AFCT-5760TP Avago Technologies US Inc., AFCT-5760TP Datasheet - Page 3

• Manufacturer Part Number: AFCT-5760TP
• Manufacturer: Avago Technologies US Inc.

Specifications of AFCT-5760TP

• Optical Fiber Type: TX/RX
• Data Transfer Rate: 155Mbps
• Optical Rise Time: 2.5ns
• Optical Fall Time: 2.5ns
• Operating Temperature Classification: Commercial
• Peak Wavelength: 1360nm
• Package Type: SFP
• Operating Supply Voltage (min): 3.1V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.5V
• Operating Temp Range: -10C to 85C
• Mounting: Snap Fit To Panel
• Pin Count: 20
• Lead Free Status / RoHS Status: Compliant

Transmitter Section
The transmitter section includes a 1310 nm Fabry-Perot
laser and a transmitter driver circuit. The driver circuit
maintains a constant optical power level provided that
the data pattern is valid for NRZ code. Connection to the
transmitter is provided via a LC optical connector.
The transmitter has full IEC 825 and CDRH Class 1 eye
safety.
TX_DISABLE
The transmitter output can be disabled by asserting pin
3, TX_DISABLE. A high signal asserts this function while
a low signal allows normal laser operation. The transmit-
ter output can also be disabled and monitored via the
2-wire serial interface. In the event of a transceiver fault,
such as the activation of the eye safety circuit, toggling
of the TX_DISABLE will reset the transmitter, as depicted
in Figure 2.
Figure 2. Typical Application Configuration
3
PROTOCOL
REFCLK
IC
Tx_FAULT
Rx_RATE
Rx_LOS
GPIO(X)
GPIO(X)
EWRAP
VREFR
GP14
RBC
TBC
TX[0:9]
TBC
EWRAP
RX[0:9]
RBC
Rx_RATE
3.3 V
REFCLK
VREFR
3.3 V
4.7 K to 10 KΩ
10 µF
SO+
SO–
SI+
SI–
100 Ω
0.1 µF
4.7 K to 10 KΩ
4.7 K to
10 KΩ
50 Ω
50 Ω
50 Ω
50 Ω
TX_FAULT
A laser fault or a low V
mitter fault signal, TX_FAULT, and disable the laser. This
signal is an open collector output (pull-up required on
the host board); A low signal indicates normal laser op-
eration and a high signal indicates a fault. The TX_FAULT
will be latched high when a laser fault occurs and is
cleared by toggling the TX_DISABLE input or power
cycling the transceiver. The TX_FAULT is not latched for
Low V
monitored via the two-wire serial interface (address A2,
byte 110, bit 2). By default, TX_FAULT is set to trigger on
hardware faults only.
4.7 K to
10 KΩ
1 µH
1 µH
CC
10 µF
. The transmitter fault condition can also be
4.7 K to
10 KΩ
Tx_DISABLE
Tx_FAULT
0.1 µF
MOD_DEF2
MOD_DEF1
MOD_DEF0
Rx_LOS
3.3 V
TD+
TD–
RD+
RD–
0.1
RX GND
TX GND
µF
V CC ,T
V CC ,R
CC
0.01 µF
0.01 µF
0.01 µF
0.01 µF
condition will activate the trans-
4.7 K to 10 KΩ
V CC ,R
V CC ,R
100 Ω
SFP MODULE
50 Ω
50 Ω
AMPLIFICATION
LASER DRIVER
QUANTIZATION
EEPROM
CIRCUITRY
& SAFETY
&