TDA9885T Ver la hoja de datos (PDF) - NXP Semiconductors.

Número de pieza

componentes Descripción

Fabricante

TDA9885T

I2C-bus controlled single and multistandard alignment-free IF-PLL demodulators

NXP Semiconductors. 

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CVAGC(pos)

TOP TAGC

9 (8) 14 (15)

VAGC(1)

16 (17)

CAGC(neg)

CBL

TUNER AGC

VIF AGC

VIF-PLL

filter

VPLL

19 (21)

RC VCO

external reference signal

or 4 MHz crystal

REF

15 (16)

AFC

21 (23)

DIGITAL VCO CONTROL AFC DETECTOR

VIF2 2 (31)

VIF1 1 (30)

SIF2 24 (27)

SIF1 23 (26)

SUPPLY

VIF PLL

TDA9885

TDA9886

SINGLE REFERENCE QSS MIXER

INTERCARRIER MIXER

AND AM DEMODULATOR

MAD

SIF AGC

OUTPUT

PORTS

CAGC

I2C-BUS TRANSCEIVER

SOUND CARRIER

TRAPS

4.5 MHz to 6.5 MHz

(18) 17 CVBS

video output: 2 V (p-p)

[1.1 V (p-p) without trap]

AUDIO PROCESSING

AND SWITCHES

(7) 8 AUD

audio output

(3) 5 DEEM

de-emphasis

network

(4) 6 AFD

NARROWBAND

CAF

FM-PLL DEMODULATOR

20 (22)

VP

18 (20)

AGND

(6, 12, 13, 14, 17,

19, 25, 28, 29, 32)

13

n.c.

3 (1) 22 (24) 11 (10) 10 (9) 7 (5) 12 (11)

OP1 OP2 SCL SDA DGND SIOMAD

4 (2)

FMPLL

008aaa174

sound intercarrier output

and MAD select

FM-PLL

filter

Pin numbers for TDA9885HN and TDA9886HN in parentheses.

(1) Not connected for TDA9885

Fig 1. Block diagram of TDA9885; TDA9886

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