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C

 

C

 

 

C

C

•

5 V supply voltage

•

Gain controlled wide-band Vision Intermediate
Frequency (VIF) amplifier, AC-coupled

•

Multistandard true synchronous demodulation with
active carrier regeneration: very linear demodulation,
good intermodulation figures, reduced harmonics, and
excellent pulse response

•

Gated phase detector for L and L-accent standard

•

Fully integrated VIF Voltage Controlled Oscillator
(VCO), alignment-free, frequencies switchable for all
negative and positive modulated standards via I

2

C-bus

•

Digital acquisition help, VIF frequencies of 33.4, 33.9,
38.0, 38.9, 45.75, and 58.75 MHz

•

4 MHz reference frequency input: signal from
Phase-Locked Loop (PLL) tuning system or operating
as crystal oscillator

•

VIF Automatic Gain Control (AGC) detector for gain
control, operating as peak sync detector for negative
modulated signals and as a peak white detector for
positive modulated signals

•

External AGC setting via pin OP1

•

Precise fully digital Automatic Frequency Control (AFC)
detector with 4-bit digital-to-analog converter, AFC bits
readable via I

2

C-bus

•

TakeOver Point (TOP) adjustable via I

2

C-bus or

alternatively with potentiometer

•

Fully integrated sound carrier trap for 4.5, 5.5, 6.0,
and 6.5 MHz, controlled by FM-PLL oscillator

•

Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode, PLL controlled

•

SIF-AGC for gain controlled SIF amplifier, single
reference QSS mixer able to operate in high
performance single reference QSS mode and in
intercarrier mode, switchable via I

2

C-bus

•

AM demodulator without extra reference circuit

•

Alignment-free selective FM-PLL demodulator with high
linearity and low noise

•

I

2

C-bus control for all functions

•

I

2

C-bus transceiver with pin programmable Module

Address (MAD)

•

Four I

2

C-bus addresses via MAD.

The TDA9885 is an alignment-free multistandard
(PAL and NTSC) vision and sound IF signal PLL
demodulator for negative modulation only and
FM processing.

The TDA9886 is an alignment-free multistandard
(PAL, SECAM and NTSC) vision and sound IF signal PLL
demodulator for positive and negative modulation,
including sound AM and FM processing.

•

TV, VTR, PC and STB applications.

TDA9885T/V3

SO24

plastic small outline package; 24 leads; body width 7.5 mm

SOT137-1

TDA9885TS/V3

SSOP24

plastic shrink small outline package; 24 leads; body width 5.3 mm

SOT340-1

TDA9885HN/V3

HVQFN32

plastic, heatsink very thin quad flat package; no leads; 32 terminals;
body 5

×

5

×

0.85 mm

SOT617-1

TDA9886T/V3

SO24

plastic small outline package; 24 leads; body width 7.5 mm

SOT137-1

TDA9886TS/V3

SSOP24

plastic shrink small outline package; 24 leads; body width 5.3 mm

SOT340-1

handbook, full pagewidth

MHC108

DIGITAL VCO CONTROL

AFC DETECTOR

RC VCO

VIF-PLL

VIF-AGC

TUNER AGC

SUPPLY

SIF AGC

AUDIO PROCESSING

AND SWITCHES

NARROW-BAND

FM-PLL DEMODULATOR

SINGLE REFERENCE QSS MIXER

INTERCARRIER MIXER

AND AM DEMODULATOR

SOUND TRAPS

4.5 to 6.5 MHz

TAGC

C

VAGC(pos)

C

AGC(neg)

C

BL

VAGC

(1)

TOP

14 (15)

VPLL

19 (21)

9 (8)

16

15 (16)

21 (23)

4 (2)

10 (9)

11 (10)

12 (11)

18 (20)

20 (22)

2 (31)

1 (30)

(18) 17

(7) 8

(3) 5

(4) 6

external reference signal

or 4 MHz crystal

REF

AFC

AUD

CVBS

audio output

video output

: 2 V (p-p)

[1.1 V (p-p) without trap]

C

AF

SIOMAD

SDA

SCL

MAD

V

P

C

AGC

(6, 12, 13, 14, 17,

19, 25, 28, 29, 32)

13

n.c.

AGND

7 (5)

DGND

OUTPUT

PORTS

I

2

C-BUS TRANSCEIVER

22 (24)

3 (1)

OP1

OP2

FMPLL

DEEM

AFD

sound intercarrier output

and MAD select

FM-PLL

filter

VIF-PLL

filter

de-emphasis

network

VIF2

VIF1

24 (27)

23 (26)

SIF2

SIF1

Fig.1  Block diagram.

(1)

Not connected for TDA9885.

Pin numbers for TDA9885HN in parenthesis.