HFCT-721XPD Avago Technologies US Inc., HFCT-721XPD Datasheet - Page 4

• Manufacturer Part Number: HFCT-721XPD
• Description: Fiber Optic Transceiver,Module
• Manufacturer: Avago Technologies US Inc.

Specifications of HFCT-721XPD

• Data Rate: 10.52Gbps
• Wavelength: 1310nm
• Applications: General Purpose
• Voltage - Supply: 3.135 V ~ 3.465 V
• Connector Type: LC Duplex
• Mounting Type: Panel Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 1. Electrical Pin Definitions
Notes:
1. Module ground pins Gnd are isolated from the module case and chassis ground within the module.
2. Open Collector should be pulled up with 4.7 K-10 Kohms to a voltage between 3.15 V and 3.6 V on the host board.
3. RefCLK+/- are internally terminated (50Ω)

Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Name
GND
V
Mod-Desel
Interrupt
TX_DIS
V
GND
V
V
SCL
SDA
Mod_Abs
Mod_NR
RX_LOS
GND
GND
RD-
RD+
GND
V
P_Down/RST
V
GND
RefCLK+
RefCLK-
GND
GND
TD-
TD+
GND
EE
CC
CC
CC
CC
CC
5
5
3
3
2
2
Logic
LVTTL-I
LVTTL-O
LVTTL-I
LVTTL-I
LVTTL-I/O
LVTTL-O
LVTTL-O
LVTTL-O
CML-O
CML-O
LVTTL-I
PECL-I
PECL-I
CML-I
CML-I
Function/Description
Module Ground
-5.2 V power supply. Not internally connected.
Module De-select; When held low allows the module to respond to 2-wire
Serial interface commands
Interrupt; Indicates presence of an important condition which can be readover
the serial 2-wire interface
Transmitter Disable; Transmitter Laser Source Turned Off
5 V power supply. Not internally connected.
Module Ground
+3.3 V Power Supply
+3.3 V Power Supply
Two Wire Interface Clock
Two Wire Interface Data Line
LVTTL-O Mod_Abs Indicates Module is not present. Grounded in the Module
Module Not Ready; Indicating Module Operational Fault
Receiver Loss Of Signal Indicator
Module Ground
Module Ground
Receiver Inverted Data Output
Receiver Non-Inverted Data Output
Module Ground
+1.8 V Power Supply. Not internally connected.
Power down: When high, the module is put into a lower power mode. Serial
interface is functional in the low power mode. Reset: The falling edge initiates
a complete reset of the module including the serial Interface, equivalent to a
power cycle.
+1.8 V Power Supply. Not internally connected.
Module Ground
Reference Clock Non-Inverted Input, ac coupled on the host board
Reference Clock Inverted Input, ac coupled on the host board
Module Ground
Module Ground
Transmitter Inverted Data Input
Transmitter Non-Inverted Data Input
Module Ground
Notes
1
2
1
2
2
2
2
2
1
1
1
1
3
3
1, 3
1
1