TDA7512F datasheet(27/45 Pages) STMICROELECTRONICS

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TDA7512F

Software specification

Doc ID 12668 Rev 2

27/45

5.3

Data byte specification

SMSL

S meter slope

SMTH

Softmute startpoint threshold

TDEV

Time constant for deviation detector

TEST

Testing PLL/IFC (only for testing)

TIN

Switch FSU PIN to TEST input (only for testing)

TINAC

Test input adjacent channel (only for testing)

TINACM

Test input adjacent channel mute (only for testing)

TINMP

Test input multipath(only for testing)

TISS

Time constant for ISS filter “ON”/”OFF”

TOUT

Switch FSU PIN to Test output (only for testing)

TVO

Tuning voltage offset for prestage

TVWB

Tuning voltage offset for prestage (weather band mode)

VCOD

VCO divider

XTAL

Xtal frequency adjust

Table 7.

Control register function (continued)

Function

Table 8.

Subaddress

MSB

LSB

Function

A4A3A2A1

00000

Charge pump control

00001

PLL lock detector

---

-----

10101

I/Q ADJ

-----

Page mode “OFF”

-----

Page mode enable

Table 9.

Addr 0 charge pump control

MSB

LSB

Function

High current = 0 mA

High current = 0.5 mA

High current = 1 mA

High current = 1.5 mA

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