SAA5700 查看數據表（PDF） - Philips Electronics

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SAA5700

Chinese Character System Teletext (CCST) decoder

Philips Electronics 

Philips Semiconductors

Chinese Character System Teletext

(CCST) decoder

Preliminary specification

SAA5700

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

STTV

VSTTV

VSTTV(DC)

IO(drive)

VCS, TCS amplitude

nominal DC voltage

output drive

R, G AND B

IOL

LOW-level output current (black

level)

IOH

HIGH-level output current

(full intensity)

VDDX = 5 V

RL

load resistance to VSSO for nominal

1 V(p-p) output

CL

load capacitance

to(r)

output rise time

10% to 90%

to(f)

output fall time

90% to 10%

BLAN (VDS)

VOH

HIGH-level output voltage

IOH = −2 mA

VOL

LOW-level output voltage

IOL = 2 mA

CL

load capacitance

to(r)

output rise time

10% to 90%

to(f)

output fall time

90% to 10%

tSK

skew delay between outputs R,G,B

and BLAN

0.2

0.3

1.85

2.0

−

−

−10

−

5.1

6.0

−

160

−

−

−

−

−

−

VDD − 0.25 −

0

−

−

−

−

−

−

−

−

−

0.4

V

2.15

V

3

mA

+10

µA

6.9

mA

−

Ω

20

pF

15

ns

15

ns

VDD

V

0.2

V

50

pF

15

ns

15

ns

15

ns

Notes

1. This current is the maximum allowed into the inputs when line and field flyback signals are connected to these inputs.

An external series resistor must be used to limit the input currents to 1 mA.

2. Measured from VIL(max) to VIH(min).

3. Measured from VIH(min) to VIL(max).

1997 May 16

13

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