參數(shù)資料
型號(hào)： SPBD-1250B4M1RDT
元件分類： 光收發(fā)
英文描述： FIBER OPTIC TRANSCEIVER, 1480-1500nm, 1250Mbps(Tx), 1250Mbps(Rx), SURFACE MOUNT, LC CONNECTOR
封裝： ROHS COMPLIANT PACKAGE
文件頁(yè)數(shù)： 4/14頁(yè)
文件大?。?/td> 338K
代理商： SPBD-1250B4M1RDT
SPBD-1250B4M1RD(T)
DELTA ELECTRONICS, INC.
12
Revision: S0
06/01/2009
www.deltaww.com
Calibration Constants (2 Wire Address A2h)
Address
# Bytes
Name
HEX
Description
56-59
4
Rx_PWR (4)
00 00 00 00
Rx_PWR (4) is set to zero for “internally calibrated” devices.
60-63
4
Rx_PWR (3)
00 00 00 00
Rx_PWR (3) is set to zero for “internally calibrated” devices.
64-67
4
Rx_PWR (2)
00 00 00 00
Rx_PWR (2) is set to zero for “internally calibrated” devices.
68-71
4
Rx_PWR (1)
3F 80 00 00
Rx_PWR (1) is set to 1 for “internally calibrated” devices.
72-75
4
Rx_PWR (0)
00 00 00 00
Rx_PWR (0) is set to zero for “internally calibrated” devices.
76-77
2
Tx_I (Slope)
01 00
Tx_I (Slope) is set to 1 for “internally calibrated” devices.
78-79
2
Tx_I (Offset)
00 00
Tx_I (Offset) is set to zero for “internally calibrated” devices.
80-81
2
Tx_PWR (Slope)
01 00
Tx_PWR (Slope) is set to 1 for “internally calibrated”
devices.
82-83
2
Tx_PWR
(Offset)
00 00
Tx_PWR (Offset) is set to zero for “internally calibrated”
devices.
84-85
2
T (Slope)
01 00
T (Slope) is set to 1 for “internally calibrated” devices.
86-87
2
T (Offset)
00 00
T (Offset) is set to zero for “internally calibrated” devices.
88-89
2
V (Slope)
01 00
V (Slope) is set to 1 for “internally calibrated” devices.
90-91
2
V (Offset)
00 00
V (Offset) is set to zero for “internally calibrated” devices.
92-94
3
Reserved
00 00 00
Reserved
95
1
Checksum
XX
Byte 95 contains the low order 8 bits of the sum of bytes 0 –
94.
A/D Value (2 Wire Address A2h)
Address
# Bytes
Name
Description
96-97
2
Temperature (MSB, LSB)
Internally measured module temperature
98-99
2
Supply Voltage (MSB, LSB)
Internally measured supply voltage in module
100-101
2
Tx Bias Current (MSB, LSB)
Internally measured Tx Bias current
102-103
2
Tx Optical Power (MSB, LSB)
Measured Tx output power
104-105
2
Rx Received Power (MSB, LSB)
Measured Rx input power
106-109
4
Reserved
Notes:Temperature (Signed twos complement value)
A2h Byte 96 (Temperature MSB)
A2h Byte 97 (Temperature LSB)
S
2
6
2
5
2
4
2
3
2
1
2
0
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
Supply Voltage, Tx Bias Current, Tx Optical Power, Rx Received Power (Unsigned values)
A2h Byte 98 (Vcc MSB)
A2h Byte 99 (Vcc LSB)
A2h Byte 100 (TX Bias MSB)
A2h Byte 101 (TX Bias LSB)
A2h Byte 102 (TX Power MSB)
A2h Byte 103 (TX Power LSB)
A2h Byte 104 (RX Power MSB)
A2h Byte 105 (RX Power LSB)
2
15
2
14
2
13
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
1
2
0
The digital value conversions are updated every 13ms (nominal) or 20ms (max) in rotation. After getting digital value,
each measurement could be obtained by multiplying digital value by corresponding LSB value:
Temperature = Temp (Digital Value)
LSBTemp = Temp (Digital Value)
1
256; when Temperature<128
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