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NE568AN IC产品库存

NE568AN:全新原装
库存编号:
18426
产品型号:
NE568AN
厂商:
Philips
封装:
DIP-20
库存数量:
2137
参考价:
65.00
起订量:
10
点击率:
2089
PDF搜索:
下载
立即订购:
NE568AN
联系电话:
0755-82516777

NE568AN 产品描述

全新原装

NE568AN 产品简介

150MHz 6V 400mW
DESCRIPTION
The NE568A is a monolithic phase-locked loop (PLL) which
operates from 1Hz to frequencies in excess of 150MHz and features
an extended supply voltage range and a lower temperature
coefficient of the VCO center frequency in comparison with its
predecessor, the NE 568. The NE568A is function and
pin-compatible with the NE568, requiring only minor changes in
peripheral circuitry (see Figure 3). Temperature compensation
network is different, no resistor on Pin 12, needs to be grounded and
Pin 13 has a 3.9kW resistor to ground. Timing cap, C2, is different
and for 70MHz operation with temperature compensation network
should be 16pF, not 34pF as was used in the NE568. The NE568A
has the following improvements: ESD protected; extended VCC
range from 4.5V to 5.5V; operating temperature range -55 to 125°C
(see Signetics Military 568A data sheet); less layout sensitivity; and
lower TC of VCO (center frequency). The integrated circuit consists
of a limiting amplifier, a current-controlled oscillator (ICO), a phase
detector, a level shift circuit, V/I and I/V converters, an output buffer,
and bias circuitry with temperature and frequency compensating
characteristics. The design of the NE568A is particularly well-suited
for demodulation of FM signals with extremely large deviation in
systems which require a highly linear output. In satellite receiver
applications with a 70MHz IF, the NE568A will demodulate ±20%
deviations with less than 1.0% typical non-linearity. In addition to
high linearity, the circuit has a loop filter which can be configured
with series or shunt elements to optimize loop dynamic
performance. The NE568A is available in 20-pin dual in-line and
20-pin SO (surface mounted) plastic packages.>

NE568AN 产品图片

NE568AN 相关库存

型号 厂商 封装 描述 资料 采购
NE568AN Philips DIP-20 全新原装
NE568AD Philips SOP20 150MHz phase-locked loop


NE568AN 相关产品资料

型号 厂商 描述 文件大小 下载
AN1882 : The NE568A As A Wideband FM Modulator 0
NE568A SA568A PHILIPS 262


NE568AN 论坛相关



联系方式

联系时间:每周一至周五
   上午9.00至11:45,
   下午13:30至17.50
联系电话:
   0755-82516668,82516777
联系传真:
   0755-82516669
业务联系QQ:
   QQ一:882222 ,QQ二:308917
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