|
|
|
부품번호 | ATLD201V1 기능 |
|
|
기능 | Dual Mode 30MHz Modulation Laser Controller | ||
제조업체 | AT | ||
로고 | |||
Analog Technologies, Inc.
ATLD201V1
Dual Mode 30MHz Modulation Laser Controller
Specifications
Drive current range:
www.datasheet4u.com
Current output accuracy:
0 to 120mA
±2%
Current ripple noise:
≤0.01% (RMS) and <0.1% (peak-to-peak) DC to 2KHz.
Current adjustable limit:
0 to 120mA
Driving mode:
Constant current and constant power
Temperature coefficient:
≤ ±100ppm/°C for power mode, ≤ ±250ppm/°C for current mode.
Operating temperature:
−10°C to 65°C
Storage temperature:
−40°C to 85°C
PD feedback current:
0.02mA to 1.5mA, 0.3mA typical
Peak power set voltage:
0V to 2V
Peak current set voltage:
0V to 2V
Modulation input voltage:
0V to 2V (open circuit voltage)*
Modulation input impedance:
50Ω
Modulation bandwidth:
DC to 30MHz (±1dB)
Power supply voltage:
5V ± 10%
Power supply current:
<140mA
Laser diode type supported:
Case = laser diode cathode and photo diode anode
Packaging:
25mm x 20mm PCB
* The output DC and AC impedance of the modulation signal source should be 50Ω.
Pin Descriptions (See Figure 1 and 2 for laser controller ATLD201V1 views)
J1: Signal Source Input. The internal conductor of the RG174 coaxial cable is for connecting to the signal
source, the cable shield is for connecting the ground.
J2: Power Supply Input.
Pin 1, GND, power ground.
Pin2, VPS, 5V power input.
J3: Monitor and Programming Signals.
Pin 1, LIO, laser current output, analog output.
Pin 2, 2VR, voltage reference, 2V, analog output.
550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089, U. S. A. Tel.: (408) 747-9760, Fax: (408) 747-9770, Web: www.analogtechnologies.com
© Copyright 2000 – 2004, Analog Technologies, Inc. All Rights Reserved.
Updated: 3/24/2004
1
Analog Technologies, Inc.
ATLD201V1
Modulation
Input
www.datasheet4u.com
J1
50 Ω
J2
2 5V
1 0V
2V
Laser Control
Circuitry
Laser Monitor
Circuitry
Laser
J3
LIO
1 2VR
2
3
LIS
GND
4 LPGD
5 SDN
6
To ADC
Voltage reference for DAC
To POT or DAC
Signal ground
To Micro-processor
To Micro-processor
or a switch to ground
Figure 3. Internal Circuits and External Connections for ATLD201V1
5. Set up and Connect the Modulation Signal Source. The modulation signal has to be between 0V to
2V and the output DC and AC impedance has to be 50Ω. Set up the modulation signal to the proper
value first and then connect to J1 of ATLD201V1. When the input signal is 0V, it will generate a 1V
voltage at the input pin (J1) and the output optical power is 0; when the input signal is at 2V, it will
generate a 2V voltage at the input pin and the output optical power is at its maximum value. Leaving J1
unconnected will result in the input pin voltage to be at 2V and the output optical power to be at its
maximum value. See Figure 3 for the internal connection of J1.
6. Monitor the laser current. The ATLD201V1 comes with a current monitor circuit. Use voltage meter
or a ADC to monitor the laser current by measuring the voltage at LIO (J3 pin 1). The formula is: LI =
LIO/20, LI is the laser current, LIO is the voltage at LIO (J2 pin 1). For example, when LIO is 1V, LI
= 1/20 = 0.05A = 50mA.
7. Monitor the control mode. The ATLD201V1 has two control modes: constant current and constant
power. Use a volt meter or ADC to monitor the control mode by measuring the voltage at LPGD (J3 pin
5). When this pin has a voltage of >3V, the controller is working under constant power mode, when this
pin has a voltage of <3V, the controller is under constant current mode.
8. Shut down the controller. The ATLD201V1 can be shut down by pulling the shut down pin SDN (J3
pin 6). This pin has an internal 100KΩ pull-up resistor, a shunt capacitor of 10nF, and a negative logic:
SDN = 0 (<0.8V) turns the controller off; SDN = 1 (>1.8V) turns the controller on.
550 E. Weddell Drive, Suite 4, Sunnyvale, CA 94089, U. S. A. Tel.: (408) 747-9760, Fax: (408) 747-9770, Web: www.analogtechnologies.com
© Copyright 2000 – 2004, Analog Technologies, Inc. All Rights Reserved.
Updated: 3/24/2004
4
4페이지 | |||
구 성 | 총 5 페이지수 | ||
다운로드 | [ ATLD201V1.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
ATLD201V1 | Dual Mode 30MHz Modulation Laser Controller | AT |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |