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參數資料
| 型號： | AK2570 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | Feed Forward APC LSI for LD Module |
| 中文描述： | 前饋apc的大規模集成電路模塊為勞工處 |
| 文件頁數： | 1/27頁 |
| 文件大小： | 292K |
| 代理商： | AK2570 |
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ASAHI KASEI
[AK2570]
<MS0115-E-00>
2001/10
1
AK2570
Feed Forward APC LSI for LD Module
DESCRIPTION
AK2570 is the monolithic CMOS LSI has the function of
‘
Feed Forward Automatic Power Control (APC)
’
for the
Laser Diode (LD) module and maintains the emission intensity of the LD module constant with the high accuracy.
For stabilizing the emission intensity of the LD module affected by the ambient temperature, AK2570 feeds the
compensation voltage from the 2channels - 8bits D to A converter to control the Bias- and the Modulation- current
for the LD module. The compensation voltage corresponds to the temperature characteristic data of the LD module
retained in the on-chip EEPROM and the ambient temperature detected by the on-chip thermo-sensor.
AK2570 outputs the alarm signal for the weakened LD emission caused by the aging degradation with comparing
the alarm threshold level and the signal from the monitoring Photo Diode (PD).
The data of the compensation voltage and the alarm threshold level retained in the on-chip EEPROM can be set to
suit for the characteristics of each LD module.
FEATURE
Realizing all APC function on 1 silicon chip
Controlling the driving current (the Bias- and the Modulation- current) for the LD module
* Consisting of the 2channels - 8bits D to A converter and the Op-amp
EEPROM (Electrically Erasable Programmable Read Only Memory)
* The Non-volatile Memory
* The memory capacity : Address 9bits
×
Data 16bits
* Retaining the data of the compensation voltage and the trimming data of the T-SENSE offset voltage and the ALM timing for
each LD module
On-chip Thermo-sensor (T-SENSE)
* Detecting the ambient temperature and converting the detected temperature to the voltage
On-chip Alarm circuit
* Outputting the alarm signal for the weakened LD emission caused by the aging degradation
On-chip Oscillator
On-chip Power on reset circuit
Serial interface
+3.3V
±
10% single voltage supply
Low power consumption (30mA [max])
Small package (20pin - SSOP : 7.9mm
×
7.4mm)
相關PDF資料 |
PDF描述 |
|---|---|
| AK2572 | APC for Burst Mode Applicable Direct Modulation Laser Diode |
| AK2573A | 125M / 156M Laser Diode Driver + APC |
| AK2573AVB | 125M / 156M Laser Diode Driver + APC |
| AK2574 | 156M Laser Diode Driver + APC for Burst Mode |
| AK2574VB | 156M Laser Diode Driver + APC for Burst Mode |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AK2571 | 制造商:AKM 制造商全稱:AKM 功能描述:Single-Chip Automatic Power/Temperature Control for WDM Laser Diodes |
| AK2572 | 制造商:AKM 制造商全稱:AKM 功能描述:APC for Burst Mode Applicable Direct Modulation Laser Diode |
| AK2573A | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
| AK2573AVB | 制造商:AKM 制造商全稱:AKM 功能描述:125M / 156M Laser Diode Driver + APC |
| AK2574 | 制造商:AKM 制造商全稱:AKM 功能描述:156M Laser Diode Driver + APC for Burst Mode |
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