SAB9079 datasheet(35/48 Pages) PHILIPS

35 / 48 page

2000 Jan 13

Philips Semiconductors

Preliminary speciﬁcation

Multistandard Picture-In-Picture (PIP)

controller

SAB9079HS

DIGITAL CHARACTERISTICS

All VDDD(C) pins = 3.0 to 3.6 V; Tamb =0to70 °C; unless otherwise speciﬁed.

Note

1. The internal system frequencies are 3584, 1792, 896 and 448 times the HSYNC input frequency.

TEST AND APPLICATION INFORMATION

TV application with insertion before 100 Hz feature box (double window)

In the 100 Hz application the deflection circuit operates at 100 Hz. The PIP data is inserted into the main decoder output

stream and fed to the feature box. The double window feature is made at 1Fh and the field rate is doubled in the feature

box. The internal synchronization is illustrated in Fig.9.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYPE

MAX.

UNIT

DC characteristics

VIH

HIGH-level input voltage

−−

%VDDD

VIL

LOW-level input voltage

−−

%VDDD

Vhys

hysteresis voltage

−

%VDDD

VOH

HIGH-level output voltage

VDDD(P) − 0.4

−−

VOL

LOW-level output voltage

−−

0.4

I

LI

input leakage current

VDDD = 3.6 V

−

0.1

µA

IOZ

3-state input leakage

current

VDDD = 3.6 V

−

0.2

µA

Rpu

internal pull-up resistor

Ω

AC characteristics

fsys

system frequency

note 1

−

3584xHSYNC

kHz

rise time

−

625

fall time

−

625

handbook, full pagewidth

MGS829

Y*UV

MAIN AND

DISPLAY

SUB

DECODER

SWITCH

Y*UV

FEATURE

BOX

Y*UV

Y*UV/RGB

FBL

Fig.9 1Fh/1Fv application with insertion before the feature box.

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