Motor de Búsqueda de Datasheet de Componentes Electrónicos
Selected language     Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

AD96606 Datasheet(PDF) 5 Page - Analog Devices

No. de Pieza. AD96606
Descripción  200 MHz Laser Diode Driver with Light Power Control
Descarga  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo 

AD96606 Datasheet(HTML) 5 Page - Analog Devices

 
Zoom Inzoom in Zoom Outzoom out
 5 / 12 page
background image
REV. 0
–5–
Typical Performance Characteristics–AD9660
2ns
20mV
6.25mV
–193.8mV
50
50
–120V
ML64116R
OUTPUT
TEK 11802
O'SCOPE
AD9660
ANTEL
ARS1
PHOTO DETECTOR
Figure 1. Driving ML64116R Laser @ 30 mW
ROFFSET – kΩ
35
30
0
025
510
15
20
25
10
5
15
20
Figure 2. IOFFSET vs. ROFFSET
*
DELAY
VOLT
REF
OUTPUT
LASER
DIODE
PHOTO
DETECTOR
WRITE LOOP
WRITE HOLD
WRITE PULSE
WRITE CAL
RGAIN
BIAS LEVEL
BIAS CAL
BIAS HOLD
OFFSET PULSE
ANALOG
50
VREF
VREF
5pF
ANALOG
TTL
TTL
TTL
VREFOUT
4.0V
1:10
V:1
TZA
2* IMONITOR
1.85:1
IMODULATION
CGAIN
POWER
MONITOR
DISABLE
DISABLE
CIRCUIT
WRITE LEVEL
GAIN
IOUT
IMONITOR
SENSE IN
+VS
V:1
ANALOG
1:10
VREF
TTL
1:10
IBIAS
IOFFSET
1.4V
OFFSET CURRENT
SET
BIAS LOOP
AD9660
* 10ns DELAY ON RISING
EDGE; 0ns ON FALLING
TTL
5pF
Figure 3. Functional Block Diagram
THEORY OF OPERATION
The AD9660 combines a very fast output current switch with
onboard analog light power control loops to provide the user
with a complete laser diode driver solution. The block diagram
illustrates the key internal functions. The control loops of the
AD9660, the bias loop and the write loop, adjust the output
current level, IOUT, so that the photo diode feedback current,
IMONITOR, out of SENSE IN is proportional to the analog input
voltage at BIAS LEVEL or WRITE LEVEL. Since the monitor
current is proportional to the laser diode light power, the loops
effectively control laser power to a level proportional to the ana-
log inputs. The control loops should be periodically calibrated
independently (see Choosing CBIAS HOLD and CWRITE HOLD).
The offset current generator produces an open loop output cur-
rent, IOFFSET. Its level is controlled by an external set resistor or
a current out DAC (see Figure 2). While IOFFSET is not cali-
brated as the currents from the bias and write loops are, it can
be very versatile (see Offset Current below).


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 


Datasheet Download




Enlace URL




Privacy Policy
ALLDATASHEET.ES
Does ALLDATASHEET help your business so far?  [ DONATE ]  

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Favorito   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn