TDA7478_11 Datasheet, PDF (4/11 Pages) STMicroelectronics – Single chip RDS demodulator

Block diagram and pins description
1.2
Pins description
Figure 2. Pin connection (top view)
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Table 2. Pins description
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 V_S = quartz oscillator
– closed to GND = external driven
6
GND Ground
7
N.U. Not Used (to be left open)
8
FILOUT Filter output
Frequency selector pin:
9
FSEL – open = 4.332 MHz
– closed to VS = 8.664 MHz
Test mode pin:
10
TM – open = normal operation
– closed to VS = testmode
Reset pin:
11 EXTRES – open = run mode
– closed to VS = reset condition
12
V_S
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
4/11
Doc 10679 Rev 3
TDA7478
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