TEA5767HL Просмотр технического описания (PDF) - Philips Electronics

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TEA5767HL

Low-power FM stereo radio for handheld applications

Philips Electronics 

Philips Semiconductors

Low-power FM stereo radio for

handheld applications

Product specification

TEA5767HL

The software programmable output (SWPORT1) can be

programmed to operate as a tuning indicator output.

As long as the IC has not completed a tuning action,

pin SWPORT1 remains LOW. The pin becomes HIGH,

when a preset or search tuning is completed or when a

band limit is reached.

The reference frequency divider of the synthesizer PLL is

changed when the MSB in byte 5 is set to logic 1. The

tuning system can then be clocked via pin XTAL2 at

6.5 MHz.

8.1.2 POWER-ON RESET

At Power-on reset the mute is set, all other bits are

random. To initialize the IC all bytes have to be transferred.

8.2 Writing data

WRITE/READ

CLOCK

DATA

50 %

tW(write)

tsu(clk)

50 %

50 %

th(write)

tsu(write)

50 %

valid

data

Fig.3 3-wire bus write data.

mhc250

2004 Sep 13

9

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