TDA7541B datasheet(47/77 Pages) STMICROELECTRONICS

Part #	TDA7541B

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

PDF	77 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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47 / 77 page

TDA7541B

Software specification

Doc ID 16048 Rev 1

47/77

5.4

Data byte specification

Table 16.

Subaddress description

MSB

LSB

Function

A4A3

A2A1

0000

Charge pump control

1011

Audio noise blanker II

----

Page mode “OFF”

Page mode enable

Table 17.

Addr 0 TPLL charge pump control (0Bh)

MSB

LSB

Function

---

ICP<2:0>

Charge pump current = 50 µA

Charge pump current = 0.5 mA

Charge pump current = 1 mA

Charge pump current = 1.5 mA

Charge pump current = 3 mA

Charge pump current = 3.5 mA

LDENA

Lock detector disable

Lock detector enable

---

SDM

Stereo decoder mute disable

Stereo decoder mute enable

----

Local mode disable

Local mode enable

-----

ASFC

Weak signal mute and AGC normal mode in FM

Weak signal mute and AGC on hold in FM mode

-----

SEEK

ISS time constant at pin 30 available, AM SEEK “OFF”

ISS time constant at pin 31 available, AM SEEK “ON”

TDA7541B Datasheet(PDF) 47 Page - STMicroelectronics

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