimum pulse length (t_Reset_init) initiates a complete module reset, returning all user
module settings to their default state. Module Reset Assert Time (t_init) starts on the rising edge after
the low level on the ResetL pin is released. During the execution of a reset (t_init) the host shalldisregard all status bits until the module indicates a completion of the reset interrupt. The module
indicates this by posting an IntL signal with the Data_Not_Ready bit negated. Note that on power up(including hot insertion) the module will post this completion of reset interrupt without requiring a reset.
LPMode Pin
CA OPTRONICS GROUP QSFP28 module operate in the low power mode (less than 1.5 Wpower consumption)This pin active high will decrease power consumption to less than 1.5W.
ModPrsL Pin
ModPrsL is pulled up to Vcc on the host board and grounded in the module. The ModPrsL is asserted“Low” when the module is inserted and deasserted “High” when the module is physically absent from thehost connector.
IntL Pin
IntL is an output pin. When “Low”, it indicates a possible module operational fault or a status critical tothe host system. The host identifies the source of the interrupt by using the 2-wire serial interface. The
IntL pin is an open collector output and must be pulled up to Vcc on the host board.

DIAGNOSTIC MONITORING INTERFACE
The following digital diagnostic characteristics are defined over the normal operating conditions unlessotherwise specified.
Parameter

SymbolMinMax

Units

Notes

Temperature monitor
absolute error

DMI_Temp-3+3

degC

Over operating
temperature range

Supply voltage monitor
absolute error

DMI _VCC-0.10.1V

Over full operating
range

Channel RX power monitor
absolute error

DMI_RX_Ch-22dB

1Channel Bias currentmonitor

DMI_Ibias_Ch-10%10%mA

Channel TX power monitor
absolute error

DMI_TX_Ch-22dB

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Notes:
Due to measurement accuracy of different single mode fibers, there could be an additional +/-1 dB fluctuation,
or a +/- 3 dB total accuracy.

Digital diagnostics monitoring function is available on all CA OPTRONICS GROUP QSFP28
module. A 2-wire serialinterface provides user to contact with module.
The structure of the memory is shown in Figure 3. The memory space is arranged into a lower, single
page, address space of 128 bytes and multiple upper address space pages. This structure permits
timely access to addresses in the lower page, such as Interrupt Flags and Monitors. Less time criticaltime entries, such as serial ID information and threshold settings, are available with the Page Selectfunction.
The interface address used is A0xh and is mainly used for time critical data like interrupt handling inorder to enable a one-time-read for all data related to an interrupt situation. After an interrupt, IntL, hasbeen asserted, the host can read out the flag field to determine the affected channel and type of flag.

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Figure3. QSFP Memory Map

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Figure4. Low Memory Map

Figure5. Page 03 Memory Map

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Figure6. Page 00 Memory Map
Page02 is User EEPROM and its format decided by user.
The detail description of low memory and page00.page03 upper memory please see SFF-8436 document.

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CAQS-SPO101-ZR4C 100G QSFP28 ZR4 Optical Transceiver Module R01

Mechanical Dimensions

Unit(MM)

Figure7. Mechanical Specifications

Regulatory Compliance
CA OPTRONICS GROUP CAQS-SPO101-ZR4C transceivers are Class 1 Laser Products. They meetthe requirements ofthe following standards:
FeatureLaser Safety

Electrical Safety

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Standard
IEC 60825-1:2014 (3rd Edition)
IEC 60825-2:2004/AMD2:2010
EN 60825-1-2014
EN 60825-2:2004+A1+A2
EN 62368-1: 2014
IEC 62368-1:2014
UL 62368-1:2014

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Environmentalprotection

CE EMC

FCC

Directive 2011/65/EU withamendment(EU)2015/863
EN55032：2015
EN55035：2017
EN61000-3-2:2014
EN61000-3-3:2013
FCC Part 15, Subpart B
ANSI C63.4-2014

References
1. SFF-8436 QSFP+
2. Ethernet 100GBASE-ZR4

CAUTION:Use of controls or adjustment or performance of procedures other than those specified herein may resultin hazardous radiation exposure.

Ordering information
Part Number
CAQS-SPO101-ZR4C

Product
Description
100GE,OTU4, QSFP28, 100GBASE-ZR4, LAN_WDM 80km

Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and mustbe specifically confirmed in writing by CA OPTRONICS GROUP before they become applicable to any
particular order orcontract. In accordance with the CA OPTRONICS GROUP policy of continuous
improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective
rights of CA OPTRONICS GROUP or others. Further details are available from any CA OPTRONICSGROUP sales representative.
E-mail:sales@caoptronicsgroup.com
Official Site:www.caoptronicsgroup.com

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