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參數(shù)資料
| 型號(hào)： | IBM42F12LNNAA30 |
| 廠商： | IBM Microeletronics |
| 英文描述： | Gigabit Ethernet/Fibre Channel Small Form Factor PTH Transceiver(吉（10^ 9 G)位以太網(wǎng)/光纖通道PTH收發(fā)器) |
| 中文描述： | 千兆以太網(wǎng)/光纖通道纖巧甲狀旁腺收發(fā)器（吉（10 ^ 9政）位以太網(wǎng)/光纖通道甲狀旁腺收發(fā)器） |
| 文件頁數(shù)： | 11/24頁 |
| 文件大?。?/td> | 212K |
| 代理商： | IBM42F12LNNAA30 |
IBM42G12SNNAA30 IBM42G10SNNAA30
IBM42G12LNNAA30 IBM42G10LNNAA30 IBM42F12LNNAA30 IBM42F10LNNAA30
Gigabit Ethernet/Fibre Channel Small Form Factor PTH Transceiver
IBM42F12SNNAA30 IBM42F10SNNAA30
..
08/15/00
Page 11 of 23
Transmitter Specifications
Symbol
Parameter
Min
Typical
Max.
Unit
Notes
λ
C
Spectral Center Wavelength
830
860
nm
λ
Spectral Width
0.85
nm (rms)
PT
Launched Optical Power
-9.5
-4.0
dBm (avg)
1
T
rise
/T
fall
Optical Rise/Fall Time
260
ps
2
Optical Extinction Ratio (1.25Gb/s)
9
dB
3
OMA
Optical Modulation Amplitude (1.0625Gb/s)
156
μ
W (pk-pk)
4
RIN
12
Relative Intensity Noise
-117
dB/Hz
5
Eye Opening
0.57
UI
6
DJ
Deterministic Jitter (1.0625Gb/s)
0.20
UI
7
CPR
Coupled Power Ratio
9
dB
8
1. Launched optical power is measured at the end of a two meter section of a 50/125
μ
m fiber (N.A.=0.20). The maximum and mini-
mum of the allowed range of average transmitter power coupled into the fiber are worst case values to account for manufacturing
variances, drift due to temperature variations, and aging effects. The minimum launched optical power specified assumes an infi-
nite extinction ratio at the minimum specified OMA.
2. Optical transition time is the time interval required for the rising or falling edge of an optical pulse to transition between the 20% and
80% amplitudes relative to the logical 1 and 0 levels. This is measured through a 4th order Bessel -Thompson filter with 0.75 * Data
Rate 3-dB bandwidth and corrected to the full bandwidth value.
3. Extinction Ratio is the ratio of the average optical power (in dB) in a logical level one to the average optical power in a logical level
zero measured under fully modulated conditions with a pattern of five 1s followed by five 0s, in the presence of worst case reflec-
tions.
4. Optical Modulation Amplitude (OMA) is defined as the difference in optical power between a logical level one and a logical level
zero. The OMA is defined in terms of average optical power (P
AVG
in
μ
W) and extinction ratio (ER) as given by OMA=2P
AVG
((ER-
1)/(ER+1)). In this expression, the extinction ratio, defined as the ratio of the average optical power (in
μ
W) in a logic level one to
the average optical power in a logic level zero measured under fully modulated conditions in the presence of worst case reflections,
must be the absolute (unitless linear) ratio and not expressed in dB. At 1.0625Gb/s, the specified OMA is equivalent to an average
power of -9 dBm at an extinction ratio of 9 dB.
5. RIN12 is the laser noise, integrated over a specified bandwidth, measured relative to average optical power with 12dB return loss.
See Ref[1], Annex A.
6. Eye opening is the portion of the bit time where the bit error rate (BER)
≤
10
-12
.
7. Deterministic Jitter is defined in Ref [1][2].
8. Coupled Power Ratio is the ratio of the average power coupled into a multimode fiber to the average power coupled into a single
mode fiber. This measurement is defined in EIA/TIA-526-14A.
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