TDA9881HN datasheet(2/42 Pages) NXP

Part #	TDA9881HN

Description	Alignment-free vision and FM sound IF PLL demodulator for negative modulated TV standards

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Manufacturer	NXP [NXP Semiconductors]

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9397 750 13417

Product data sheet

Rev. 01 — 16 November 2004

2 of 42

Philips Semiconductors

TDA9881

Alignment-free vision and FM sound IF PLL demodulator

4.

Quick reference data

Table 1:

Quick reference data

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VP

supply voltage

[1] [2] 4.5

5.0

5.5

V

IP

supply current

52

63

70

mA

Video part

Vi(VIF)(rms)

VIF input voltage sensitivity

(RMS value)

−1 dB video at output

-

60

100

µV

GVIF(cr)

VIF gain control range

see Figure 6

60

66

-

dB

fVIF

vision carrier operating

frequencies

see Table 4

-

38.0

-

MHz

-

38.9

-

MHz

-

45.75

-

MHz

-

58.75

-

MHz

∆fVIF

VIF frequency window of digital

acquisition help

related to fVIF;

see Figure 9

-

±2.3

-

MHz

Vo(video)(p-p)

video signal output voltage

(peak-to-peak value)

see Figure 4

1.7

2.0

2.3

V

Gdif

differential gain

“CCIR 330”; B/G standard

[3] --5

%

ϕdif

differential phase

“CCIR 330”

-

2

4

deg

Bvideo(−3dB)(trap) −3 dB video bandwidth

including sound carrier trap

ftrap = 4.5 MHz

[4] 3.95

4.05

-

MHz

ftrap = 5.5 MHz

[4] 4.90

5.00

-

MHz

ftrap = 6.0 MHz

[4] 5.40

5.50

-

MHz

ftrap = 6.5 MHz

[4] 5.50

5.95

-

MHz

αSC1

trap attenuation at ﬁrst sound

carrier

M/N standard

26

36

-

dB

B/G standard

26

36

-

dB

S/NW(video)

weighted signal-to-noise ratio

of video signal

weighted in accordance

with “

CCIR 567”;

see Figure 10

[5] 55

--dB

PSRRCVBS

power supply ripple rejection at

pin CVBS

fripple =70Hz;

see Figure 5

[6] 20

25

-

dB

AFCstps

AFC control steepness

deﬁnition:

∆IAFC/∆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 of

audio signal

FM: 27 kHz FM deviation;

50

µs de-emphasis

-

0.15

0.50

%

BAF(−3dB)

−3 dB AF bandwidth

without de-emphasis;

dependent on FM PLL

ﬁlter

80

100

-

kHz

S/NW(AF)

weighted signal-to-noise ratio

of audio signal

FM: 27 kHz FM deviation;

50

µs de-emphasis; vision

carrier unmodulated

52

56

-

dB

α

AM(sup)

AM suppression of

FM demodulator

50

µs de-emphasis;

AM: f = 1 kHz and

m = 54 %; referenced to

27 kHz FM deviation

40

46

-

dB

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