Note:
1. Class 1 Laser Safety per FDA/CDRH and IEC-825-1 regulations.
2. λ”is:1270,1290,1310,1330,1350,1370,1390,1410,1430,1450, 1470,1490,1510,1530,1550,1570,1590,1610,please the “product selection” .
3. Measured with a PRBS 231-1 test pattern, @10.325Gb/s, BER<10-12 .
4 Electrical Interface Characteristics
Parameter
Symbol
Min.
Typical
Max.
Unit
Ref.
Supply Voltage
Vcc
3.14
3.3
3.46
V
Supply Current
Icc
450
mA
Transmitter
Input differential impedance
Rin
100
Ω
1
Differential data input swing
Vin,pp
180
1200
mV
Transmit Disable Voltage
VD
Vcc–1.3
Vcc
V
Transmit Enable Voltage
VEN
Vee
Vee+ 0.8
V
2
Transmit Disable Assert Time
10
us
Receiver
Differential data output swing
Vout,pp
300
850
mV
3
Data output rise time
tr
30
ps
4
Data output fall time
tf
30
ps
4
LOS Fault
VLOS fault
Vcc–1.3
VccHOST
V
5
LOS Normal
VLOS norm
Vee
Vee+0.8
V
5
Notes:
1. Connected directly to TX data input pins. AC coupled thereafter.
2. Or open circuit.
3. Input 100 ohms differential termination.
4. These are unfiltered 20-80% values
5. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected
5 Pin Descriptions
6 Transceiver Block Diagram
Pin
Symbol
Name/Description
NOTE
1
VEET
Transmitter Ground (Common with Receiver Ground)
1
2
TFAULT
Transmitter Fault.
2
3
TDIS
Transmitter Disable. Laser output disabled on high or open.
3
4
SDA
2-wire Serial Interface Data Line
4
5
SCL
2-wire Serial Interface Clock Line
4
6
MOD_ABS
Module Absent. Grounded within the module
4
7
RS0
Rate Select 0
5
8
LOS
Loss of Signal indication. Logic 0 indicates normal operation.
6
9
RS1
No connection required
1
10
VEER
Receiver Ground (Common with Transmitter Ground)
1
11
VEER
Receiver Ground (Common with Transmitter Ground)
1
12
RD-
Receiver Inverted DATA out. AC Coupled
13
RD+
Receiver Non-inverted DATA out. AC Coupled
14
VEER
Receiver Ground (Common with Transmitter Ground)
1
15
VCCR
Receiver Power Supply
16
VCCT
Transmitter Power Supply
17
VEET
Transmitter Ground (Common with Receiver Ground)
1
18
TD+
Transmitter Non-Inverted DATA in. AC Coupled.
19
TD-
Transmitter Inverted DATA in. AC Coupled.
20
VEET
Transmitter Ground (Common with Receiver Ground)
1
Note:
1. Circuit ground is internally isolated from chassis ground.
2. TFAULT is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V.A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to <0.8V.
3. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
4. Should be pulled up with 4.7kΩ- 10kΩ host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is plugged in.
5. Internally pulled down per SFF-8431 Rev 4.1.
6. LOS is open collector output. It should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
7 Digital Diagnostic Functions
10G SFP+ CWDM 10KM LC SMF Fiber Optic Transceiver support the 2-wire serial communication protocol as defined in the SFP+MSA.The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information.
Additionally, ZION SFP+ transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.
The SFP+ MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h).The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.
The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.
8 Host – Transceiver Interface Block Diagram
9 Outline Dimensions
Comply to SFF-8432 rev. 5.0, the improved Pluggable form factor specification.
10 Regulatory Compliance
Feature
Reference
Performance
Electrostatic discharge(ESD)
IEC/EN 61000-4-2
Compatible with standards
Electromagnetic Interference (EMI)
FCC Part 15 Class B EN 55022 Class B (CISPR 22A)
Compatible with standards
Laser Eye Safety
FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1, 2
Class 1 laser product
Component Recognition
IEC/EN 60950, UL
Compatible with standards
ROHS
2002/95/EC
Compatible with standards
EMC
EN61000-3
Compatible with standards
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