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TK15329 Datasheet(PDF) 7 Page - TOKO, Inc |
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TK15329 Datasheet(HTML) 7 Page - TOKO, Inc |
7 / 16 page June 1999 TOKO, Inc. Page 7 TK15329 SEPARATION (FIGURE 9) This is the cross talk between 1ch and 2ch. 1) Connect either Pin 5 or Pin 8 to V CC. One side pin is low level or open. 2) Connect AC volt meters to Pin 4 (or Pin 2) and Pin 10. 3) Connect Pin 9 and Pin 11 to GND through capacitors and a resistance. 4) Input a sine wave (10 kHz, 1 Vrms) to Pin 2 and Pin 4. 5) Measure the level of Pin 4 and name this V5. 6) Measure the level of Pin 10 and name this V6. 7) Calculate: SEP = 20 Log (V6 / V5) This value is the separation to 2ch from 1ch. TEST CIRCUITS AND METHODS (CONT.) 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) Connect V CC to Pin 5, Pin 8 is in the open condition or low level. 2) Connect a DC volt meter to Pin 3 and measure. This value is the terminal voltage of 1-Ach. 3) Next, reverse conditions at Pin 5 and Pin 8. 4) Measure in the same way. This value is the terminal voltage of 1-Bch. VCC 10 K + 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 = | (1 - Ach value) - (1 - Bch value) | This value is the voltage difference of 1ch. VCC + Figure 10 |
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