Datasheet AS3935 (ScioSense) - 8

AS3935 −
Electrical Characteristics All limits are guaranteed. The parameters with min and max
Electrical Characteristics
values are guaranteed with production tests or SQC (Statistical Quality Control) methods.
Operating Conditions
All defined tolerances for external components in this specification need to be assured over the whole operation condition range and also over lifetime.
Figure 6: Operating Conditions Symbol Parameter Conditions Min Typ Max Units
In case the voltage regulator is ON 2.4 5.5 V Positive supply VDD voltage In case the voltage regulator is OFF 2.4 3.6 V Ambient TAMB -40 85 ºC temperature
DC/AC Characteristics for Digital Inputs and Outputs Figure 7: CMOS Input Symbol Parameter Min Typ Max Units
VIH High level input voltage 0.6*VDD 0.7*VDD 0.9*VDD V VIL Low level input voltage 0.125*VDD 0.2*VDD 0.3*VDD V
Note(s):
1. On ALL outputs, use the cells with the smallest drive capability which will do the job, in order to prevent current/spikes problems.
Figure 8: CMOS Output Symbol Parameter Conditions Min Typ Max Units
High level output VOH VDD-0.4 V voltage With a load current of 1mA VOL Low level output voltage VSS+0.4 V For a clock frequency of CL Capacitive load 400 pF 1MHz
ams Datasheet Page 7
[v1-04] 2016-Jan-13 Document Feedback Document Outline ScioSense_Cover_page AS3935 Data Sheet General Description Key Benefits & Features Applications Block Diagram Pin Assignments Absolute Maximum Ratings Electrical Characteristics Operating Conditions DC/AC Characteristics for Digital Inputs and Outputs Detailed System and Block Specification Typical Operating Characteristics Detailed Description Circuit Operating Modes Power-Down Mode Listening Mode Signal Verification System and Block Specification Register Table Register Table Description and Default Value Serial Peripheral Interface (SPI) SPI Command Structure Writing of Register Data Reading of Data from Addressable Registers (READ Mode) Send Direct Command Byte I²C Guideline for Pull Up Resistors on I2CL and I2CD I²C Byte Write I²C Register Read Direct Command Voltage Regulator Analog Front-End (AFE) and Watchdog Noise Floor Level Measurement and Evaluation Lightning Algorithm Signal Validation Energy Calculation Statistical Distance Estimation Interrupt Management Antenna Tuning Clock Generation Noise Sources to Be Avoided Package Drawings & Markings Ordering & Contact Information RoHS Compliant & ams Green Statement Copyrights & Disclaimer Document Status Revision Information Content Guide