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TDA7479_08 Datasheet, PDF (4/12 Pages) STMicroelectronics – Single chip RDS demodulator + filter | |||
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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 â open, closed to VS = quartz oscillator
â closed to GND = external driven
6
GND Ground
Output for ARI indication:
â high when RDS+ARI are present
7
ARI â high when only ARI is present
â low when only RDS is present
â undefined when nos signal is present
8
FILOUT Filter output
Frequency selector pin:
9
FSEL â 100 kHz to VS = 17.328 MHz
â open = 4.332MHz
â closed to VS = 8.664 MHz
Test mode pin:
10
TM â open = normal operation
â closed to VS = test mode
Reset pin:
11 EXTRES â open = run mode
â -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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