Datasheet.kr   

EL6279CU PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EL6279CU
기능 4-Ch Laser Diode Driver Oscillator
제조업체 Elantec Semiconductor
로고 Elantec Semiconductor 로고 



전체 2 페이지

		

No Preview Available !

EL6279CU 데이터시트, 핀배열, 회로
EL6279C - Product Brief
4-Ch Laser Diode Driver + Oscillator
Features
Ultra-Small Package Outline
Current-controlled output current
source to 100 mA per channel,
requiring one external set resistor
per channel
Auto Oscillator On-Off with
OUTEN Signals
Rise time = 3.0 ns
Fall time = 3.5 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%)
Current amplification = 100
Disable feature for power-up
protection and power savings
CMOS control signals
Applications
CD-RW applications
Writable optical drives
Laser diode current switching
Ordering Information
Part No.
EL6279CU
Temp. Range
0°C to +70°C
Package
QSOP-16
Outline #
MDP0040
General Description
The EL6279C is a four channel laser diode current amplifier that pro-
vides controlled current to a grounded laser diode. The four amplifiers
can provide up to 100 mA per channel of DC or pulsed current. Chan-
nels 2, 3, and 4 should be used as the write channels, with switching
speeds of approximately three 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 perfor-
mance. The level of the output current is set by an analog voltage
applied to an external resistor which converts the voltage into a current
at the IIN pin (virtually ground). The current seen at this pin is then
amplified by 100X to become a current source at pin IOUT.
Output current pulses are enabled when an Lsignal is applied to the
OUTEN pin. No output current flows when OUTEN is H, and addi-
tional laser diode protection is provided since the OUTEN input will
float high when open. Complete IOUT shutoff is also achieved by hold-
ing the ENABLE pin low, which will override the OUTEN control
pins.
An on-chip 500 MHz oscillator is provided to allow output current
modulation when in read mode. The oscillator is enabled when the
OSCEN pin is held high. If any of channels 2, 3, or 4 are active, the
oscillator is switched off. Complete control of amplitude and fre-
quency is set by two external resistors connected to ground at pins
RFREQ and RAMP (see graphs in this data sheet for further
explanation).
The external IIN resistors allow the user to accurately and indepen-
dently 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
IINR
IIN2
RFREQ
IIN3
IIN4
OUTEN2
OUTEN3
OUTEN4
1
2
3
4
5
6
7
8
16 VCC
15 VCC
14 IOUT
13 GND
12 RAMP
11 ENABLE
10 OSCEN
9 VCC
© 1998 Élantec, Inc.






구       성총 2 페이지
다운로드[ EL6279CU.PDF 데이터시트 ]
구매 문의
일반 IC 문의 : 샘플 및 소량 구매
-----------------------------------------------------------------------

전력 반도체 판매 ( IGBT, TR 모듈, SCR, 다이오드 모듈 )

상호 : 아이지 인터내셔날

사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ]



링크공유

링크 :

관련 데이터시트

부품번호상세설명 및 기능제조사
EL6279C

4-Ch Laser Diode Driver Oscillator

Elantec Semiconductor
Elantec Semiconductor
EL6279CU

4-Ch Laser Diode Driver Oscillator

Elantec Semiconductor
Elantec Semiconductor

DataSheet.kr    |   2020   |  연락처   |  링크모음   |   검색  |   사이트맵