TK15329 TOKO, TK15329 Datasheet - Page 4

• Manufacturer Part Number: TK15329
• Description: Audio Analog Switch
• Manufacturer: TOKO

TK15329
CONTROL LOW/HIGH LEVEL (FIGURE 2)
This level is to measure the threshold level.
1) Input, the V
2) Input to Pin 4 with sine wave (f = 1 kHz, V
3) Connect an oscilloscope to Pin 3.
4) Pin 8 is in the open condition or low level. Elevate Pin
CONTROL INPUT IMPEDANCE (FIGURE 3)
This is the input resistance of control terminals.
1) Measure the inflow current from V
2) Calculate:
Page 4
V CC
when the wave appears.
5 voltage gradually from 0 V until the sine wave appears
at the oscilloscope. This voltage is the threshold level,
other measurements, omitted from the next for simplicity)
This resistance is the input impedance.
+
~
IMP = V
CC
to Pin 1. (This condition is the same with
+
CC
/ Inflow Current
Cont.
Figure 2
TEST CIRCUITS AND METHODS (CONT.)
CC
to Pin 5.
IN
= 1 Vrms).
TOTAL HARMONIC DISTORTION (FIGURE 4)
Use the lower distortion oscillator for this measurement
because distortion of the TK15329 is very low.
1) Connect V
2) Connect a distortion analyzer to Pin 3.
3) Input the sine wave (1 kHz, 1 Vrms) to Pin 4.
4) Measure the distortion of Pin 3. This value is the
5) Next, reverse conditions at Pin 5 and Pin 8.
6) Input the same sine wave to Pin 2.
7) Measure in the same way. This value is the distortion
V CC
level.
distortion of 1-Ach.
of 1-Bch.
CC
to Pin 5, Pin 8 is in the open condition or low
+
Figure 3
June 1999 TOKO, Inc.