PMB2349 Просмотр технического описания (PDF) - Infineon Technologies

Номер в каталоге

Компоненты Описание

производитель

PMB2349

Wireless Components Optimized RF/IF Dual PLL Frequency Synthesizer

Infineon Technologies 

Confidential

PMB 2349

preliminary

Functional Description

Table 3-1 Pin Definition and Function (continued)

Pin No. Symbol

Equivalent I/O-Schematic

7

EN

Serial Control Input Equivalent

8

CLK

*2pF

560Ω

75kΩ

8

DA

ESD

Serial Control Input Equivalent

9

DA

*2pF

560Ω

75kΩ

ESD

10

CLK

11

MFO

Serial Control Input Equivalent

10

EN

*2pF

560Ω

75kΩ

ESD

LD as Lock Detector

*2pF

11

L D /fo

ESD

Function

3-Wire bus input:

Enable

Enable input of the serial

control interface with

Schmitt-Trigger input

stage. When EN=H the

input signals CLK and DA

are disabled. When EN=L

the serial control interface

is enabled. The received

data are transferred to the

registers with the positive

edge of the EN-signal.

3-Wire bus input: Data

Data input of the serial

control interface with

Schmitt-Trigger input

stage.The serial data are

read into the internal shift

register with the positive

edge of CLK.

3-Wire bus input: Clock

Clock input of the serial

control interface with

Schmitt-Trigger input

stage

Lock detector output

Unipolar output of the

phase detector in the

form of a pulse-width

modulated signal. In the

locked state the output

signal is at H-level. In

standby mode the output

is resistive.

For test purpose the push

pull output fo is enabled.

Wireless Components

3-4

Specification, May 2000

Share Link: