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參數(shù)資料
| 型號： | HFBR-7924 |
| 元件分類： | 光收發(fā) |
| 英文描述： | FIBER OPTIC TRANSCEIVER PARALLEL INTERFACE, 830-860nm, 2700Mbps(Tx), 2700Mbps(Rx), PANEL MOUNT |
| 文件頁數(shù)： | 16/18頁 |
| 文件大?。?/td> | 492K |
| 代理商： | HFBR-7924 |
7
Transmitter Electrical Characteristics
(Over recommended operating conditions: Tc= 0C to +80C, Vcc=3.3V + 5%)
Parameter
Symbol
Minimum Typical
Maximum Unit
Reference
Differential Input Impedance
Zin
80
100
120
W
6, Figure 9
FAULT* Assert time
TOFF
100
s
Figure 13
RESET* Assert time
TOFF
7.5
s
Figure 14
RESET* De-assert time
TON
18
ms
Figure 14
Transmit Enable (TX_EN) Assert time
TON
18
ms
Figure 15
Transmit Enable (TX_EN) De-assert time
TOFF
7.5
s
Figure 15
Transmit Disable (TX_DIS) Assert time
TOFF
7.5
s
Figure 15
Transmit Disable (TX_DIS) De-assert time
TON
18
ms
Figure 15
Power-On Initiation Time
21
ms
Figure 17
Control I/Os
TX _DIS, TX_EN,
TX_FAULT*,
TX_RESET*
Input Current High
| IIH |0.5
mA
2.0 V < VIH < VCC
Input Current Low
| IIL |0.5
mA
VEE < VIH < 0.8 V
Output Voltage Low
VOL
VEE
0.4
V
IOL = 4.0 mA
Output Voltage High
VOH
2.4
VCC
VIOH = -0.5 mA
Parameter
Symbol
Minimum Typical
Maximum Unit
Reference
Output Optical Power
50/125 m, Fiber NA = 0.2
POUT
-8.0
-4.5
-2.0
dBm avg.
7
Extinction Ratio
ER
6
7.5
dB
8
Center Wavelength
l
C
830
850
860
nm
Spectral Width - rms
s
0.85
nm rms
Rise, Fall Time
tr, tf
60
150
ps
9
Inter-channel Skew
50
100
ps
10
Relative Intensity Noise
RIN
-127
-121
dB/Hz
Jitter Contribution
Deterministic
DJ
20
50
psp-p
11
Total
TJ
45
120
psp-p
12
Notes:
6. Differential impedance is measured between D
IN+ and DIN- over the range 4 MHz to 2 GHz.
7. The specified optical output power, measured at the output of a 2 meter test cable, will be compliant with IEC 60825-1 Amendment 2,
Class 1M Accessible Emission Limits, AEL Regulatory Compliance section.
8. Extinction Ratio is defined as the ratio of the average output optical power of the transmitter in the high (“1”) state to the low (“0”) state
and is expressed in decibels (dB) by the relationship 10log(Phigh avg/Plow avg). The transmitter is driven with a 550 MBd, 101010 pattern.
9. These are unfiltered 20% - 80% values measured with a 550 MBd 101010 pattern.
10. Inter-channel Skew is defined for the condition of equal amplitude, zero ps skew input signals.
11. Deterministic Jitter (DJ) is defined as the combination of Duty Cycle Distortion (Pulse-Width Distortion) and Data Dependent Jitter.
Deterministic Jitter is measured at the 50% signal threshold level using a 2500 MBd Pseudo Random Bit Sequence of length 223-1 (PRBS-
23), or equivalent, test pattern with zero skew between the differential data input signals.
12. Total Jitter (TJ) includes Deterministic Jitter and Random Jitter (RJ). Total Jitter is specified at a BER of 10-12 for the same 2.5 GBd test
pattern as for DJ and is measured with all channels operating.
Transmitter Optical Characteristics
(Over recommended operating conditions: Tc= 0C to +80C, Vcc=3.3V + 5%)
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