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参数资料
| 型号： | ICS1493K-17LF |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 48 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC20 |
| 封装： | 4 X 4 MM, ROHS COMPLIANT, QFN-20 |
| 文件页数： | 1/11页 |
| 文件大小： | 217K |
| 代理商： | ICS1493K-17LF |
ICS1493-17
MDS 1493-17 A
1
Revision 101005
Integrated Circuit Sy stems
● 5 25 Race Street, San Jo se, CA 9 512 6 ● tel (40 8) 2 97-12 01● www.ics t.co m
Clock Synthesizer for Portable Systems
PRELIM INAR Y INFORMA T ION
Description
The ICS1493-17 is a low-power, low-jitter clock
synthesizer designed to replace multiple crystals and
oscillators in portable audio/video systems. The device
generates a 37 MHz processor clock, a 48 MHz USB
clock, a fixed 22.5792 MHz audio clock, a selectable
24.576 MHz or 22.5792 MHz audio clock, and a 27MHz
reference clock for video. Using ICS’ proprietary mix of
analog and digital Phase-Locked Loop (PLL)
technology, the device spreads the frequency spectrum
of the 37 MHz output, reducing the peak amplitude of
by up to 16 dB. An output enable (OE) pin lowers the
chip power consumption while tri-stating all outputs.
Features
Extremely low operating current (11 mA)
Packaged in 20-pin QFN (Pb-free)
Input crystal or clock frequency of 27 MHz
Output reference frequency of 27 MHz
Fixed output frequencies of 37 MHz, 48 MHz and
22.5792 MHz
Selectable output frequency of either 22.5792 MHz
or 24.576 MHz
Configurable spread spectrum on 37 MHz output
Operating core voltage of 1.8 V
Output voltage of 1.8 V or 2.5 V
Advanced, low-power CMOS process
Block Diagram
X1
X2
PLL1
(Spread)
PLL2
Crystal
Oscillator/
Clock
Buffer
27 MHz
clock or
crystal input
Optional tuning
capacitors
VDD
GND
27M
37M
3
5
PLL3
22/24M
PLL4
22M
SCK
48M
IIC
Control
Logic
SDATA
OE
VDDO
2
相关PDF资料 |
PDF描述 |
|---|---|
| ICS1493K-17LFT | 48 MHz, PROC SPECIFIC CLOCK GENERATOR, QCC20 |
| ICS1522MLF | 230 MHz, VIDEO CLOCK GENERATOR, PDSO24 |
| ICS1524AMT | 250 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS1524AM | 250 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS1524AMT | 250 MHz, OTHER CLOCK GENERATOR, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS1493K-17LFT | 功能描述:IC CLOCK SYNTHESIZER 20-VFQFPN RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:带卷 (TR) |
| ICS1494M-XXX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC |
| ICS1494N-XXX | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC |
| ICS1522 | 制造商:ICS 制造商全称:ICS 功能描述:User-Programmable Video Clock Generator/ Line-Locked Clock Regenerator |
| ICS1522M | 制造商:ICS 制造商全称:ICS 功能描述:User-Programmable Video Clock Generator/ Line-Locked Clock Regenerator |
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