FSA1258 datasheet(8/10 Pages) FAIRCHILD

Part #	FSA1258

Description	Low-RON Low-Voltage, Dual SPST Analog Switch with Low-ICCT ?쏛??Option

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FSA1256(A) / FSA1257(A) / FSA1258(A) Rev. 1.0.5

8

Test Diagrams (Continued)

RS and RT are functions of the application

environment (50, 75, or 100 ).

V

OUT

GND

RT

GND

V

S

RS

Network Analyzer

RT

GND

VSel

GND

Crosstalk = 20 Log (V

OUT / VIN)

V

IN

Figure 12.

Adjacent Channel Crosstalk

RS

VOUT

Q =

ΔVOUT • CL

ΔVOUT

VOUT

VCC

0V

Input – VSEL

Generator

GND

VS

CL

VSEL

VIN

B

nSn

GND

CL includes test fixture and stray capacitance

GND

Off

On

Off

mA

Figure 13.

Charge Injection Test

B0nB1

Capacitance

Meter

Select

B0,B1

f=1MHz

VS = 0 or VCC

nBn

Capacitance

Meter

Select

f=1MHz

VS = 0 or VCC

nBn

Figure 14.

Channel Off Capacitance

Figure 15.

Channel On Capacitance

VOUT

GND

RT

GND

VS

RS

Audio Analyzer

VCNTRL

GND

VIN

VCNTRL =0or Vcc

RS and RT are functions of the

application environment.

Figure 16.

Total Harmonic Distortion

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