TDA7541B datasheet(49/77 Pages) STMICROELECTRONICS

Part #	TDA7541B

Description	AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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49 / 77 page

TDA7541B

Software specification

Doc ID 16048 Rev 1

49/77

Table 21.

Addr 4 TV/IF Counter (FM ACh, AM 1Ch)

Addr25

MSB

LSB

Function

------

TVO+

Disable additional TV offset

Enable additional TV offset + 3.175 V

-----

TVM

TV is tracking with PLL

TV is independing on PLL

----

ISSENA

ISS Filter switched off (bypass of filter, wide)

ISS filter control enable

IFS<4:3>

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

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

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

-1

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

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

tSample = 0.64 ms (FM) 4 ms (AM)

tSample = 0.32 ms (FM) 2 ms (AM)

tSample = 0.16 ms (FM) 1 ms (AM)

----

EW<6:5>

Δf = 12.5 kHz (FM) 2 kHz (AM)

Δf = 25 kHz (FM) 4 kHz (AM)

Δf = 50 kHz (FM) 8 kHz (AM)

Δf = 100kHz (FM) 16kHz (AM)

Not valid

Δf = 6.25 kHz (FM) 1 kHz (AM)

FMON

------

Select AM mode

Select FM mode

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