ASM3I2769AF-08TT datasheet, PDF

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ASM3I2769AF-08TT: DescriptionClock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8; CategoryThe embedded processor and controller Microcontrollers and processors; File Size360KB，12 Pages; ManufacturerPulseCore Semiconductor Corporation; Environmental Compliance

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ASM3I2769AF-08TT Overview

Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8

ASM3I2769AF-08TT Parametric

Parameter Name	Attribute value
Is it Rohs certified?	conform to
package instruction	ROHS COMPLIANT, TSSOP-8
Reach Compliance Code	unknown
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	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	13 MHz
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Master clock/crystal nominal frequency	13 MHz
Certification status	Not Qualified
Maximum seat height	1.1 mm
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	INDUSTRIAL
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
Base Number Matches	1

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ASM3P2769A

Low Power Peak EMI

Reducing Solution

Features

Generates an EMI optimized clock signal at the

output.

Integrated loop filter components.

Operates with a 3.3V / 2.5V Supply

Operating current less than 4mA.

Low power CMOS design.

Input frequency range: 6MHz to 12MHz for 2.5V

6MHz to 13MHz for 3.3V

Generates a 1X low EMI spread spectrum clock of

the input frequency.

Frequency deviation: ±1% @ 10MHz

Available in 6-pin TSOT-23, 8-pin SOIC and

8-pin TSSOP Packages.

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

The ASM3P2769A is targeted towards all portable

devices with very low power requirements like MP3

players and digital still cameras.

Product 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.

Key Specifications

Description

Supply voltages

Cycle-to-Cycle Jitter

Output Duty Cycle

Modulation Rate Equation

Frequency Deviation

Specification

VDD = 3.3V / 2.5V

200pS (Max)

45/55%

/256

±1% @ 10MHz

Block Diagram

VDD

Modulation

XIN

Crystal

Oscillator

XOUT

Frequency

Divider

Feedback

Divider

PLL

Phase

Detector

Loop

Filter

VCO

Output

Divider

ModOUT

VSS

JANUARY 2010 – Rev. 2

Publication Order Number:

ASM3P2769/D

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Description	Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8	Clock Generator, 13MHz, CMOS, PDSO6, GREEN, TSOT-23, 6 PIN	Clock Generator, 13MHz, CMOS, PDSO6, GREEN, TSOT-23, 6 PIN	Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8	Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, SOIC-8	Clock Generator, 13MHz, CMOS, PDSO8, GREEN, SOIC-8	Clock Generator, 13MHz, CMOS, PDSO8, GREEN, TSSOP-8	Clock Generator, 13MHz, CMOS, PDSO8, GREEN, SOIC-8	Clock Generator, 13MHz, CMOS, PDSO6, ROHS COMPLIANT, TSOT-23, 6 PIN	Clock Generator, 13MHz, CMOS, PDSO8, ROHS COMPLIANT, TSSOP-8
Is it Rohs certified?	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to	conform to
package instruction	ROHS COMPLIANT, TSSOP-8	GREEN, TSOT-23, 6 PIN	GREEN, TSOT-23, 6 PIN	ROHS COMPLIANT, TSSOP-8	ROHS COMPLIANT, SOIC-8	GREEN, SOIC-8	GREEN, TSSOP-8	GREEN, SOIC-8	ROHS COMPLIANT, TSOT-23, 6 PIN	ROHS COMPLIANT, TSSOP-8
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
Other features	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ	ALSO OPERATES WITH 2.5V SUPPLY AT 12MHZ
JESD-30 code	R-PDSO-G8	R-PDSO-G6	R-PDSO-G6	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G8	R-PDSO-G6	R-PDSO-G8
length	4.4 mm	2.9 mm	2.9 mm	4.4 mm	4.9 mm	4.9 mm	4.4 mm	4.9 mm	2.9 mm	4.4 mm
Number of terminals	8	6	6	8	8	8	8	8	6	8
Maximum operating temperature	85 °C	70 °C	85 °C	85 °C	85 °C	85 °C	85 °C	70 °C	70 °C	70 °C
Minimum operating temperature	-40 °C	-	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-	-	-
Maximum output clock frequency	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	TSSOP	VSSOP	VSSOP	TSSOP	SOP	SOP	TSSOP	SOP	VSSOP	TSSOP
Package shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	NOT SPECIFIED	260	260	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	260	NOT SPECIFIED
Master clock/crystal nominal frequency	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz	13 MHz
Certification status	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	1.1 mm	1 mm	1 mm	1.1 mm	1.75 mm	1.75 mm	1.1 mm	1.75 mm	1 mm	1.1 mm
Maximum supply voltage	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V	2.7 V
Nominal supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	YES	YES	YES	YES	YES	YES	YES	YES	YES
technology	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	COMMERCIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	0.65 mm	0.95 mm	0.95 mm	0.65 mm	1.27 mm	1.27 mm	0.65 mm	1.27 mm	0.95 mm	0.65 mm
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED	40	40	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	NOT SPECIFIED	40	NOT SPECIFIED
width	3 mm	1.6 mm	1.6 mm	3 mm	3.91 mm	3.91 mm	3 mm	3.91 mm	1.6 mm	3 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER	CLOCK GENERATOR, OTHER
Base Number Matches	1	1	1	1	1	1	1	1	1	1

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