54405IVZ データシートの表示（PDF） - Intersil

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54405IVZ

CD/MP3 Quality Stereo 2:1 Multiplexer with Click and Pop Elimination

Intersil 

ISL54405

Test Circuits and Waveforms (Continued)

FIGURE 1. SWITCHING TIMES

LOGIC

INPUT

VDD

0V

SWITCH

OUTPUT

VOUT 0V

90%

VNX

tD

LOGIC

INPUT

VDD C

Lx

R OR L

Rx

SEL

GND MUTE

VOUT

RL

CL

FIGURE 2A. MEASUREMENT POINTS

Repeat test for all switches. CL includes fixture and stray

capacitance.

FIGURE 2B. TEST CIRCUIT

FIGURE 2. BREAK-BEFORE-MAKE TIME

SIGNAL

GENERATOR

VDD

C

MUTE

Lx or Rx

rON = V1/80mA

VDD

C

Lx or Rx

ANALYZER

RL

SEL 0V OR VDD

L, R

GND

VNX

80mA

V1

SEL 0V OR VDD

L, R

GND MUTE

Signal direction through switch is reversed, worst case values

are recorded. Repeat test for all switches.

FIGURE 3. OFF-ISOLATION TEST CIRCUIT

Repeat test for all switches.

FIGURE 4. rON TEST CIRCUIT

SIGNAL

GENERATOR

VDD

C

Lx OR Rx

L, R

SEL

0V OR VDD

L, R

Lx or Rx

ANALYZER

NC

GND MUTE

RL

Signal direction through switch is reversed, worst case values

are recorded. Repeat test for all switches.

FIGURE 5. CROSSTALK TEST CIRCUIT

IMPEDANCE

ANALYZER

VDD

C

Lx or Rx

SEL 0V OR VDD

L, R

GND MUTE

Repeat test for all switches.

FIGURE 6. CAPACITANCE TEST CIRCUIT

7

FN6699.1

June 5, 2008

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