4-4

Test Circuits and Waveforms

NOTES:

6.

FIGURE 2. CHARGE INJECTION TEST CIRCUIT AND MEASUREMENT POINTS

C = 0.001

µF||0.1µF

Chip Capacitors

FIGURE 3. OFF ISOLATION TEST CIRCUIT

C = 0.001

µF||0.1µF

Chip Capacitors

FIGURE 4. CHANNEL TO CHANNEL CROSSTALK TEST

CIRCUIT

LOGIC “0” = SWITCH ON

50%

90%

LOGIC

†

INPUT

SWITCH

OUTPUT

3V

LOGIC

INPUT

GND

1k

Ω

35pF

SWITCH

OUTPUT

15V

V+

-15V

V-

SWITCH

INPUT

(REPEAT TEST FOR

90%

SWITCH

INPUT

ON

OFF

ON

SWITCH

OUTPUT

ANALYZER

SIGNAL

GENERATOR

V+

C

V-

-15V

C

GND

CHAN A

CHAN B

+15V

OIRR

20 Log

V

S

V

D

--------

=

0V,

V+

GND

50

Ω

0V, 2.4V

NC

V-

-15V

ANALYZER

CHAN A

CHAN B

SIGNAL

GENERATOR

2.4V

C

C

+15V

3

CCRR

20 Log

V

-----------

=

DG201A, DG202