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SAA5249

Integrated VIP and Teletext with Background Memory Controller (IVT1.1BMCX)

Philips Electronics 

Philips Semiconductors

Integrated VIP and Teletext with

Background Memory Controller

Preliminary specification

SAA5249

CHARACTERISTICS

VDD = 5 V ± 10%; Tamb = −20 to +70 °C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

Supplies

VDD

IDD(tot)

supply voltage

total supply current

Inputs

CVBS

Vsync

td(sync)

sync amplitude

delay from CVBS to TCS output

from STTV buffer (nominal video,

average of leading/trailing edge)

∆td(sync)

change in sync delay between all

black and all white video input at

nominal levels

Vvid(p-p)

video input amplitude

(peak-to-peak value)

display PLL catching range

Zsource

Ci

source impedance

input capacitance

IREF

Rgnd

resistor to ground

POL

VIL

LOW level input voltage

VIH

HIGH level input voltage

ILI

input leakage current

Ci

input capacitance

Vi = 0 to VDD

LFB

VIL

VIH

ILI

Ii

td(LFB)

LOW level input voltage

HIGH level input voltage

input leakage current

input current

delay between LFB front edge

and input video line sync

Vi = 0 to VDD

note 1

VCR/FFB

VIL

LOW level input voltage

VIH

HIGH level input voltage

ILI

input leakage current

Ii

input current

Vi = 0 to VDD

note 1

MIN.

4.5

−

0.1

−150

0

0.7

±7

−

−

−

−0.3

2.0

−10

−

−0.3

2.0

−10

−1

−

−0.3

2.0

−10

−1

TYP.

5.0

90

0.3

0

−

1.0

−

−

−

27

−

−

−

−

−

−

−

−

250

−

−

−

−

MAX.

UNIT

5.5

V

120

mA

0.6

V

+150

ns

25

ns

1.4

V

−

%

250

Ω

10

pF

−

kΩ

+0.8

V

VDD + 0.5 V

+10

µA

10

pF

+0.8

V

VDD + 0.5 V

+10

µA

+1

mA

−

ns

+0.8

V

VDD + 0.5 V

+10

µA

+1

mA

1996 Nov 07

10

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