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參數(shù)資料
| 型號： | TQ8219 |
| 英文描述： | Optoelectronic |
| 中文描述： | 光電 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 385K |
| 代理商： | TQ8219 |
6
TQ8218/TQ8219
PRELIMINARY DATA SHEET
Rev 0.0.A
Signal
DOUT
NDOUT
(Note 1)
Symbol
Imod_18 TQ8218 Modulation current into nominal load
Imod_19 TQ8219 Modulation current into nominal load
Tpw
Output data pulse width
Trise
Output data rise time (20% - 80%)
Tfall
Output data fall time (20% - 80%)
Jpp
Output data peak-peak jitter (Note 3)
V
mean_max
Output data typical pk-pk for high output applications;
Vlevel =tbdV, Vdrive = +3.3 V (Note 2)
V
mean_min
Output data typical pk-pk for low output applications;
Vlevel = tbdV, Vdrive = +3.3 V (Note 2)
X
ingmin
Min. data crossing lvl. adjustment range with VSYMX at -3.7V
X
ingmax
Max. data crossing lvl adjustment range with VSYMX at -2.7V
DXing
Absolute variation in output data crossing level over full
VLEVEL operating range
%over
Overshoot
%under
Undershoot
%ripple
Ripple
RATE
NRZ data rate
1.Refer to Figure 2. All specifications for output data apply under the following conditions:
Output Data Pattern:
DOUT and NDOUT termination:
Description
Min
15
30
95
65
65
Nom
Max
80
160
105
130
130
Units
mA
mA
%
ps
ps
ps
V
100
-
-
TBD
4.0
3.85
0.75
V
20
60
-5
-
-
-
40
80
+5
%
%
%
-
-
-
3125
-
-
-
10
10
10
%
%
%
Mbs
Notes:
2
23
-1 PRBS, 2.48832 Gbit/s
TQ8218: 50 Ohms to GND
TQ8219: 25 Ohms to +3.3V
>-20 dB, 0 to 1 GHz
>-10 dB, 1 to 3 GHz
>-6 dB, 3 to 5 GHz
over specified operating range
adjusted to give 50% data crossing
Termination network return loss:
(TQ8218 only)
Vlevel:
VSYMX:
2.This specification applies to the Vmean measurement shown in Figure 2. Vlevel must be adjusted to the specified
level and VSYMX must be adjusted for optimum eye crossing level before making data eye measurements.
3. Peak to Peak jitter is defined as the difference between the measured jitter on the device and the test system jitter.
Table 7. 2.5Gb/s High Speed Output Signal Specifications
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