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參數(shù)資料
| 型號(hào)： | TK15211 |
| 廠商： | TOKO Inc. |
| 英文描述： | Audio Analog Switch |
| 中文描述： | 音頻模擬開關(guān) |
| 文件頁數(shù)： | 5/12頁 |
| 文件大?。?/td> | 138K |
| 代理商： | TK15211 |
June 1999 TOKO, Inc.
Page 5
TK15211
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 the influence of noise from outside exists, use
optional filters.
5) Next, connect Pin 4 to the 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.
CROSS TALK (FIGURE 8)
This is the cross talk between Ach and Bch.
1) Pin 4 is 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 Log (V4 / V3)
This value is the cross talk to Ach from Bch.
8) Next, connect Pin 4 to the 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.
VCC
+
+
V
~
Figure 7
VCC
+
+
V
~
5K
V
~
V4
V3
~
+
Figure 8
I/O TERMINAL VOLTAGE (FIGURE 9)
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 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 the GND, or low level.
4) Measure in the same way.
This value is the terminal voltage of Bch.
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.
VCC
+
V
Figure 9
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK15211M | Audio Analog Switch |
| TK15211MTL | Audio Analog Switch |
| TK15220 | Audio Analog Switch |
| TK15220M | CAP .0033UF 100V PEN FILM 1206 5 |
| TK15220MTL | CAP .033UF 100V PEN FILM 1913 5% |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK15211M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:Audio Analog Switch |
| TK15211MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:Audio Analog Switch |
| TK15211MTL/S11 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:Audio Analog Switch |
| TK15220 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:Audio Analog Switch |
| TK15220M | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:Audio Analog Switch |
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