TDA8844 datasheet(30/68 Pages) PHILIPS

30 / 68 page

December 16, 1997

Philips Semiconductors

Tentative Device Speciﬁcation

I2C-bus controlled PAL/NTSC/SECAM TV

processors

TDA884X/5X-N2 series

Tuner take-over adjustment (via I2C-bus)

M.5.1

minimum starting level for tuner

take-over (RMS value)

−

0.2

0.8

M.5.2

maximum starting level for tuner

take-over (RMS value)

−

Tuner control output (pin 54)

M.6.1

maximum tuner AGC output

voltage

maximum tuner gain; note 2

−−

M.6.2

output saturation voltage

minimum tuner gain;

IO =2mA

−−

300

M.6.3

maximum tuner AGC output

swing

−−

M.6.4

leakage current RF AGC

−−

µA

M.6.5

input signal variation for

complete tuner control

0.5

AFC OUTPUT (VIA I2C-BUS); NOTE 14

M.7.1

AFC resolution

−

bits

M.7.2

window sensitivity

−

125

−

kHz

M.7.3

window sensitivity in large

window mode

−

275

−

kHz

VIDEO IDENTIFICATION OUTPUT (VIA I2C-BUS)

M.8.1

delay time of identiﬁcation after

the AGC has stabilized on a

new transmitter

−−

Sound circuit

DEMODULATOR INPUT;(PIN 1)

G.1.1

input limiting for PLL catching

range (RMS value)

−

12mV

G.1.2

catching range PLL

note 15

4.2

−

6.8

MHz

G.1.3

input resistance

note 2

−

8.5

−

Ω

G.1.4

input capacitance

note 2

−−

5pF

G.1.5

AM rejection

VI = 50 mV RMS; note 16

−

DE-EMPHASIS (PIN 55)

G.2.1

output signal amplitude (RMS

value)

note 15

−

500

−

G.2.2

output resistance

−

Ω

G.2.3

DC output voltage

−

NUMBER

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

TDA8844 Datasheet(PDF) 30 Page - NXP Semiconductors

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