特長
● Automatically and quickly lock the modulator bias voltage, stabilizing it at NULL, PEAK, or ±Quad points.
● Input voltage range: ±5 V to ±12 V
● Small size: 10.8 × 10 × 3.8 mm
● Equipped with serial communication and easy-to-set bias point
主要パラメータ
Product Parameters (TA = 25°C)
parameter | symbol | test condition | least value | representative value | crest value | unit |
input voltage | ±Vin |
| ±5 | ±10 | ±12 | V |
output | IB |
| 30 |
|
| mA |
output voltage | VB |
| 0 |
| Vin-1.5 | V |
Pilot amplitude | VSIN |
|
| ±100 |
| mV |
Bias control accuracy | σB |
|
| ±1 |
| % |
Control Loop |
|
| P | PI | PID |
|
Maximum Absolute Rating Value
Parameter Name | symbol | Rated Value | unit |
DC Voltage | Vin | ±20 | V |
working temperature | TA | -55 ~ +125 | ℃ |
storage temperature | Tstg | -65 ~ +150 | ℃ |
寸法およびピン定義
Figure 1: Simplified principle block diagram
Pin Description
pin | Definition | pin | Definition |
1 | Vin/Input: Positive Voltage | 7 | MPD1-/Modulator input backlight detection negative electrode |
2 | GND/Input Ground | 8 | MPD2+/Modulator output backlight detection positive electrode |
3 | -Vin/Input Negative Voltage | 9 | MPD2-/Modulator output backlight detection negative electrode |
4 | Positive terminal of the Bias+/Modulator Bias Voltage | 10 | DGND/Communication Location |
5 | Bias/Modulator Bias Voltage Negative Pole | 11 | TX/Communication Sender |
6 | MPD1+/Modulator input backlight detection positive terminal | 12 | RX/Communication Receiver |
Usage Instructions
During welding, carefully refer to the pin definitions to avoid incorrect connections. When in use, both input and output terminals must be connected to nearby filter capacitors, with capacities no less than 10 μF.
Be careful not to connect the power supply in reverse or cause a short circuit between the input/output terminals, as this may damage the circuit.
Necessary ESD protection measures should be implemented to prevent electrostatic damage.
