STV2050A datasheet(68/83 Pages) STMICROELECTRONICS

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STV2050A - ELECTRICAL CHARACTERISTICS

20.8 HORIZONTAL AND VERTICAL SYNCHRONIZATION INPUTS

20.9 TBU OUTPUTS

20.10 ELECTRICAL LOOP PADS

Notes:

1. PORA..C Input level can be latched in measuring line or with sys. clock.

2. PORA..C and OPTT input have digital inputs.

3. OPTI is only an input pin.

4. MLIN is only an output pin. It sends a pulse during the measuring line(M_Line, see ‘gain range control’). The signal can

be used to gate the comparators at the PORT A...C pins or to switch time constants.

Parameter

Min.

Typ.

Max.

Unit

Conditions

Threshold VUP

1.4

1.8

Threshold difference VDOWN -

VUP

0.130

Temperature drift of VUP

Const. supply voltage

Ambient temp. 10×-

70×C

Parameter

Min.

Typ.

Max.

Unit

Conditions

Output voltage at low level

(logical “0”)

0.4

2 mA input current

Output voltage at high level

(logical “1”)

2.4

2 mA output current

Parameter

Min.

Typ.

Max.

Unit

Conditions

Output voltage at low level

(logical “0”)

0.4

2 mA input current

Output voltage at high level

(logical “1”)

2.4

2 mA output current

Leakage current at high

impedance

1µA

0 < VOUT < VDD

Output current (GAH = 10 bin.)

-0.5

Irefn

+0.5

2 k

Ω load,

Max voltage = 1V

Temperature drift of Ref cur-

rent

± 60

ppm /×C

2 k

Ω load, including

the temperature drift

of the bandgap

Input logical “0”

0.7

Input logical “1”

2.6

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