TDA7331 Datasheet, PDF (2/7 Pages) STMicroelectronics – SINGLE CHIP RDS DEMODULATOR+ FILTER

TDA7331
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V_S
Supply Voltage
T_op
Operating Temperature Range
T_stg
Storage Temperature
7
V
-40 to 85
°C
-55 to 150
°C
PIN FUNCTION
N^o pin
Name
Functional description
1
MPX
RDS input signal
2
VREF
Reference voltage
3
OSEL
Oscillator selector pin: - open, or closed to Vs = quartz oscillator
- closed to GND = external driven
4
FILOUT
Filter output
5
GND
Ground
6
nc
Not connected
7
nc
Not connected
8
nc
Not connected
9
OSCOUT
Oscillator output
10
OSCIN
Oscillator input
11
T57
Testing output pin: 57kHz clock output
12
RDCL
RDS clock output 1187.5Hz
13
RDDA
RDS data output
14
QUAL
Output for signal quality indication (High = good)
15
ARI
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
16
Vs
Supply voltage
17
nc
Not connected
18
FSEL
Frequency selector pin: - 100K to V_S = 17.328MHz
- open = 4.332MHz
- closed to V_S = 8.664MHz
19
TM
Test mode pin: - open = normal operation
- closed to V_S = testmode
20
EXTRES
Reset pin: - open = run mode
- closed to V_S = reset condition
PIN CONNECTION
MPX
VREF
OSEL
FILOUT
GND
N.C.
N.C.
N.C.
OSCOUT
OSCIN
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
D97AU687
EXTRES
TM
FSEL
N.C.
V_S
ARI
QUAL
RDDA
RDCL
T57
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