TDA7479(2008) 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7479
(Rev.:2008)

Single chip RDS demodulator + filter

STMicroelectronics 

Block diagram and pin description

Table 2. Pin description

No pin Name

Description

1

QUAL Output for signal quality indication (High = good)

2

RDDA RDS data output

3

VREF Reference voltage

4

MPX RDS input signal

Oscillator selector pin:

5

OSEL – open, closed to VS = quartz oscillator

– closed to GND = external driven

6

GND Ground

Output for ARI indication:

– high when RDS+ARI are present

7

ARI – high when only ARI is present

– low when only RDS is present

– undefined when nos signal is present

8

FILOUT Filter output

Frequency selector pin:

9

FSEL – 100 kHz to VS = 17.328 MHz

– open = 4.332MHz

– closed to VS = 8.664 MHz

Test mode pin:

10

TM – open = normal operation

– closed to VS = test mode

Reset pin:

11 EXTRES – open = run mode

– -closed to VS = reset condition

12

VS

Supply voltage

13

OSCIN Oscillator input

14 OSCOUT Oscillator output

15

T57 Testing output pin: 57 kHz clock output

16

RDCL RDS clock output 1187.5 Hz

TDA7479

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