自动驾驶汽车(ADAS)中的晶振应用:四大核心模块选型解析
深入解析自动驾驶汽车监控系统、雷达测距、GPS定位、中央处理四大模块的晶振选型要求,涵盖贴片晶振、温补晶振(TCXO)、差分晶振。91香蕉视频在线播放科技提供全系列车规级晶振解决方案。
2026-09-02



| 技术指标 Technical Specifications | 条件 Condition | Min. | Typ. | Max. | Unit. | |
| 频率 Frequency | f | Ta= +25℃、VDD=VVLF~5.5V | - | 32.768 | - | kHz |
| 工作温度 Operating Temperature | Ta | - | -40 | 25 | 85 | ℃ |
| 频率稳定性 Frequency Stability | Δf/f | Ta=-40~85℃、VDD=3.0V | -140 | - | 10 | ppm |
| Ta=25℃、VDD=3.0V | -5 | - | 5 | ppm | ||
| 起振时间 Start-up Time | Tsta | Ta=+25℃、VDD=VDET1~5.5V | - | - | 1 | S |
| Ta=-40~+85℃、VDD=VDET1~5.5V | - | - | 3 | S | ||
| 电流消耗 Supply Current | IDD1 | SCL = SDA = "H"; FOUT = OFF; /INT = OFF | - | 0.22 | - | μA |
| VDD = VIO = VBAT = 3V; -40℃~85℃; | ||||||
| INIEN = 1b; CHGEN = 0b | ||||||
| IDD2 | SCL = SDA = "H"; FOUT = OFF; /INT = OFF | - | 0.18 | - | μA | |
| VDD = VIO = VBAT = 3V; -40℃~85℃; | ||||||
| INIEN = 0b; CHGEN = 0b | ||||||