DS8615

更新时间： 2024-11-23 22:40:39

品牌	Logo	应用领域
美国国家半导体 - NSC		预分频器
页数	文件大小	规格书
7页	121K
描述
130/225 MHz Low Power Dual Modulus Prescalers

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DS8615 数据手册

July 1992

DS8615/DS8616 130/225 MHz

Low Power Dual Modulus Prescalers

General Description

The DS8615 series products are low power dual modulus

prescalers which divide by 32/33 and 40/41 respectively.

The modulus control (MC) input selects division by N when

The device can be used in phase-locked loop applications

such as FM radio or other communications bands to pre-

scale the input frequency down to a more usable level. A

digital frequency display system can also be derived sepa-

rately or in conjunction with a phase-locked loop, and it can

extend the useful range of many inexpensive frequency

counters to 225 MHz.

at a high TTL level and division by N

1 when at a low TTL

level. The clock inputs are buffered, providing 40/100

mVrms input sensitivity. The two outputs provide the user

the option to wire either a totem-pole or open-collector out-

put structure. Additionally, the user can wire a resistor be-

tween the two output pins to minimize edge transition emis-

sions. The outputs are designed to drive positive edge trig-

gered PLLs. These products can be operated from either an

Features

Input frequency: 130 MHz (-4); 225 MHz (-2)

Low power: 10 mA (-4, -2)

unregulated 5.5V to 13.5V source or regulated 5V 10%

source. Unregulated operation is obtained by connecting V

Input sensitivity: 100 mVrms (-4); 40 mVrms (-2)

Pin compatible with Motorola MC12015-16 prescalers

to the source with V

open. Regulated operation is ob-

to the supply

REG

Unregulated/regulated power supply option

tained by connecting both V and V

source.

REG

Logic and Connection Diagrams

Generalized

N/N

TL/F/5240–1

Dual-In-Line Package

TL/F/5240–2

Top View

Order Number DS8615N or DS8616N (-4, -2)

See NS Package Number N08E

1995 National Semiconductor Corporation

TL/F/5240

RRD-B30M105/Printed in U. S. A.

12 3 4 5 6 7

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与DS8615相关器件

型号	品牌	获取价格	描述	数据表
DS8615M-4	TI	获取价格	DS86 SERIES, PRESCALER, PDSO8, 0.150 INCH, PLASTIC, SOP-8
DS8615M-4	NSC	获取价格	IC DS86 SERIES, PRESCALER, PDSO8, 0.150 INCH, PLASTIC, SOP-8, Prescaler/Multivibrator
DS8615N	TI	获取价格	IC,PRESCALER,DIP,8PIN,PLASTIC
DS8615N	NSC	获取价格	IC,PRESCALER,DIP,8PIN,PLASTIC
DS8615N/A+	ETC	获取价格	Prescaler/Frequency Divider
DS8615N/B+	TI	获取价格	IC,PRESCALER,DIP,8PIN,PLASTIC
DS8615N-2	NSC	获取价格	IC DS86 SERIES, DUAL PRESCALER, PDIP8, PLASTIC, DIP-8, Prescaler/Multivibrator
DS8615N-2	TI	获取价格	DS86 SERIES, DUAL PRESCALER, PDIP8, PLASTIC, DIP-8
DS8615N-2/A+	TI	获取价格	IC,PRESCALER,DIP,8PIN,PLASTIC
DS8615N-2/B+	TI	获取价格	IC,PRESCALER,DIP,8PIN,PLASTIC