LTC6900IS5 datasheet, PDF - EEWORLD Datasheet

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LTC6900IS5: DescriptionSPECIALTY ANALOG CIRCUIT, PDSO5; CategoryAnalog mixed-signal IC The signal circuit; File Size184KB，12 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html

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LTC6900IS5 Overview

SPECIALTY ANALOG CIRCUIT, PDSO5

LTC6900IS5 Parametric

Parameter Name	Attribute value
Brand Name	Linear Technology
Is it Rohs certified?	incompatible
Maker	Linear ( ADI )
Parts packaging code	SOT
package instruction	VSSOP, TSOP5/6,.11,37
Contacts	5
Manufacturer packaging code	S5
Reach Compliance Code	not_compliant
ECCN code	EAR99
Other features	IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PDSO-G5
JESD-609 code	e0
length	2.9 mm
Humidity sensitivity level	1
Number of functions	1
Number of terminals	5
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	VSSOP
Encapsulate equivalent code	TSOP5/6,.11,37
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	235
power supply	3/5 V
Certification status	Not Qualified
Maximum seat height	1 mm
Maximum supply current (Isup)	1.2 mA
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.7 V
Nominal supply voltage (Vsup)	3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.95 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	20
width	1.6 mm

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LTC6900

Low Power, 1kHz to 20MHz

Resistor Set SOT-23 Oscillator

FEATURES

DESCRIPTIO

One External Resistor Sets the Frequency

1kHz to 20MHz Frequency Range

500µA Typical Supply Current, V

= 3V, 3MHz

Frequency Error

≤1.5%

Max, 5kHz to 10MHz

= 25°C)

Frequency Error

≤

2% Max, 5kHz to 10MHz

= 0°C to 70°C)

±40ppm/°C

Temperature Stability

0.04%/V Supply Stability

50%

±1%

Duty Cycle 1kHz to 2MHz

50%

±5%

Duty Cycle 2MHz to 10MHz

Fast Start-Up Time: 50µs to 1.5ms

100Ω CMOS Output Driver

Operates from a Single 2.7V to 5.5V Supply

Low Profile (1mm) ThinSOT

Package

The LTC

6900 is a precision, low power oscillator that is

easy to use and occupies very little PC board space. The

oscillator frequency is programmed by a single external

resistor (R

SET

). The LTC6900 has been designed for high

accuracy operation (≤1.5% frequency error) without the

need for external trim components.

The LTC6900 operates with a single 2.7V to 5.5V power

supply and provides a rail-to-rail, 50% duty cycle square

wave output. The CMOS output driver ensures fast rise/fall

times and rail-to-rail switching. The frequency-setting

resistor can vary from 10kΩ to 2MΩ to select a master

oscillator frequency between 100kHz and 20MHz (5V

supply). The three-state DIV input determines whether the

master clock is divided by 1, 10 or 100 before driving the

output, providing three frequency ranges spanning 1kHz

to 20MHz (5V supply). The LTC6900 features a proprietary

feedback loop that linearizes the relationship between

SET

and frequency, eliminating the need for tables to

calculate frequency. The oscillator can be easily pro-

grammed using the simple formula outlined below:



20k



OSC

10MHz

• 





•

SET





100, DIV Pin



= 

10, DIV Pin

Open



1 DIV Pin

GND



APPLICATIO S

Portable and Battery-Powered Equipment

PDAs

Cell Phones

Low Cost Precision Oscillator

Charge Pump Driver

Switching Power Supply Clock Reference

Clocking Switched Capacitor Filters

Fixed Crystal Oscillator Replacement

Ceramic Oscillator Replacement

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

TYPICAL APPLICATIO

0.1µF

10k

≤

SET

≤

SET

vs Desired Output Frequency

10000

Clock Generator

1kHz

≤

OSC

≤

20MHz

5V, N = 100

N=1

1000

GND

SET

DIV

SET

(kΩ)

OUT

LTC6900

÷100

100

OPEN, N = 10

OSC

= 10MHz •

(

20k

N • R

SET

)

6900 TA01

100k

10M

10k

DESIRED OUTPUT FREQUENCY (Hz)

100M

÷10

÷1

6900 F02

6900f

LTC6900IS5 Related Products

	LTC6900IS5	LTC6900CS5
Description	SPECIALTY ANALOG CIRCUIT, PDSO5	SPECIALTY ANALOG CIRCUIT, PDSO5
Brand Name	Linear Technology	Linear Technology
Is it Rohs certified?	incompatible	incompatible
Maker	Linear ( ADI )	Linear ( ADI )
Parts packaging code	SOT	SOT
package instruction	VSSOP, TSOP5/6,.11,37	PLASTIC, SOT-23, 5 PIN
Contacts	5	5
Manufacturer packaging code	S5	S5
Reach Compliance Code	not_compliant	not_compliant
ECCN code	EAR99	EAR99
Other features	IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY	IT CAN ALSO OPERATE FROM A 5V NOMINAL SUPPLY
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT	ANALOG CIRCUIT
JESD-30 code	R-PDSO-G5	R-PDSO-G5
JESD-609 code	e0	e0
length	2.9 mm	2.9 mm
Humidity sensitivity level	1	1
Number of functions	1	1
Number of terminals	5	5
Maximum operating temperature	85 °C	70 °C
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	VSSOP	VSSOP
Encapsulate equivalent code	TSOP5/6,.11,37	TSOP5/6,.11,37
Package shape	RECTANGULAR	RECTANGULAR
Package form	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	235	235
power supply	3/5 V	3/5 V
Certification status	Not Qualified	Not Qualified
Maximum seat height	1 mm	1 mm
Maximum supply current (Isup)	1.2 mA	1.2 mA
Maximum supply voltage (Vsup)	5.5 V	5.5 V
Minimum supply voltage (Vsup)	2.7 V	2.7 V
Nominal supply voltage (Vsup)	3 V	3 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	INDUSTRIAL	COMMERCIAL
Terminal surface	Tin/Lead (Sn/Pb)	Tin/Lead (Sn/Pb)
Terminal form	GULL WING	GULL WING
Terminal pitch	0.95 mm	0.95 mm
Terminal location	DUAL	DUAL
Maximum time at peak reflow temperature	20	20
width	1.6 mm	1.6 mm

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