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| 型號： | TZA3019AVH |
| 英文描述： | TRANSIL |
| 中文描述： | 特定應(yīng)用功放|雙| LLCC | 32腳|塑料 |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 138K |
| 代理商： | TZA3019AVH |
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2003 Apr 02
16
Philips Semiconductors
Product specification
30 Mbits/s up to 3.2 Gbits/s
A-rate
TM
laser drivers
TZA3011A; TZA3011B
handbook, full pagewidth
MGT892
IAVR (
μ
A)
IER (
μ
A)
Iav(MON)
(
μ
A)
Iav(MON) = 1580
5.26
×
IAVR
μ
A
1500
ER
ER = 20
IER
2
μ
A
30
0
295
30
15
15
5
10
Fig.5 Average monitor current and extinction ratio as a function of I
AVR
and I
ER
.
12.1.3
D
UAL
-
LOOP CONTROL
The dual-loop control measures the monitor current (I
MON
)
corresponding with an optical ‘one’ level and the I
MON
corresponding with the optical ‘zero’ level. The measured
I
MON(one)
and I
MON(zero)
are compared with the average
monitor current setting and the extinction ratio setting
according to:
The dual-loop controls the bias and the modulation current
for obtaining the I
MON(one)
and I
MON(zero)
current levels
which correspond with the programmed AVR and ER
settings.
Performance of the dual-loop for high data-rate is linked to
the quality of the incoming IMON signal: a high
performance interconnection between monitor photodiode
and MON input is requested for maximum data rate
applications (2.7 Gbits/s).
The operational area of the dual-loop and the control area
of the monitor input current must respect the following
equations:
Stability of ER and AVR settings are guaranteed over a
range of temperature and supply voltage variations.
I
av(MON)
I
-------------------------2
I
+
=
ER
I
MON(zero)
I
=
50
μ
A
I
MON(zero)
500
μ
A
<
<
250
μ
A
I
MON(one)
2500
μ
A
<
<
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| TZA3019BHT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
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| TZA3019CHT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
| TZA3019CV | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
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