MC12078 データシートの表示（PDF） - Motorola => Freescale

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MC12078

1.3GHz Prescaler

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

1.3GHz Prescaler

The MC12078 is a divide by 256 prescaler. Typical frequency

synthesis applications include elctronically tuned TV/CATV and

communication systems as well as instrumentation.

An internal preamplifier is included which isolates the differential inputs

and provides gain for the input signal. Differential PECL outputs are

provided.

• 1.3GHz Toggle Frequency

• Operating Supply Voltage of 4.5 to 5.5V

• Low–Power 28mA Typical at VCC = 5.0V

• Operating Temperature Range of 0°C to +85°C

• High Input Sensitivity

• 800mV Minimum Peak–to–Peak Output Swing

• Differential PECL Outputs

DESIGN GUIDE

Criteria

Value

Unit

Internal Gate Count*

62

ea

Internal Gate Propagation Delay

250

ps

Internal Gate Power Dissipation

10

mW

Speed Power Product

2.5

pJ

* Equivalent to a two–input NAND gate

MAXIMUM RATINGS

Symbol

Characteristic

VCC

TA

Tstg

Power Supply Voltage

Operating Temperature Range

Storage Temperature Range

Range

Unit

7.0

Vdc

0 to +85

°C

–65 to +175

°C

ELECTRICAL CHARACTERISTICS (VCC = 4.5 to 5.5V; TA = 0 to +85°C)

Symbol

Characteristic

Min

Typ*

Max

Unit

fmax1

fmin

Toggle Frequency

(Sine Wave Input)

1.3

1.6

GHz

90

MHz

ICC

Vout

Supply Current at 5.5V

Output Voltage

(Load =10pF)

28

35

mA

0.8

1.2

VPP

Vin min

Input Voltage 90MHz

Sensitivity 150–1100MHz

1.3GHz

10

20 mVrms

4.0

10

7.0

20

Vin max Input

90–500MHz 400

Overload 500–1300MHz 400

mVrms

* Typical measured at +25°C, 5.0V

1. See Figure 1

MC12078

MECL PLL COMPONENTS

÷256

PRESCALER

P SUFFIX

8–LEAD PLASTIC PACKAGE

CASE 626–05

D SUFFIX

8–LEAD PLASTIC SOIC PACKAGE

CASE 751–05

Pinout: 8–Lead Plastic (Top View)

Output

VCC

NC

8765

1234

NC

GND

Input

7/93

© Motorola, Inc. 1996

1

REV 1

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