M64884FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M64884FP

Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (Cordless Telephone)

M64884FP

Transistor for VCO,1st IF MIX,2-multiple circuit built-in 500MHz/1GHz Dual PLL Synthesizer

9. Lock Detection, PD Output

Comparison

Frequency

Local Oscillator

div ision output

Source

PD output

Sink

LOCK output

1

2

3

14

15

Note 10) The PD output is placed in the "Source" status when the phase of local oscillator div ision output

is behind the phase comparison f requency. It is placed in the "Sink" status when the phase of

local oscillator div ision output adv ances.

11) "

" means high impedance status.

12) When the phase dif f erence that is 8 times or less* of the OSC f requency c ontinues 15 or more

cy c les of comparison f requency (Fref ), LOCK output is placed in the "L" status.

(*625ns when a 12.8MHz oscillator is used)

13) When the power supply of each sy stem is turned of f , the LOCK output status goes to "H".

14) The LOCK output circuit is an open drain output of t he N channel MOS transistor. Use this circuit

with pull-up.

Ver 1.0

Nov 25,1998

MITSUBISHI

ELECTRIC

6

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