AX−SIP−SFEU, AX−SIP−SFEU−API

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8

Table 5. LOGIC

Symbol

Description

Condition

Min

Typ

Max

Units

DIGITAL INPUTS

VT+

Schmitt trigger low to high threshold point

VDD_IO = 3.3 V

1.55

V

VT−

Schmitt trigger high to low threshold point

1.25

V

VIL

Input voltage, low

0.8

V

VIH

Input voltage, high

2.0

V

VIPA

Input voltage range, GPIO[3:0] and GPIO[13:12]

−0.5

VDD_IO

V

VIPBC

Input voltage range, GPIO[9:4], UARTRX

−0.5

5.5

V

IL

Input leakage current

−10

10

mA

RPU

Programmable Pull−Up Resistance

65

kW

DIGITAL OUTPUTS

IOH

Output Current, high

GPIO[14:0], UARTTX, TXLED, RXLED, TXLED,

CPULED

VOH = 2.4 V

8

mA

IOL

Output Current, low

GPIO[14:0], UARTTX, TXLED, RXLED, TXLED,

CPULED

VOL = 0.4 V

8

mA

IOZ

Tri−state output leakage current

−10

10

mA

AC Characteristics

Table 6. TRANSMITTER

(Conditions for transmitter specifications unless otherwise specified are for DVK−SIP−SFEU−1−GVK hardware configuration and at

868.130 MHz frequency.)

Symbol

Description

Condition

Min

Typ

Max

Units

SBR

Signal bit rate

100

bps

PTXmin

Lowest Transmitter output power (Note 6)

AT$CW=868130000,1,0

−1

dBm

PTXmax

Highest Transmitter output power (Note 6)

AT$CW=868130000,1,14

13

dBm

PTXstep

Programming step size output power

1

dB

dTXtemp

Transmitter power variation vs. temperature

−30°C to +85°C

±0.8

dB

dTXVdd

Transmitter power variation vs. VDD_IO

2.1 to 3.6 V

±0.03

dB

PTXharm2

Emission @ 2nd harmonic

−58

dBc

PTXharm3

Emission @ 3rd harmonic

−80

PTXharm4

Emission @ 4th harmonic

−86

6. The output power of the AX−SIP−SFEU / AX−SIP−SFEU−API can be programmed in 1 dB steps, by changing transmitter power setting from

0 − 14. The lowest power setting is 0, which gives −1 dBm typical power at nominal temperature. The highest power setting is 14, which gives

13 dBm typical power at nominal temperature and close to 14 dBm typical power at minimum temperature.