HFCT5745P Avago Technologies US Inc., HFCT5745P Datasheet - Page 8

• Manufacturer Part Number: HFCT5745P
• Manufacturer: Avago Technologies US Inc.

Specifications of HFCT5745P

• Optical Fiber Type: TX/RX
• Data Transfer Rate: 2700Mbps
• Optical Rise Time: 0.15ns
• Optical Fall Time: 0.2ns
• Operating Temperature Classification: Commercial
• Peak Wavelength: 1360/1580nm
• 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: Not Compliant

Table 4. EEPROM Serial ID Memory Contents - Address A2h
Notes:
1. Temperature (Temp) is decoded as a 16 bit signed twos compliment integer in increments of 1/256 °C.
2. Supply voltage (V
3. Laser bias current (Tx Bias) is decoded as a 16 bit unsigned integer in increments of 2 µA.
4. Transmitted average optical power (Tx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 µW.
5. Received average optical power (Rx Pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 µW.
6. Bytes 55-94 are not intended from use with HFCT-5745xx, but have been set to default values per SFF-8472.
7. Bytes 95 is a checksum calculated (per SFF-8472) and stored prior to product shipment.
8. Byte 127 accepts a write but performs no action (reserved legacy byte).
9. Bytes 128-247 are write enabled (customer writable).
10. Byte 255 bits 2 and 3 control laser margining (per Table 7) when an enabling password is entered into bytes 123-126.
8
Byte #
Decimal
0
1
6
10
11
12
13
14
15
16
17
18
19
2
3
4
5
7
8
9
20
21
22
23
24
25
Notes
Temp H Alarm MSB
Temp H Alarm LSB
Temp L Alarm MSB
Temp L Alarm LSB
Temp H Warning MSB
Temp H Warning LSB
Temp L Warning MSB
Temp L Warning LSB
V
V
V
V
V
V
V
V
Tx Bias H Alarm MSB
Tx Bias H Alarm LSB
Tx Bias L Alarm MSB
Tx Bias L Alarm LSB
Tx Bias H Warning MSB
Tx Bias H Warning LSB
Tx Bias L Warning MSB
Tx Bias L Warning LSB
Tx Pwr H Alarm MSB
Tx Pwr H Alarm LSB
CC
CC
CC
CC
CC
CC
CC
CC
H Alarm MSB
H Alarm LSB
L Alarm MSB
L Alarm LSB
H Warning MSB
H Warning LSB
L Warning MSB
L Warning LSB
CC)
is decoded as a 16 bit unsigned integer in increments of 100 µV.
2
2
2
2
1
2
1
2
1
2
1
2
4
3
3
1
1
3
4
1
3
1
3
3
3
3
Byte #
Decimal
26
27
28
29
30
31
32
33
34
35
36
37
38
39
56-94
95
96
97
98
99
100
101
102
103
40-55
Notes
Rx Pwr H Alarm MSB
Rx Pwr H Alarm LSB
Rx Pwr L Alarm MSB
Rx Pwr L Alarm LSB
Rx Pwr H Warning MSB
Rx Pwr H Warning LSB
Rx Pwr L Warning MSB
Rx Pwr L Warning LSB
Reserved
External Calibration
Constants
Checksum for Bytes 0-94
Real Time Temperature
MSB
Real Time Temperature LSB
Real Time Vcc MSB
Real Time Vcc LSB
Real Time Tx Bias MSB
Real Time Tx Bias LSB
Real Time Tx Power MSB
Real Time Tx Power LSB
Tx Pwr L Alarm MSB
Tx Pwr L Alarm LSB
Tx Pwr H Warning MSB
Tx Pwr H Warning LSB
Tx Pwr L Warning MSB
Tx Pwr L Warning LSB
1
6
2
2
4
5
5
4
5
5
3
4
5
4
5
4
3
5
4
5
4
7
4
1
Byte #
Decimal
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120-122
123
124
125
126
127
128-247
248-254
255
Notes
Real Time Rx P
Real Time Rx P
Reserved
Reserved
Reserved
Reserved
Status/Control - see Table 7
Reserved
Flag Bits - see Table 9
Flag Bit - see Table 9
Reserved
Reserved
Flag Bits - see Table 9
Flag Bits - see Table 9
Reserved
Reserved
Reserved
Reserved
Customer Writable
Vendor Specific
8
AV
AV
MSB
LSB
9
5
5