TDA7331
description
RDS input signal
VREF
Reference voltage
OSEL
Oscillator selector pin:
- open, or closed to Vs = quartz oscillator
- closed to GND = external driven
FILOUT
Filter output
Ground
6 nc Not connected
7 nc Not connected
8 nc Not connected
9 OSCOUT
)10 OSCIN t(s11 T57
12 RDCL uc13 RDDA d14 QUAL ro15 ARI lete P16 Vs
17 nc so18 FSEL Ob19 TM t(s) -20 EXTRES uc PIN CONNECTION
Oscillator output
Oscillator input
Testing output pin: 57k Hz clock output
RDS clock output 1187.5Hz
RDS data output
Output for signal quality indication (High = good)
Output for ARI indication:
- high when RDS+ARI are present
- high when only ARI is present
- low when only RDS is present
- undefined when nos signal is present
Supply voltage
Not connected
Frequency selector pin:
- 100K to VS = 17.328MHz
- open = 4.332MHz
- closed to VS =...
