PCA5007H 데이터 시트보기 (PDF) - Philips Electronics

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PCA5007H

Pager baseband controller

Philips Electronics 

Philips Semiconductors

Pager baseband controller

Product specification

PCA5007

6.3 Overview on the different clocks used within the PCA5007

Figure 3 gives an overview on the clocks available within the PCA5007 for the different functions.

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76.8 kHz

OSCILLATOR

6 MHz

OSCILLATOR

OS6CON.7

76.8 kHz

TONE GENERATOR

(both clock edges

are used)

76.8 kHz

76.8 kHz

76.8 kHz

CLOCK

CORRECTION

CCON.7

CORR

38.4 kHz

÷150

DIVIDER

FOR

÷9600

THE

DIFFERENT ÷2400

FREQUENCIES

÷4

256 Hz

4 Hz

16 Hz

9.6 kHz

76.8 kHz

6 MHz

UART

(both clock edges

are used)

TIMER 1

(both clock edges

are used)

DEMODULATOR/

CLOCK RECOVERY

TIMER 0

REAL-TIME CLOCK

WATCHDOG

WAKE-UP COUNTER

DC/DC CONVERTER

DIVIDER

OS6CON.7

400 kHz

I2C-BUS

6 MHz

MICROCONTROLLER

OUTPUT AND

EXTERNAL ACCESS

MGR109

Fig.3 Overview on the clocks used within the PCA5007.

1998 Oct 07

10

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