TDA18271HD Ver la hoja de datos (PDF) - NXP Semiconductors.

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Fabricante

TDA18271HD

Silicon Tuner IC

NXP Semiconductors. 

NXP Semiconductors

6. Block diagram

TDA18271HD

Silicon Tuner IC

AGC CONTROL

DC-to-DC

CONVERTER

DIGITAL

CIRCUITRY

RF_IN

STO

LT

FM_IN

LNA

10

AGC1

15

13

8

ATTENUATORS

AGC2

LC

tracking

filters

RF

polyphase

filter

RF

AGC

IF

polyphase

mixer filter

IF

low-pass

filter

AGC

DUAL TUNER

PROTOCOL

IF

AGC

45

46

47

28

19

IFOUTN

IFOUTP

V_IFAGC

FREEZE

MASTERSYNC

TDA18271HD

CONTROL

INTERFACE

TEST SIGNAL

GENERATOR

CALIBRATION

SYNTHESIZER

crystal

oscillator

DIVIDER

MAIN

SYNTHESIZER

VCO

32 38 39

AS SCL SDA

35

VT_CAL

34

26

CP_CAL

XTALP

27

XTALN

24

22

CP_LO

VT_FINE

21

VT_COARSE

Fig 1. Block diagram

001aag453

TDA18271HD_4

Product data sheet

Rev. 04 — 19 May 2009

© NXP B.V. 2009. All rights reserved.

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