www.austriamicrosystems.com/Analog-Switches/AS1747-50

Revision 1.02

12 - 16

AS1747, AS1748, AS1749, AS1750

Datasheet - Ti m i n g D i a g r a m s

Figure 22. On-Loss, Off-Isolation, and Crosstalk

50

Ω

50

Ω

50

Ω

50

Ω

50

Ω

Network Analyzer

GND

0V or VCC

VCC

REF

MEAS

VOUT

VIN

+5V

10nF

IN_

NC1

NO1*

COM1

AS1747

Off-Isolation = 20log

VOUT

VIN

----------------

On-Loss = 20log

VOUT

VIN

----------------

Crosstalk = 20log

VOUT

VIN

----------------

*For crosstalk this pin is NO2.

NC2 and COM2 are open.

Measurements are standardized against shorts at IC terminals. Off-Isolation is

measured between COM_

and “OFF” NO_ or NC_ terminal on each switch. On-Loss is measured between

COM_ and “ON” NO_ or NC_ terminal on each switch. Crosstalk is measured from

one channel to the other channel. Signal direction through switch is reversed;

worst values are recorded.