PMB2347 データシートの表示（PDF） - Infineon Technologies

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PMB2347

RF/IF Double PLL Frequency Synthesizer

Infineon Technologies 

PMB 2347

preliminary

Functional Description

10

CLK

11

LD/fo

12

Rext

13

RI

14

GND2

Serial Control Input Equivalent

10

EN

*2pF

560Ω

75kΩ

ESD

LD as Lock Detector

*2pF

11

LD/fo

ESD

OSW Output Equivalent

12

2pF

Rext

ESD

RI Input Equivalent

STDBY

13

RI

2pF

560Ω

ESD

/STDBY

500KΩ

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.

CP& Prescaler refer-

ence current setting

External resistor for CP &

Prescaler reference cur-

rent setting.

Reference frequency

input

Input with highly sensi-

tive preamplifier. With

small input signals AC

coupling must be set up,

where DC coupling can

be used for large input

signals.

Ground for bipolar cir-

cuitry

Wireless Components

3-4

Specification, August 1999

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