ASP010C(I)Dxxxx040 : XXXX means wavelength of 15xx.xx

Absoluximte Maum Ratings

Recommended Operating Conditions

Optical Characteristics

Note：

1.        Launched power (avg.) is power coupled into a single mode fiber with master connector.（Before of Life）

         2.        λc refer to wavelength selection, and corresponds to approximately 0.8 nm.

         3.        Measured with conformance test signal for BER = 10^–12.@10.3125Gbps,

PRBS=2^31-1,NRZ,Optical source with worst ER，Wavelength between 1528.77nm and 1563.86nm；back to back

Electrical Characteristics

Notes:

1.       Measured with receive Pin=Psen,Vcc=3.3V, operation temperature range, without air flow

2.       Connected directly to TX data input pins. AC coupled .

3.       Or open circuit.

4.       Into 100 ohms differential termination.

      5.    20 – 80 %.

6.        Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

7.        Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.

Pin Description

Notes:

1.        Circuit ground is internally isolated from chassis ground.

2.        TFAULT is an LVTTL output.A high output indicates a transmitter fault caused by either the TX bias current or the TX output power or the       laser  temperature 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 on host board to a typical 3.3V voltage. MOD_ABS pulls low to indicate module is plugged in.

               5.      LOS is open collector output. It should be pulled up with 4.7kΩ – 10kΩ on host board to a typical 3.3V voltage. Logic 0 indicates normal                         operation; logic 1 indicates loss of signal.

Digital Diagnostic Functions

Accelight’s ASP010ICxxxx040 serial transceivers 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, Accelight 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.