UT3243

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

5 of 9

www.unisonic.com.tw

QW-R502-573.F



ELECTRICAL CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP MAX UNIT

Receiver Positive or

Negative Threshold to

INVALID

High

Fig.2

1

µs

Low

30

µs

RECEIVER INPUTS

Input Voltage Range

-25

25

V

Input Threshold Low

0.6

1.2

V

0.8

1.5

Input Threshold High

1.5

2.4

V

1.8

2.4

Input Hysteresis

0.3

V

Input Resistance

3

5

7

kΩ

TRANSMITTER OUTPUTS

Output Voltage Swing

All transmitter outputs loaded with

3kΩ to ground

±4.8

±5.4

V

Output Resistance

Transmitter output = ±2V

300

10M

Ω

Output Short-Circuit Current

±35

±60

mA

Output Leakage Current

±25

µA

MOUSE DRIVABILITY

Transmitter Output Voltage

±4.8

V

TIMING CHARACTERISTICS

Maximum Data Rate

DR

one transmitter switching

120

235

kbps

Receiver Propagation Delay

Receiver input to receiver output,

0.3

µs

0.3

Receiver Output Time

Enable

Normal operation

200

ns

Disable

200

ns

Transmitter Skew

200

1000

ns

Receiver Skew

100

500

ns

Transition-Region Slew Rate

SR

measured from +3V

~ -3V or -3V ~ +3V

4

8.0

30

V/µs

6

30

2. C1~C4 = 0.1µF, measured at 3.3V ±10%. C1 = 0.047µF, C2~C4 = 0.33µF, measured at 5.0V ±10%.