Rainbow-electronics MAX1386 Manual do Utilizador descarregar pdf (Página 15)

MAX1385/MAX1386

Dual RF LDMOS Bias Controllers

with I

C/SPI Interface

______________________________________________________________________________________ 15

Pin Description

PIN NAME FUNCTION

1 DGND Digital Ground

2 SAFE1

Safe Status Channel 1 Output. Programmable active-high or active-low. SAFE1 asserts when

programmed channel 1 temperature threshold or current threshold has been reached.

3 A0/CSB

C-Compatible Address 0/ SPI-Compatible Chip Select. See the Digital Serial Interface section. In

SPI mode, drive A0/CSB low to select the device.

4 CNVST

Active-Low Conversion-Start Input. Drive CNVST low to start a conversion (clock modes 01 and 11).

Connect CNVST to DV

when initiating conversions through the serial interface (clock mode 00).

5 SEL Mode Select. Connect SEL to DGND to select I

C mode. Connect SEL to DV

to select SPI mode.

6 ALARM

Alarm Output. Program ALARM for comparator or interrupt output modes (see the Alarm Modes

section). Program ALARM to assert on any combination of channel temperature or current

thresholds.

7 SAFE2

Safe Status Channel 2 Output. Programmable active-high or active-low. SAFE2 asserts when

programmed channel 2 temperature threshold or current threshold has been reached.

8, 19, 25, 28,

35–39, 42, 46

N.C. No Connection. Not internally connected.

9 REFDAC DAC Reference Input/Output

10 REFADC ADC Reference Input/Output

11 DXP1

Diode Positive Input 1. Connect to anode of temperature diode or the base and collector of an npn

transistor.

12 DXN1 Diode Negative Input 1. Connect to cathode of temperature diode or the emitter of an npn transistor.

13 DXP2

Diode Positive Input 2. Connect to anode of temperature diode or the base and collector of an npn

transistor.

14 DXN2 Diode Negative Input 2. Connect to cathode of temperature diode or the emitter of an npn transistor.

15 ADCIN1 ADC Input 1

16 ADCIN2 ADC Input 2

17 PGAOUT2 Programmable-Gain Amplifier Output 2

18 AV

Analog Power-Supply Input

20, 21, 22 AGND Analog Ground

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 51 52

MAX1385/MAX1386 1
C/SPI Interface 1

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