TDA8844 datasheet(25/68 Pages) PHILIPS

25 / 68 page

December 16, 1997

Philips Semiconductors

Tentative Device Speciﬁcation

I2C-bus controlled PAL/NTSC/SECAM TV

processors

TDA884X/5X-N2 series

OUTPUT CONTROL BITS

Table 61 Power-on-reset

Table 62 Field frequency indication

Table 63 Phase 1 (

ϕ1) lock indication

Table 64 X-ray protection

Table 65 Colour decoder mode

Table 66 Output vertical guard

Table 67 Indication RGB-1/2 (TDA 885X)insertion

POR

MODE

normal

power-down

FSI

FREQUENCY

050 Hz

160 Hz

INDICATION

not locked

locked

XPR

OVERVOLTAGE

no overvoltage detected

overvoltage detected

CD2

CD1

CD0

STANDARD

no colour standard identiﬁed

NTSC with X-tal pin 34

PAL with X-tal pin 35

SECAM

NTSC with X-tal pin 35

PAL with X-tal pin 34

spare

NDF

VERTICAL OUTPUT STAGE

0OK

failure

INX

RGB INSERTION

no (pin 26/38 and/or 44 LOW)

yes (pin 26/38 and/or 44HIGH)

Table 68 Output video identiﬁcation

Table 69 AFC output

Table 70 X-tal indication

Table 71 Condition black current loop

Table 72 Mask version indication

Table 73 Condition vertical divider

IFI

VIDEO SIGNAL

no video signal identiﬁed

video signal identiﬁed

AFA

AFB

CONDITION

outside window; too low

outside window; too high

in window; below reference

in window; above reference

SXA

SXB

CONDITION

two 3.6 MHz X-tals

only 3.6 MHz X-tal

only 4.4 MHz X-tal

3.6 and 4.4 MHz X-tal

BCF

CONDITION

black current loop is stabilised

black current loop is not stabilised

MASK VERSION

N1 version

N2 version

IVW

STANDARD VIDEO SIGNAL

no standard video signal

standard video signal (525 or 625 lines)

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