TDA7512F datasheet(29/45 Pages) STMICROELECTRONICS

29 / 45 page

TDA7512F

Software specification

Doc ID 12668 Rev 2

29/45

Table 12.

Addr 3,4 TV1,2 (offset refered to tuning voltage PIN 28)

MSB

LSB

Function

0000

000

Tuning Voltage Offset = 0

0000

001

TVO = 25mV

0000

010

TVO = 50mV

------

1111

111

TVO = 3175mV

------

-TVO

------

+TVO

Table 13.

Addr 5 IF counter control 1

MSB

LSB

Function

tSample = 20.48 ms (FM)128 ms (AM )

tSample = 10.24 ms (FM)64 ms (AM )

tSample = 5.12 ms (FM)32 ms (AM )

tSample = 2.56 ms (FM)16 ms (AM )

tSample = 1.28 ms (FM)8 ms (AM )

tSample = 640 µs (FM)4 ms (AM )

tSample = 320 µs (FM)2 ms (AM)

tSample = 160 µs (FM)1 ms (AM )

IF counter disable / stand by

IF counter enable

has to be set

Disable mute & AGC on hold

Enable mute & AGC on hold

Disable local mode

Enable local mode (PIN diode current = 0.5 mA) “ON”

Table 14.

Addr 6 IF Counter Control 2

MSB

LSB

Function

0000

fCenter = 10.60625 MHz

0001

fCenter = 10.61250 MHz

---

----

1011

fCenter = 10.67500 MHz

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