TDA9885TSSLASHV3 datasheet(5/56 Pages) PHILIPS

5 / 56 page

2003 Oct 02

Philips Semiconductors

Product speciﬁcation

I2C-bus controlled single and multistandard

alignment-free IF-PLL demodulators

TDA9885; TDA9886

Notes

1. Values of video and sound parameters can be decreased at VP = 4.5 V.

2. For applications without I2C-bus, the time constant (R

× C) at the supply must be >1.2 µs (e.g. 1 Ω and 2.2 µF).

3. Condition: luminance range (5 steps) from 0 % to 100 %.

4. AC load: CL < 20 pF and RL >1kΩ. The sound carrier frequencies (depending on the TV standard) are attenuated

by the integrated sound carrier traps (see Figs 13 to 18;

H (s) is the absolute value of transfer function).

5. S/NW is the ratio of the black-to-white amplitude to the black level noise voltage (RMS value measured on pin CVBS).

B = 5 MHz weighted in accordance with

“CCIR 567”.

Audio part

Vo(AF)(rms)

AF output voltage (RMS value)

27 kHz FM deviation;

µs de-emphasis

430

540

650

THD

total harmonic distortion of audio

signal

FM: 27 kHz FM deviation;

µs de-emphasis

−

0.15

0.50

AM: m = 54 %

−

0.5

1.0

BAF(−3dB)

−3 dB AF bandwidth

without de-emphasis;

dependent on FM-PLL ﬁlter

100

−

kHz

S/NW(AF)

weighted signal-to-noise ratio of

audio signal

FM: 27 kHz FM deviation;

µs de-emphasis;

vision carrier unmodulated

−

AM: m = 54 %

−

αAM(sup)

AM suppression of

FM demodulator

µs de-emphasis;

AM: f = 1 kHz and

m = 54 %; referenced to

27 kHz FM deviation

−

PSRRAUD

power supply ripple rejection on

pin AUD

fripple = 70 Hz; see Fig.6

for AM

−

for FM

−

Vo(intc)(rms)

IF intercarrier output level

(RMS value)

QSS mode; SC1; SC2 off

140

180

L standard;

without modulation

140

180

intercarrier mode;

PC/SC1 = 20 dB; SC2 off;

note 6

−

Reference frequency

fref

reference signal frequency

note 7

−

MHz

Vref(rms)

reference signal voltage

(RMS value)

operation as input terminal

−

400

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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