ASM3P2769AG-08TT datasheet, PDF

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ASM3P2769AG-08TT: DescriptionLow Power Peak EMI Reducing Solution; CategoryThe embedded processor and controller Microcontrollers and processors; File Size134KB，10 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn; Environmental Compliance

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ASM3P2769AG-08TT Overview

Low Power Peak EMI Reducing Solution

ASM3P2769AG-08TT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
Maker	ON Semiconductor
Parts packaging code	SOIC
package instruction	TSSOP, TSSOP8,.25
Contacts	8
Reach Compliance Code	compli
ECCN code	EAR99
Other features	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ
JESD-30 code	R-PDSO-G8
length	4.4 mm
Number of terminals	8
Maximum operating temperature	70 °C
Minimum operating temperature
Maximum output clock frequency	13 MHz
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP8,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
power supply	2.5/3.3 V
Master clock/crystal nominal frequency	13 MHz
Certification status	Not Qualified
Maximum seat height	1.1 mm
Maximum slew rate	0.01 mA
Maximum supply voltage	3.6 V
Minimum supply voltage	2.7 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	COMMERCIAL
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER

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ASM3P2769A

Low Power Peak EMI

Reducing Solution

Description

The ASM3P2769A is a versatile spread spectrum frequency

modulator designed specifically for a wide range of clock frequencies.

The ASM3P2769A reduces electromagnetic interference (EMI) at the

clock source, allowing system wide reduction of EMI of all clock

dependent signals. The ASM3P2769A allows significant system cost

savings by reducing the number of circuit board layers, ferrite beads

and shielding that are traditionally required to pass EMI regulations.

The ASM3P2769A uses the most efficient and optimized

modulation profile approved by the FCC and is implemented by using

a proprietary all digital method.

The ASM3P2769A modulates the output of a single PLL in order to

“spread” the bandwidth of a synthesized clock, and more importantly,

decreases the peak amplitudes of its harmonics. This results in

significantly lower system EMI compared to the typical narrow band

signal produced by oscillators and most frequency generators.

Lowering EMI by increasing a signal’s bandwidth is called ‘spread

spectrum clock generation.’

Applications

http://onsemi.com

TSOT−6

O SUFFIX

CASE 419AF

TSSOP−8

T SUFFIX

CASE 948AL

SOIC−8

S SUFFIX

CASE 751BD

PIN CONFIGURATIONS

XOUT

XIN / CLKIN

VSS

ModOUT

VDD

The ASM3P2769A is targeted towards all portable devices with

very low power requirements like MP3 players and digital still

cameras.

Features

6−Pin TSOT−23 Package

(Top View)

•

Generates an EMI Optimized Clock Signal at the Output

Integrated Loop Filter Components

Operates with a 3.3 V / 2.5 V Supply

Operating Current less than 4 mA

Low Power CMOS Design

Input Frequency Range:

6 MHz to 12 MHz for 2.5 V

6 MHz to 13 MHz for 3.3 V

Generates a 1X Low EMI Spread Spectrum Clock of the Input

Frequency

Frequency Deviation:

±1%

@ 10 MHz

Available in 6−pin TSOT−23, 8−pin SOIC and 8−pin TSSOP

Packages

These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

XIN / CLKIN

XOUT

VDD

ModOUT

VSS

8−Pin SOIC and TSSOP Packages

(Top View)

KEY SPECIFICATIONS

Description

Supply Voltages

Cycle−to−Cycle Jitter

Output Duty Cycle

Modulation Rate Equation

Frequency Deviation

Specification

VDD = 3.3 V / 2.5 V

200 pS (Max)

45/55%

/256

±1%

@ 10 MHz

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

Semiconductor Components Industries, LLC, 2011

August, 2011

−

Rev. 3

Publication Order Number:

ASM3P2769A/D

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