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| 型号： | ICS91720YG-T |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 91720 SERIES, PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| 封装： | 4.40 MM, 0.65 MM PITCH, MO-153, TSSOP-8 |
| 文件页数： | 1/11页 |
| 文件大小： | 91K |
| 代理商： | ICS91720YG-T |
Integrated
Circuit
Systems, Inc.
ICS91720
0698D—10/05/04
Block Diagram
Pin Configuration
Features:
ICS91720 is a Spread Spectrum Clock targeted for
Mobile PC and LCD panel applications that
generates an EMI-optimized clock signal (EMI peak
reduction of 7-14 dB on 3rd-19th harmonics) through
use of Spread Spectrum techniques.
ICS91720 focuses on the lower input frequency
range of 14.318 to 80.00 MHz with a spread
modulation of 20kHz to 40kHz.
Specifications:
Supply Voltages: VDD = 3.3V ±0.3V
Frequency range: 14.318 MHz
≤ Fin ≥ 80 MHz
Cyc to Cyc jitter: <150ps
Output duty cycle 45-55%
Guarantees +85°C operational condition.
8-pin SOIC/TSSOP
Reference input
Low EMI, Spread Modulating, Clock Generator
Functionality
CLK
CL
REFOUT
KOUT
OUT
PD#
CLKIN
PLL1
Spread
Spectr
Spectrum
um
SD
SDATA
SCLK
FS_IN0:1
Control
Logic
Config.
Reg.
CLKIN 18 PD#*
VDD 27 SCLK
GND 36 SDATA
**CLKOUT/FS_IN0 45 REF_OUT/FS_IN1*
** Internal Pull-Down Resistor
8 Pin SOIC/TSSOP
* Internal Pull-Up Resistor
FSIN_1 FSIN_0
0
-0.8 down spread
0
1
-1.00 down spread
1
0
27.00MHz in --> 27.00MHz out
-1.25 down spread
1
-0.8 down spread
48.00MHz in -->48.00 MHz out
MHz
Spread % default
14.318 MHz in --> 27MHz out
14.318MHz -->14.318MHz out
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