MC12080DR2 datasheet(2/4 Pages) ONSEMI

Part #	MC12080DR2

Description	1.1 GHz Prescaler

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MC12080

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Table 3. ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5 V; TA = −40 to 85°C, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Toggle Frequency (Sine Wave)

ft

0.1

1.4

1.1

GHz

Supply Current Output (Pin 2)

ICC

−

3.7

5.0

mA

Input Voltage Sensitivity

100 to 250 MHz

250 to 1100 MHz

Vin

400

100

−

1000

mVpp

Divide Ratio Control Input High (SW1, SW2, SW3)

VIH

VCC − 0.5 V

VCC

VCC + 0.5 V

V

Divide Ratio Control Input Low (SW1, SW2, SW3)

VIL

Open

−

Output Voltage Swing (Note 1)

RL = 820 W, IO = 4.0 mA for ÷10

RL = 1.6 kW, IO = 2.1 mA for ÷20

RL = 3.3 kW, IO = 1.1 mA for ÷40

RL = 6.2 kW, IO = 0.57 mA for ÷80

Vout

0.8

1.2

−

Vpp

1. Assumes 8.0 pF load and 1.1 GHz input frequency (typical), IO at VCC = 5.0 V and TA = 25°C.

Sine Wave Generator

50

W

C1

C2

C3

VCC = 4.5 to 5.5 V

CL

RL

VCC

In

Gnd

Out

External Components

C1 = C2 = 1000 pF

C3 = 0.1

mF

CL = 8.0 pF (Including Scope and Jig Capacitance)

RL = 820 W for ÷10 at 1.1 GHz

SW2

SW1

DQ

CQ

DQ

CQ

DQ

C

Q

In

D

C

Q

D

C

Q

Out

Figure 1. Logic Diagram

1

0

SW1

DQ

CQ

DQ

CQ

SW3

SW2

SW3

Figure 2. AC Test Circuit

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