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AS3935

Datasheet - Electrical Character i s t ics

6 Electrical Characteristics

6.1 Operating Conditions

In this specification, all the defined tolerances for external components need to be assured over the whole operation conditions range and also

over lifetime.

6.2 DC/AC Characteristics for Digital Inputs and Outputs

Note: On ALL outputs, use the cells with the smallest drive capability which will do the job, in order to prevent current/spikes problems.

6.3 Detailed System and Block Specification

Table 3. Operating Conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Positive supply voltage

In case the voltage regulator is ON

2.4

5.5

V

In case the voltage regulator is OFF

2.4

3.6

V

Ambient temperature

-40

85

ºC

Table 4. CMOS Input

Symbol

Parameter

Conditions

Min

Typ

Max

Units

High level input voltage

0.6*VDD

0.7*VDD

0.9*VDD

V

Low level input voltage

0.125*VDD

0.2*VDD

0.3*VDD

V

Table 5. CMOS Output

Symbol

Parameter

Conditions

Min

Typ

Max

Units

High level output voltage

With a load current of 1mA

VDD-0.4

V

Low level output voltage

VSS+0.4

V

Capacitive load

For a clock frequency of 1MHz

400

pF

Table 6. Tristate CMOS Output

Symbol

Parameter

Conditions

Min

Typ

Max

Units

High level output voltage

With a load current of 1mA

VDD-0.4

V

Low level output voltage

VSS+0.4

V

Tristate leakage current

To VDD and VSS

400

nA

Table 7. Electrical System Specifications

Symbol

Parameter

Min

Typ

Max

Units

Note

Input Characteristic

Input AC impedance

200

k

Ω

Current Consumption

Power-down current when VREG is OFF

12

µA

Power-down current when VREG is ON

815

µA

Current consumption in listening mode

when VREG is OFF

60

80

µA

Current consumption in listening mode

when VREG is ON

70

µA

Current Consumption in signal

verification mode

350

µA