TDA9884HN datasheet(3/58 Pages) NXP

Nome de Peças	TDA9884HN

Descrição Electrónicos	I2C-bus controlled multistandard alignment-free IF-PLL for mobile reception

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TDA9884_2

Product data sheet

Rev. 02 — 12 May 2006

3 of 58

Philips Semiconductors

TDA9884

I2C-bus controlled multistandard alignment-free IF-PLL

[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 Figure 16 to Figure 21;

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

[5]

Measurement using uniﬁed weighting ﬁlter (“

ITU-T J.61”), 200 kHz high-pass ﬁlter, 5 MHz low-pass ﬁlter and subcarrier notch ﬁlter

(“

ITU-T J.64”).

[6]

The intercarrier output signal at pin SIOMAD can be calculated by the following formulae taking into account the internal video signal

with 1.1 V (p-p) as a reference:

and

, where:

is

the correction term for RMS value,

is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is the correction

term of internal circuitry and

±3 dB is the tolerance of video output and intercarrier output Vo(intc)(rms).

[7]

Pin REF is able to operate as a 1-pin crystal oscillator input as well as an external reference signal input, e.g. from the tuning system.

AFCstps

AFC control steepness

deﬁnition:

∆I

AFC/∆fVIF

0.85

1.05

1.25

µA/kHz

Audio part

Vo(AF)(rms)

AF output voltage (RMS value)

27 kHz FM deviation;

50

µs de-emphasis

430

540

650

mV

THD

total harmonic distortion

FM: 27 kHz FM deviation;

50

µs de-emphasis

-

0.15

0.50

%

AM: m = 54 %

-

0.5

1.0

%

BAF(−3dB)

−3 dB AF bandwidth

without de-emphasis;

measured with FM-PLL

ﬁlter in Figure 23

80

100

-

kHz

S/NW(AF)

weighted signal-to-noise ratio of

audio signal

FM-PLL only:

27 kHz FM deviation;

50

µs de-emphasis

52

56

-

dB

AM: in accordance with

“ITU-R BS.468-4”

45

50

-

dB

αAM(sup)

AM suppression of

FM demodulator

referenced to 27 kHz

FM deviation;

50

µs de-emphasis;

AM: f = 1 kHz; m = 54 %

40

46

-

dB

PSRR

power supply ripple rejection

fripple = 70 Hz; see Figure 8

for FM

14

20

-

dB

for AM

20

26

-

dB

Vo(intc)(rms)

IF intercarrier output level

(RMS value)

QSS mode; SC1; SC2 off

90

140

180

mV

L standard;

without modulation

90

140

180

mV

intercarrier mode;

PC/SC1 = 20 dB; SC2 off

[6] -75

-

mV

Reference frequency input (pin REF)

fref

reference signal frequency

[7] -4

-MHz

Vref(rms)

reference signal voltage

(RMS value)

operation as input terminal

80

-

400

mV

Table 1.

Quick reference data …continued

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

V

ointc

() rms

()

1.1

1

22

----------

×

10

r

V

×

=

r

1

20

------

V

iSC

()

V

iPC

()

---------------- dB

() 6dB 3 dB

±

+





×

=

1

22

----------

V

iSC

()

V

iPC

()

---------------- dB

()

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