TDA8844 datasheet(38/68 Pages) PHILIPS

38 / 68 page

December 16, 1997

Philips Semiconductors

Tentative Device Speciﬁcation

I2C-bus controlled PAL/NTSC/SECAM TV

processors

TDA884X/5X-N2 series

Colour demodulation part

CHROMINANCE AMPLIFIER

D.1.1

ACC control range

note 40

−−

D.1.2

change in amplitude of the

output signals over the ACC

range

−−

2dB

D.1.3

threshold colour killer ON

−30

−−

D.1.4

hysteresis colour killer OFF

strong signal conditions;

S/N

≥ 40 dB; note 5

−

D.1.5

noisy input signals; note 5

−

ACL CIRCUIT; NOTE 41

D.2.1

chrominance burst ratio at

which the ACL starts to operate

−

3.0

−

REFERENCE PART

Phase-locked loop; note 42

D.3.1

catching range

±360

±600

−

D.3.2

phase shift for a

±400 Hz

deviation of the oscillator

frequency

note 5

−−

deg

Oscillator

D.4.1

temperature coefﬁcient of the

oscillator frequency

note 5

−−

Hz/K

D.4.2

oscillator frequency deviation

with respect to the supply

note 5; VP =8V ±10%

−−

D.4.3

minimum negative resistance

−−

1.0

Ω

D.4.4

maximum load capacitance

−−

HUE CONTROL

D.5.1

hue control range

63 steps; see Fig.10

±35

±40

−

deg

D.5.2

hue variation for

±10% VP

note 5

−

deg

D.5.3

hue variation with temperature

Tamb = 0 to 70 °C; note 5

−

deg

DEMODULATORS (PINS 29 AND 30)

General

D.6.1

−Y) output signal amplitude

(peak-to-peak value)

note 43

−

1.05

−

D.6.2

−Y) output signal amplitude

(peak-to-peak value)

note 43

−

1.33

−

D.6.3

spread of signal amplitude ratio

between standards

note 5

−1.5

−

+1.5

D.6.4

output impedance (R

−Y)/(B−Y)

output

note 5

−

500

−Ω

D.6.5

bandwidth of demodulators

−3 dB; note 44

−

650

−

kHz

NUMBER

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

TDA8844 Datasheet(PDF) 38 Page - NXP Semiconductors

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