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參數(shù)資料
| 型號： | T0820 |
| 廠商： | Atmel Corp. |
| 英文描述： | 4 CHANNEL LASER DRIVER WITH RF OSCILLATOR |
| 中文描述： | 4通道激光驅(qū)動器，帶有射頻振蕩器 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 187K |
| 代理商： | T0820 |
6
T0820
4506F–DVD–09/04
Electrical Characteristics: Laser Current Amplifier Output AC Performance
V
CC
= +5 V, IOUT = 40 mA DC with 40 mA pulse, T
amb
= 25°C, unless otherwise specified
No.
Parameters
Test Conditions
5
Laser Current Amplifier Output AC Performance
Pin
Symbol
Min.
Typ.
Max.
Unit
Type*
5.1
Write rise time
I
OUT
= 40 mA (read) +
40 mA (10% - 90%)
(1)
14
t
RISE
1.0
3.0
ns
C
5.2
Write fall time
I
OUT
= 40 mA (read) +
40 mA (10% - 90%)
(1)
14
t
FALL
1.1
3.0
ns
C
5.3
Output current
overshoot
I
OUT
= 40 mA (read) +
40 mA
(1)
14
OS
5
%
C
5.4
I
OUT
ON prop delay
NE 50% High-Low to
I
OUT
at 50% of final
value
14
t
ON
2.0
ns
C
5.5
I
OUT
OFF prop delay
NE 50% Low-High to
I
OUT
at 50% of final
value
14
t
OFF
2.0
ns
C
5.6
Disable time
ENABLE 50% High-
Low to I
OUT
at 50% of
final value
14
t
DIS
10
ns
C
5.7
Enable time
ENABLE 50% Low-
High to I
OUT
at 50% of
final value
14
t
EN
50
ns
C
5.10
Amplifier bandwidth
I
OUT
= 50 mA, all
channels, -3 dB value
14
BW
LCA
20
MHz
C
6
Oscillator
6.1
Oscillator frequency
RF = 7.5 k
RS = 560
RF = 7.5 k
RS = 560
14
F
OSC
255
300
350
MHz
A
6.2
Oscillator
temperature
coefficient
14
TC
OSC
-150
ppm/
°
C
C
6.3
Disable time oscillator
ENOSC 50% Low-
High to I
OUT
at 50% of
final value
14
T
DISO
4
ns
C
6.4
Enable time oscillator
ENOSC 50% High-
Low to I
OUT
at 50% of
final value
RF = 7.5 k
RS = 560
14
T
ENO
2
ns
C
6.5
Oscillator swing
14
S
OSC
35
55
mApp
A
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note:
1. Load resistor at IOUT 10
, measurement with a 50-
oscilloscope and a 39-
series resistor
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