Optical transceiver is highly sensitive to operating temperature; rising operating temperature can directly cause optical power attenuation, degradation of extinction ratios, etc. Long-term high-temperature operation can accelerate device aging or even transceiver failures. EXSENSE gold termination NTC chip, as highly compatible temperature measurement component, can achieve real-time temperature acquisition inside optical transceiver, providing data support for temperature control and overload protection, and are key to ensuring long-term stable operation of optical transceiver.

When the optical transceiver is operating, the EXSENSE gold termination NTC chip cooperates with its internal TEC and other components to ensure smooth temperature information acquisition by the temperature control system of transceiver. The real-time temperature measured by the NTC is forwarded by the voltage divider circuit and transmitted to the MCU. The MCU then relies on preset algorithms to analyze the temperature data and judge the operating status of transceiver in real time. If the junction temperature is abnormal, it triggers control mechanisms such as power reduction, enhanced heat dissipation, and overload protection, precisely controlling the operating temperature of core components and avoiding optical path distortion and device burnout caused by temperature abnormalities at the hardware level. In this process, what electrical characteristics does the EXSENSE gold termination bare chip rely on to ensure the stringent operation requirements of the optical transceiver?

1. High accuracy: Internal temperature acquisition deviations in optical transceiver directly affect alarm threshold judgment and laser compensation accuracy. Gold termination NTC with ±1% accuracy can accurately capture tiny temperature changes in the transceiver, avoiding insufficient temperature control caused by measurement deviations, ensuring stable optical power and transmission rates, meeting the temperature control requirements of high-speed optical communication.

2. Responsive response: In layouts with limited internal space and small thermal time constants, the EXSENSE gold termination NTC chip can quickly follow hotspot temperature changes, reducing thermal protection response delay and allowing ample response time for rapid temperature control adjustment of transceiver, thereby lowering the probability of device damage caused by instantaneous high temperatures.

3. Small dimension: EXSENSE optical transceiver NTC chip can reach 0.21mm × 0.21mm, meeting the current trend of miniaturization and integration in optical transceiver.