Datasheet > MC12079P

MC12079P

更新时间： 2024-11-18 03:53:23

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描述
MECL PLL COMPONENTS /64/128/256 PRESCALER

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MC12079P 数据手册

Order this document by MC12079/D

The MC12079 is a single modulus divide by 64, 128, 256 prescaler for low

power frequency division of a 2.8 GHz (typical) high frequency input signal.

Divide ratio control inputs SW1 and SW2 select the required divide ratio of

÷64, ÷128, or ÷256.

MECL PLL COMPONENTS

An external load resistor is required to terminate the output. A 1.2 kΩ

resistor is recommended to achieve a 1.6 V output swing, when dividing a

÷64/128/256 PRESCALER

1.1 GHz input signal by the minimum divide ratio of 64, assuming a 12 pF

load. Output current can be minimized dependent on conditions such as

output frequency, capacitive load being driven, and output voltage swing

SEMICONDUCTOR

TECHNICAL DATA

required. Typical values for load resistors are included in the V

specification for various divide ratios at 2.8 GHz input frequency.

out

• 2.8 GHz Toggle Frequency

• Supply Voltage 4.5 to 5.5 V

• Low Power 9mA Typical at V

= 5.0 V

• Operating Temperature Range of –40 to 85°C

D SUFFIX

PLASTIC PACKAGE

CASE 751

FUNCTIONAL TABLE

(SO–8)

SW1

SW2

Divide Ratio

128

256

NOTE: SW1 & SW2: H = V , L = Open.

MAXIMUM RATINGS

P SUFFIX

PLASTIC PACKAGE

CASE 626

Characteristic

Symbol

Range

–0.5 to 7.0

–40 to 85

–65 to 150

4.0

Unit

Vdc

°C

Power Supply Voltage, Pin 2

Operating Temperature Range

Storage Temperature Range

Maximum Output Current, Pin 4

NOTE: ESD data available upon request.

stg

°C

PIN CONNECTIONS

SW2

SW1

Gnd

OUT

(Top View)

ORDERING INFORMATION

Operating

Temperature Range

Device

Package

MC12079D

MC12079P

SO–8

= – 40° to +85°C

Plastic

Motorola, Inc. 1997

Rev 3

12 3 4

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