Rainbow-electronics DS1870 Instrukcja Użytkownika Pobierz pdf (Strona 3)

DS1870

LDMOS RF Power-Amplifier Bias

Controller

_____________________________________________________________________ 3

ANALOG VOLTAGE-MONITORING CHARACTERISTICS

= +4.5 to 5.5V, T

= -40°C to +95°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Monitor Factory-

Calibrated FS

Code FFF8h

2.488 2.500 2.513

Monitor Factory-

Calibrated FS

Code FFF8h

6.521 6.553 6.587

and I

Monitor Factory-

Calibrated FS

Code FFF8h

0.4975 0.5000 0.5025

Resolution

, V

, I

)

0.0122

%FS

Accuracy

, V

, I

)

0.25

0.5

%FS

Update Rate for

, V

, I

frame

50 ms

DIGITAL THERMOMETER CHARACTERISTICS

= +4.5 to 5.5V, T

= -40°C to +95°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Thermometer Error T

ERR

-40°C to 95°C -3 +3 °C

Update Rate t

frame

50 ms

ANALOG POTENTIOMETER CHARACTERISTICS

= +4.5 to 5.5V, T

= -40°C to +95°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Wiper Resistance +25°C

500 1000

Ω

Potentiometer

End-to-End Resistance

POT

+25°C

10.0

16.8

kΩ

Resolution 0.4

%FS

Absolute Linearity (Note 3) -1 +1 LSB

Relative Linearity (Note 4)

-0.5 +0.5

LSB

Ratiometric Temperature

Coefficient

ppm/°C

End-to-End Temperature

Coefficient

ppm/°C

-3dB Cutoff Frequency (Note 5) 1

MHz

Series Resistors from L1, L2 to

GND

+25°C

15.1 19.5 25.2

kΩ

HCOM

0.5975

0.6

0.6025

1 2 3 4 5 6 7 8 ... 27 28

Controller 1

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