900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Integrated Device Technology Electronic Components Datasheet

ICS181-52 Datasheet

LOW EMI CLOCK GENERATOR

No Preview Available !

DATASHEET
LOW EMI CLOCK GENERATOR
ICS181-52
Description
The ICS181-52 generates a low EMI output clock from
a clock or crystal input. The device uses IDT’s
proprietary mix of analog and digital Phase Locked
Loop (PLL) technology to spread the frequency
spectrum of the output, thereby reducing the frequency
amplitude peaks by several dB.
The ICS181-52 offers center spread selection of
+/-0.625% and +/-1.875%. Refer to the MK1714-01/02
for the widest selection of input frequencies and
multipliers.
IDT offers a complete line of EMI reducing clock
generators. Consult us when you need to remove
crystals and oscillators from your board.
Features
Pin and function compatible to Cypress W181-52
Packaged in 8-pin SOIC
Provides a spread spectrum output clock
Accepts a clock input and provides same frequency
dithered output
Input frequency of 28 to 48 MHz for Clock input
Peak reduction by 7dB - 14dB typical on 3rd - 19th
odd harmonics
Spread percentage selection for +/-0.625% and
+/-1.875%
Operating voltage of 3.3 V and 5 V
Advanced, low-power CMOS process
Block Diagram
VDD
FS1
SSON#
SS%
X1/CLKIN
X2
Clock Buffer/
Crystal
Oscillator
PLL Clock
Synthesis
and Spread
Spectrum
Circuitry
CLK
GND
IDT™ / ICS™ LOW EMI CLOCK GENERATOR
1
ICS181-52 REV C 051310


Integrated Device Technology Electronic Components Datasheet

ICS181-52 Datasheet

LOW EMI CLOCK GENERATOR

No Preview Available !

ICS181-52
LOW EMI CLOCK GENERATOR
SSCG
Pin Assignment
Spread Spectrum Select Table
X1/CLKIN
X2
GND
SS%
1
2
3
4
8 SSON#
7 FS1
6 VDD
5 CLKOUT
8-pin (150 mil) SOIC
SS%
(Pin 4)
0
1
Spread
Direction
Center
Center
Spread
Percentage (%)
+/-0.625%
+/1.875%
0 = connect to GND
1 = connect directly to VDD
Note: SS% pin has an internal pull-up resistor
Frequency Range Selection Table
FS1 Frequency
(Pin 7) Range Selection
MHz
0 28-38
1 38-48
Pin Descriptions
Pin
Number
1
2
3
4
5
6
7
8
Pin
Name
X1/CLKIN
X2
GND
SS%
CLKOUT
VDD
FS1
SSON#
Pin Type
Pin Description
Input
Output
Power
Input
Output
Power
Input
Input
Crystal or Clock Input.
Crystal output. Float for a clock input.
Connect to ground.
Select pin for spread amount. See table above. Internal pull-up resistor.
Spread spectrum clock output per table above.
Connect to 3.3 V or 5 V.
Select pin for input frequency. See table above. Internal pull-up resistor.
Spread Spectrum Control. This pin enables spread spectrum when low.
Internal pull-down resistor.
IDT™ / ICS™ LOW EMI CLOCK GENERATOR
2
ICS181-52 REV C 051310


Part Number ICS181-52
Description LOW EMI CLOCK GENERATOR
Maker IDT
Total Page 7 Pages
PDF Download

ICS181-52 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 ICS181-51 Low EMI Clock Generator
Integrated Circuit Systems
2 ICS181-52 Low EMI Clock Generator
Integrated Circuit Systems
3 ICS181-52 LOW EMI CLOCK GENERATOR
IDT
4 ICS181-53 Low EMI Clock Generator
Integrated Circuit Systems





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy