M7612L-S08-R datasheet(4/5 Pages) UTC

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M7612

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

www.unisonic.com.tw

QW-R124-004,A

TEST CIRCUIT

678

Vcc

2 3

SW4

SW5

OSC

50Ω

1µF

SW2

OSC

50Ω

1µF

SW3

47µF

0.022µF

SW1

1µF

50Ω

OSC

1µF

Vcc

1000µ

UTC M7612

TEST NOTES

1. The output impedance is approximately 32Ω. Therefore, to ensure output matching, connect an external resistor

of 43Ω.

2. Connect a distortion meter to the output, and input a f = 1kHz sine wave. Adjust the input level until the output

distortion is 0.5%. This output voltage at this time multiplied by 2 is the maximum output level Vom (VP-P).

3. Input a 1VP-P, 1MHz sine wave. The voltage gain is given by GV = 20 log (VOUT / VIN) + 6.

4. Input a 1VP-P, 4.43MHz sine wave. The interchannel crosstalk is given by CT = 20 log (VOUT / VIN).

5. Input 1VP-P, 1MHz and 10MHz sine waves.

The frequency characteristic is given by GF= 20 log (VOUT (f = 10MHz) / VOUT (f = 1MHz)).

6. Input a 1VP-P, 1MHz sine wave. Reduce the CTL pin voltage from VCC. The CTL pin switching level (VTH) is the

CTL pin voltage at which the VOUT level drops below 20mVP-P.

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