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부품번호 | TK15321MTL 기능 |
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기능 | Audio Analog Switch | ||
제조업체 | TOKO | ||
로고 | |||
FEATURES
s Wide Operating Voltage Range (3 to 14 V)
s Low Distortion (typ. 0.004%)
s Wide Dynamic Range (typ. 6 VP-P)
s Low Output Impedance (typ. 20 Ω)
s Low Switching Noise (typ. 3 mV)
TK15321
APPLICATIONS
s Audio Systems
s Radio Cassettes
Audio Analog Switch
DESCRIPTION
The TK15321M is an Analog Switch IC that was developed
for audio frequency. Function is to select one output from
two inputs in a device that includes two circuits, and the
channel can be changed by low level. The TK15321M has
a mono-power supply and the input bias is a built-in type
(VCC / 2 V). Because the distortion is very low, the TK15321M
fits various signals switching. It is best suited for Hi-Fi
devices. Operating voltage is wide, the circuit plan is
simple. The TK15321M is available in a small plastic
surface mount package (SSOP-12).
ORDERING INFORMATION
TK15321M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
TK15321
1ch-in
VCC
Bch
OUT
Ach
1KEY
NC
GND
11 Bch
10 OUT
9 Ach
8 2 KEY
7 NC
2ch-in
BLOCK DIAGRAM
Ach
1ch-in
Bch
+
-
+
-
Ach
2ch-in
Bch
+
-
+
-
Reg. (VCC / 2)
VCC
1 ch ou
1KEY
2 ch ou
2KEY
GND
May 1999 TOKO, Inc.
Page 1
TK15321
TEST CIRCUITS AND METHODS (CONT.)
VCC
+
~
+
Cont.
TOTAL HARMONIC DISTORTION (FIGURE 4)
Use the lower distortion oscillator for this measurement
because distortion of the TK15321 is very low.
1) Pin 5 is in the open condition, or high level.
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
distortion of 1-Ach.
5) Next connect Pin 5 to the GND, or low level.
6) Input the same sine wave to Pin 2.
7) Measure in the same way. This value is the distortion
of 1-Bch.
Figure 2
VCC
CONTROL OUTFLOW/INFLOW CURRENT (FIGURE 3)
This current means the maximum current with the control.
1) Measure the current from Pin 5 to GND. This current is
the outflow current.
2) Next, measure the current from VCC to Pin 5. This
current is the inflow current.
++
Cont.
VCC
+
Figure 3
Figure 4
VOLTAGE GAIN (FIGURE 5)
This is the output level against input level.
1) Pin 5 is in the open condition, or high level.
2) Connect AC volt meters to Pin 4 and Pin 3.
(Using the same type meter is best)
3) Input a sine wave (f = max. 20 kHz, 1 Vrms) to Pin 4.
4) Measure the level of Pin 4 and name this V1.
5) Measure the level of Pin 3 and name this V2.
6) Calculate Gain = 20 Log (( |V2 - V1| )/V1)
V1<V2 + Gain, V1>V2 - Gain
This value is the voltage gain of 1-Ach.
7) Next, connect Pin 5 to the GND, or low level.
8) Input the same sine wave to Pin 2.
9) Measure and calculate in the same way.
This value is the voltage gain of 1-Bch.
Page 4
May 1999 TOKO, Inc.
4페이지 VCC
++
TK15321
TEST CIRCUITS AND METHODS (CONT.)
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 = | (1 - Ach value) - (1 - Bch value) |
This value is the voltage difference of 1ch.
++
+
Cont.
Figure 9
10 K
I/O TERMINAL VOLTAGE (FIGURE 10)
This is the DC voltage of input and output.
Because the input and the output are nearly equal, only the
output is measured.
1) Pin 5 is in the open condition, or high level.
2) Connect a DC volt meter to Pin 3 and measure.
This value is the terminal voltage of 1-Ach.
3) Next, connect Pin 5 to the GND, or low level.
4) Measure in the same way.
This value is the terminal voltage of 1-Bch.
VCC
+
Cont.
Figure 10
May 1999 TOKO, Inc.
Page 7
7페이지 | |||
구 성 | 총 12 페이지수 | ||
다운로드 | [ TK15321MTL.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
TK15321MTL | Audio Analog Switch | TOKO |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |