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STPM14ATR 데이터시트(PDF) 7 Page - STMicroelectronics |
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7 / 43 page STPM11/12/13/14 Electrical characteristics 7/43 4 Electrical characteristics Table 4. Electrical characteristics (VCC =5V, TA= 25°C, 2.2µF between VDDA and VSS, 2.2µF between VDDD and VSS, 2.2µF between VCC and VSS unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit Energy measurement accuracy fBW Effective bandwidth Limited by digital filtering 5 400 Hz Error Measurement error Over the dynamic range (5% to 1000% of the calibration power value) 0.1 % SNR Signal to noise ratio Over the entire bandwidth 52 db PSRRDC Power supply DC rejection Voltage signal: 200 mVrms/50Hz Current signal: 10 mVrms/50Hz fCLK= 4.194 MHz VCC=3.3V±10%, 5V±10% 0.2 % PSRRAC Power supply AC rejection Voltage signal: 200 mVrms/50Hz Current signal: 10 mVrms/50Hz fCLK= 4.194 MHz VCC=3.3V+0.2Vrms1@100Hz VCC=5.0V+0.2Vrms1@100Hz 0.1 % General section VCC Operating supply voltage 3.0 5.5 V ICC Supply current configuration registers cleared or device locked (TSTD=1) 4 MHz, VCC = 5V 3.5 4 mA 8 MHz, VCC = 5V 4.7 6 ∆ICC Increase of supply current per configuration bit, during programming 4 MHz, VCC = 5V 120 µA/bit Increase of supply current per configuration bit with device locked 4 MHz, VCC = 5V 2 POR Power on reset on VCC 2.5 V VDDA Analog supply voltage 2.85 3.0 3.15 V VDDD Digital supply voltage 1.425 1.50 1.575 V fCLK Oscillator clock frequency MDIV bit = 0 4.000 4.194 MHz MDIV bit = 1 8.000 8.192 MHz fLINE Nominal line frequency 45 65 Hz VOTP OTP programming voltage 14 20 V IOTP OTP programming current per bit 2.5 mA tOTP OTP programming time per bit 100 300 µs |
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