ML2731CT Просмотр технического описания (PDF) - Micro Linear Corporation

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ML2731CT

PA Bias Controller

Micro Linear Corporation 

PRELIMINARY

ML2731

PIN DESCRIPTIONS (continued)

Pin # Signal Name

I/O

Description

12

C1

O (ANLG) Noise Shunt. Negative voltage generator bypass capacitor connection.

Typically a 100nF capacitor is connected between pin C1 and C2

13

VPA

O (ANLG) PA supply. This is the positive supply for the PA. It is switched by PAEN

in conjunction with PDN and NEGEN

14

PDN

I (ANLG) Power down control. Disables all circuits and reduces power

consumption to less than 1mA

15

XIN

I (ANLG) Crystal or oscillator input. This high input impedance is connected to

either an oscillator circuit or to a crystal

16

XOUT

I (ANLG) Crystal-tank connection. This low impedance output drives the crystal

tank circuit

January, 2000 PRELIMINARY DATASHEET

5

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