AFCT-5705PZ Avago Technologies US Inc., AFCT-5705PZ Datasheet - Page 3
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AFCT-5705PZ
Manufacturer Part Number
AFCT-5705PZ
Description
Gb/FC DMI SFPwBail Delatch-10/85C
Manufacturer
Avago Technologies US Inc.
Datasheet
1.AFCT-5701LZ.pdf
(20 pages)
Specifications of AFCT-5705PZ
Data Rate
1.25Gbd
Wavelength
1310nm
Applications
Ethernet
Voltage - Supply
3.14 V ~ 3.47 V
Connector Type
LC Duplex
Mounting Type
SFP
Rohs Compliant
Yes
Product
Transceiver
Maximum Rise Time
400 ps, 260 ps
Maximum Fall Time
400 ps, 260 ps
Pulse Width Distortion
0.227 ns, 0.267 ns
Operating Supply Voltage
3.14 V to 3.47 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 10 C
Package / Case
SFP-20
Function
SFP Optical Transceivers with Optional DMI for Gigabit Ethernet
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
Singlemode Glass
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Figure 2. Pin description of the SFP electrical interface.
Figure 3. Typical Application Configuration
3
106.25 MHz
20
19
18
17
16
15
14
13
12
11
PROTOCOL
V
TD–
TD+
V
V
V
V
RD+
RD–
V
EE
EE
CC
CC
EE
EE
REFCLK
TOP OF BOARD
T
T
R
R
T
R
IC
Tx_FAULT
Rx_RATE
Rx_LOS
GPIO(X)
GPIO(X)
EWRAP
VREFR
GP14
RBC
TBC
3 2 1
ENGAGEMENT
SEQUENCE
TX[0:9]
TBC
EWRAP
RX[0:9]
RBC
Rx_RATE
(AS VIEWED THROUGH TOP OF BOARD)
3.3 V
REFCLK
10
VREFR
1
2
3
4
5
6
7
8
9
3.3 V
BOTTOM OF BOARD
V
TX FAULT
TX DISABLE
MOD-DEF(2)
MOD-DEF(1)
MOD-DEF(0)
RATE SELECT
LOS
V
V
EE
EE
EE
T
R
R
4.7 K to 10 KΩ
10 μF
SO+
SO–
SI+
SI–
100 Ω
0.1 μF
3 2 1
4.7 K to 10 KΩ
4.7 K to
10 KΩ
50 Ω
50 Ω
50 Ω
50 Ω
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 8B/10B code. Connection to the
transmitter is provided via a LC optical connector.
The transmitter has full IEC 60825 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. In addition,
via the 2-wire serial interface the transmitter output can
be disabled (address A2h, byte 110, bit 6) or monitored
(address A2h, byte 110, bit 7). The contents of A2h, byte
110, bit 6 are logic OR’d with hardware Tx_Disable (pin
3) to control transmitter operation. In the event of a
transceiver fault, such as the activation of the eye safety
circuit, toggling of the TX_DISABLE will reset the trans-
mitter, as depicted in Figure 4.
4.7 K to
10 KΩ
1 μH
1 μH
10 μF
4.7 K to
10 KΩ
Tx_DISABLE
Tx_FAULT
0.1 μF
MOD_DEF2
MOD_DEF1
MOD_DEF0
Rx_LOS
3.3 V
RD+
RD–
TD+
TD–
0.1
RX GND
TX GND
μF
V CC ,T
V CC ,R
0.01 μF
0.01 μF
0.01 μF
0.01 μF
4.7 K to 10 KΩ
V CC ,R
V CC ,R
100 Ω
SFP MODULE
50 Ω
50 Ω
AMPLIFICATION
QUANTIZATION
LASER DRIVER
EEPROM
CIRCUITRY
& SAFETY
&