TDA7541 datasheet(49/76 Pages) STMICROELECTRONICS

部件名	TDA7541

功能描述	AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system

PDF	76 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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49 / 76 page

TDA7541

Software specification

49/76

Table 20.

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

Addr25

MSB

LSB

Function

TVM

TV is tracking with PLL

TV is independing on PLL

TVO+

Disable additional TV offset

Enable additional TV offset + 3.175V

ISSENA

ISS Filter switched off (bypass of filter, wide)

ISS filter control enable

IFS<4:3>

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

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

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

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

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

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

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

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

EW<6:5>

Δf = 12.5kHz (FM) 2kHz (AM)

Δf = 25kHz (FM) 4kHz (AM)

Δf = 50kHz (FM) 8kHz (AM)

Δf = 100kHz (FM) 16kHz (AM)

Not valid

Δf = 6.25kHz (FM) 1kHz (AM)

FMON

Select AM mode

Select FM mode

TDA7541 数据表(PDF) 49 Page - STMicroelectronics

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