DataSheet.es    


PDF EL6259 Data sheet ( Hoja de datos )

Número de pieza EL6259
Descripción Low Noise 4-Channel Laser Diode Driver + Oscillator
Fabricantes Elantec Semiconductor 
Logotipo Elantec Semiconductor Logotipo



Hay una vista previa y un enlace de descarga de EL6259 (archivo pdf) en la parte inferior de esta página.


Total 2 Páginas

No Preview Available ! EL6259 Hoja de datos, Descripción, Manual

EL6259C - Product Brief
Low Noise 4-Channel Laser Diode Driver + Oscillator
Features
Low output noise = 4.0nA/rt-Hz
High-performance laser diode
driver
Pin compatible with EL6257
Voltage-controlled output current
source to 150 mA per channel,
requiring one external set resistor
per channel
Current-controlled output current
source to 150 mA per channel
Rise time = 1.0 ns
Fall time = 1.1 ns
On chip oscillator with frequency
and amplitude control by use of
external resistors to ground
Oscillator to 500 MHz
Oscillator to 100 mA pk/pk
Single +5V supply (±10%)
Disable feature for power-up
protection and power savings
TTL/CMOS control signals
Applications
DVD-RAM high speed drives
CD-RW applications
Writable optical drives
Laser diode current switching
Ordering Information
Part No
EL6259CU
Temp. Range
0°C to +70°C
Package
QSOP-24
Outline #
MDP0040
Complete Product Specifications
Elantec Technical Support:
North America: 1-888-352-6832 X 311
Asia: +85-45-682-5820
Europe: +44-18-977-6020
©2000 Elantec Semiconductor, Inc.
General Description
The EL6259C is a low noise four channel laser diode current amplifier
that provides controlled current to a grounded laser diode. The four
amplifiers can provide up to 150 mA per channel of DC or pulsed cur-
rent. Channels 2, 3, and 4 must be used as the write channels, with
switching speeds of approximately one nanosecond rise/fall time. All
four channels are summed together at the IOUT output, allowing the
user to create multilevel waveforms in order to optimize laser diode
performance. The level of the output current is set by an analog volt-
age applied to an external resistor which converts the voltage into a
current at the IIN pin. The current seen at this pin is then amplified by
100X to become a current source at pin IOUT.
An on-chip 500 MHz oscillator is provided to allow current modula-
tion when in the read mode. This is turned on when the EOSC pin is
held high (floating not recommended). Complete control of amplitude
and frequency is set by two external resistors connected to ground at
pins RFREQ and RAMP (see graphs in this data sheet for further
explanation).
Output current pulses are enabled when an Lsignal is applied to the
OE pin. No output current flows when OE is H, and additional laser
diode protection is provided since the OE input will float high when
open. Complete IOUT shut-off is also achieved by holding the CE pin
low, which will override the OE control pins.
The external resistors allow the user to accurately and independently
set each amplifier transconductance by applying a voltage to each
resistor, without restriction on the voltage range, thus ensuring broad
voltage DAC compatibility. Alternatively, the IIN pin can be biased
from a current DAC or other current source.
Connection Diagram
GND 1
IINR 2
GND 3
IIN2 4
RFREQ 5
IIN3 6
IIN4 7
OER 8
OE2 9
OE3 10
OE4 11
GND 12
24 GND
23 VCC
22 VCC
21 IOUT
20 IOUT
19 GND
18 RAMP
17 CE
16 EOSC
15 VCC
14 VCC
13 GND

1 page





PáginasTotal 2 Páginas
PDF Descargar[ Datasheet EL6259.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
EL6250CSplit Supply Laser Driver and OscillatorElantec Semiconductor
Elantec Semiconductor
EL6250CUSplit Supply Laser Driver and OscillatorElantec Semiconductor
Elantec Semiconductor
EL6252C2-Channel laser diode Driver + OscillatorElantec Semiconductor
Elantec Semiconductor
EL6252CY2-Channel laser diode Driver + OscillatorElantec Semiconductor
Elantec Semiconductor

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar