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PDF TK15210MTL Data sheet ( Hoja de datos )
| Número de pieza | TK15210MTL | |
| Descripción | Audio Analog Switch | |
| Fabricantes | TOKO | |
| Logotipo |  |
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FEATURES
s Wide Operating Voltage Range (3 to 13 V)
s Low Distortion (typ. 0.004%)
s Wide Dynamic Range (typ. 6 VP-P)
s Low Output Impedance (typ. 20 Ω)
s Protection at Output Terminal.
TK15210
APPLICATIONS
s Audio Systems
s Radio Cassettes
Audio Analog Switch
DESCRIPTION
The TK15210M is an Analog Switch IC that was developed
for audio frequency applications. The function of the IC is
to select one output from two input channels. The channel
selection is controlled by a low level. The TK15210M
operates from a single power supply with the input bias
built-in (VCC/2). Because the distortion is very low, the
TK15210M is suitable for various signal switching
applications, especially Hi-Fi devices. The TK15210M
offers a wide operating voltage range with simple associated
circuitry.
The TK15210M is available in the small SOT23L-6 plastic
surface mount package.
TK15210
IN A
OUT20P
IN B
BLOCK DIAGRAM
VCC
ORDERING INFORMATION
TK15210M
IN A +
-
VCC
IN B +
-
Tape/Reel Code
VCC
GND
KEY
VCC
VCC
VCC
OUT
KEY
GND
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
Page 1
1 page  
TK15210
TEST CIRCUITS AND METHODS (CONT.)
RESIDUAL NOISE (FIGURE 7)
This value is not a S/N ratio. This is a noise which occurs
from the device itself.
1) Pin 4 is in the open condition, or high level.
2) Connect an AC volt meter to Pin 2.
3) Connect a capacitor to GND from Pin 1.
4) Measure the AC voltage of Pin 2. This value is the noise
of Ach. If external noise exists, use optional filters to
eliminate it.
5) Next, connect Pin 4 to GND, or low level.
6) Remove the capacitor of Pin 1 and connect the capacitor
to Pin 3.
7) Measure in the same way.
This value is the noise level of Bch.
+
5K
V
~
V4
+
V
~~
V3
Figure 8
I/O TERMINAL VOLTAGE (FIGURE 9)
VCC
+
+
V~
This is the DC voltage of the input and output.
VCC Because the input and the output are nearly equal, only the
output is measured.
+ 1) Pin 4 is in the open condition, or high level.
2) Connect a DC volt meter to Pin 2 and measure.
This value is the terminal voltage of Ach.
3) Next, connect Pin 4 to GND, or low level.
4) Measure in the same way.
This value is the terminal voltage of Bch.
Figure 7
VCC
+
CROSS TALK (FIGURE 8)
This is the cross talk between Ach and Bch.
1) Pin 4 is in the open condition, or high level.
2) Connect AC volt meters to Pin 2 and Pin 3.
3) Connect a capactior and a resistance in series to GND
from Pin 1.
4) Input sine wave (10 kHz, 1 Vrms) to Pin 3.
5) Measure the level of Pin 3 and name this V3.
6) Measure the level of Pin 2 and name this V4.
7) Calculate:
Cross Talk = 20 Log10 (V4 / V3)
This value is the cross talk to Ach from Bch.
8) Next, connect Pin 4 to GND, or low level.
9) Change line of Pin 1 and Pin 3.
10) Input the same sine wave to Pin 1.
11) Measure and calculate in the same way.
This value is the isolation to Bch from Ach.
V
Figure 9
OUTPUT TERMINAL DIFFERENCE
This is the DC output voltage difference between Ach and
Bch. This is calculated by using values measured at the
I/O Terminal Voltage.
∆ Vcent = | (Ach DC output value) - (Bch DC output
value) |
This value is the voltage difference.
January 2000 TOKO, Inc.
Page 5
5 Page 
NOTES
TK15210
January 2000 TOKO, Inc.
Page 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet TK15210MTL.PDF ] | |
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