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MC12078

更新时间： 2024-11-17 22:34:23

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		预分频器
页数	文件大小	规格书
3页	85K
描述
MECL PLL COMPONENTS ±256 PRESCALER

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数据手册

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MC12078 数据手册

SEMICONDUCTOR TECHNICAL DATA

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.

MECL PLL COMPONENTS

÷256

• 1.3GHz Toggle Frequency

• Operating Supply Voltage of 4.5 to 5.5V

PRESCALER

• Low–Power 28mA Typical at V

= 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

P SUFFIX

8–LEAD PLASTIC PACKAGE

CASE 626–05

Criteria

Internal Gate Count*

Value

Unit

Internal Gate Propagation Delay

Internal Gate Power Dissipation

250

Speed Power Product

2.5

D SUFFIX

8–LEAD PLASTIC SOIC PACKAGE

CASE 751–05

* Equivalent to a two–input NAND gate

MAXIMUM RATINGS

Symbol

Characteristic

Power Supply Voltage

Range

7.0

Unit

Vdc

°C

Pinout: 8–Lead Plastic (Top View)

Operating Temperature Range

Storage Temperature Range

0 to +85

–65 to +175

Output

stg

°C

ELECTRICAL CHARACTERISTICS (V

= 4.5 to 5.5V; T = 0 to +85°C)

Symbol

Characteristic

Min

Typ*

Max

Unit

Toggle Frequency

(Sine Wave Input)

1.3

1.6

GHz

MHz

max

min

Supply Current at 5.5V

GND

Input

out

Output Voltage

(Load =10pF)

0.8

1.2

Input Voltage

Sensitivity 150–1100MHz

1.3GHz

90MHz

4.0

7.0

in min

rms

Input

90–500MHz

400

in max

Overload 500–1300MHz

* Typical measured at +25°C, 5.0V

1. See Figure 1

7/93

REV 1

Motorola, Inc. 1996

12 3

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