7

FN6212.1

June 30, 2006

capacitance.

FIGURE 3. BREAK-BEFORE-MAKE TIME

FIGURE 4. OFF ISOLATION TEST CIRCUIT

FIGURE 6. CROSSTALK TEST CIRCUIT

FIGURE 7. CAPACITANCE TEST CIRCUIT

90%

V+

0V

LOGIC

INPUT

SWITCH

OUTPUT

0V

LOGIC

INPUT

ADD0-1

COMA

35pF

50

Ω

A0-A3

GND

V+

C

INH

V+

C

B0-B3

COMB

ANALYZER

SIGNAL

GENERATOR

0V or V+

Ax or Bx

COMx

GND

V+

10nF

ADD1

ADD0

CHANNEL

SELECT

Off-Isolation is measured between COM and “Off” NO terminal on

each switch.

Signal direction through switch is reversed and worst case values

are recorded.

INH

0V or V+

Ax or Bx

COMA or

ADD1

GND

100mA

V+

C

COMB

ADD0

CHANNEL

SELECT

INH

0V or V+

ANALYZER

SIGNAL

GENERATOR

GND

ADD1

50

Ω

N.C.

V+

C

Crosstalk is measured between adjacent channels with one channel

ON and the other channel OFF.

Signal direction through switch is reversed and worst case values

are recorded.

ADD0

CHANNEL

SELECT

INH

GND

Ax or Bx

COMA or COMB

ADD1

IMPEDANCE

ANALYZER

0V or V+

V+

C

ADD0

CHANNEL

SELECT

INH

ISL43L841