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參數(shù)資料
| 型號： | DS8617 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 111K |
| 代理商： | DS8617 |
TL/F/5240
D
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
at a high TTL level and division by N
a
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
unregulated 5.5V to 13.5V source or regulated 5V
g
10%
source. Unregulated operation is obtained by connecting V
S
to the source with V
REG
open. Regulated operation is ob-
tained by connecting both V
S
and V
REG
to the supply
source.
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.
Features
Y
Input frequency: 130 MHz (-4); 225 MHz (-2)
Y
Low power: 10 mA (-4, -2)
Y
Input sensitivity: 100 mVrms (-4); 40 mVrms (-2)
Y
Pin compatible with Motorola MC12015-16 prescalers
Y
Unregulated/regulated power supply option
Logic and Connection Diagrams
Generalized
d
N/N
a
1
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
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS8617M-4 | Prescaler/Frequency Divider |
| DS8617N-2 | Prescaler/Frequency Divider |
| DS8617N-3 | Prescaler/Frequency Divider |
| DS8617N-4 | Prescaler/Frequency Divider |
| DS8621N | Prescaler/Frequency Divider |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS8617M-4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
| DS8617N/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
| DS8617N/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
| DS8617N-2 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
| DS8617N-2/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Prescaler/Frequency Divider |
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