AS1747-BTDT(2009) 查看數據表（PDF） - austriamicrosystems AG

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AS1747-BTDT
(Rev.:2009)

Low-Voltage, Dual SPDT, Audio Clickless Switch with Negative Rail Capability

austriamicrosystems AG 

AS1747

Datasheet - Timing Diagrams

Figure 18. On-Loss, Off-Isolation, and Crosstalk

+5V 10nF

0V or VCC

50Ω

VCC

IN_

COM1

AS1747

NC1

GND

NO1*

VIN

VOUT

Network Analyzer

50Ω

50Ω

MEAS

50Ω

REF

50Ω

*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.

Off-Isolation = 20log V-----O----U-----T--

VIN

On-Loss = 20log V-----O----U-----T--

VIN

Crosstalk = 20log V-----O----U-----T--

VIN

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