MPX

VREF

OSEL

FILOUT

GND

N.C.

N.C.

N.C.

OSCOUT

1

3

2

4

5

6

7

8

9

RDCL

RDDA

QUAL

ARI

N.C.

FSEL

TM

EXTRES

20

19

18

17

16

14

15

13

12

D97AU687

OSCIN

10

T57

11

PIN CONNECTION

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

Supply Voltage

7

V

Operating Temperature Range

-40 to 85

°C

Storage Temperature

-55 to 150

°C

PIN FUNCTION

N

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

- open = 4.332MHz

19

TM

Test mode pin:

- open = normal operation

20

EXTRES

Reset pin: - open = run mode

TDA7331

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