M908-02I075.0000 datasheet, PDF

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M908-02I075.0000: DescriptionClock Generator, 75MHz, CQCC36, 9 X 9 MM, CERAMIC, LCC-36; CategoryThe embedded processor and controller Microcontrollers and processors; File Size226KB，6 Pages; ManufacturerIDT (Integrated Device Technology)

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M908-02I075.0000 Overview

Clock Generator, 75MHz, CQCC36, 9 X 9 MM, CERAMIC, LCC-36

M908-02I075.0000 Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	LCC
package instruction	QCCN,
Contacts	36
Reach Compliance Code	compliant
ECCN code	EAR99
JESD-30 code	S-CQCC-N36
JESD-609 code	e0
length	8.99 mm
Number of terminals	36
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	75 MHz
Package body material	CERAMIC, METAL-SEALED COFIRED
encapsulated code	QCCN
Package shape	SQUARE
Package form	CHIP CARRIER
Peak Reflow Temperature (Celsius)	240
Master clock/crystal nominal frequency	19.44 MHz
Certification status	Not Qualified
Maximum seat height	3.1 mm
Maximum supply voltage	3.465 V
Minimum supply voltage	3.135 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	TIN LEAD
Terminal form	NO LEAD
Terminal pitch	0.635 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	20
width	8.99 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, OTHER

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Integrated

Circuit

Systems, Inc.

Preliminary Information

M908-02

VCSO B

ASED

LOCK

ENERATOR

SSIGNMENT

(9 x 9 mm SMT)

XTAL_1 / REF_IN

GND

nFOUT5

FOUT5

nFOUT4

FOUT4

nFOUT3

FOUT3

VCC

XTAL_2

FOUT6

nFOUT6

FOUT7

nFOUT7

VCC

DNC

ENERAL

ESCRIPTION

The M908-02 is a PLL (Phase Locked Loop) based

clock generator that uses an

internal VCSO (Voltage Controlled

SAW Oscillator) to produce a very

low jitter output clock. From the

M908-02-155.5200

, an output clock

frequency of

155.52

MHz is provided

from eight LVPECL clock output

pairs. (Other frequencies are available; consult factory.)

The accuracy of the output frequency is assured by the

internal PLL that phase-locks the internal VCSO to the

reference input frequency (

19.44

MHz for the

M908-02-155.5200

). The input reference can either be an

external crystal, utilizing the internal crystal oscillator,

or a stable external clock source such as a packaged

crystal oscillator.

M908-02

(Top View)

nFOUT2

FOUT2

nFOUT1

FOUT1

GND

nFOUT0

FOUT0

VCC

GND

EATURES

◆

Output clock frequency range 75MHz to 175MHz

(Consult factory for frequency availability)

◆

Eight identical LVPECL output pairs

◆

Jitter 0.7ps rms (at 155.52MHz, over 12kHz-20MHz), typ.

◆

Ideal for OC-48/STM-16 clock reference

◆

Output-to-output skew < 100ps

◆

External XTAL or LVCMOS reference input

◆

Integrated SAW (surface acoustic wave) delay line

◆

Single 3.3V power supply

◆

Small 9 x 9 mm SMT (surface mount) package

Figure 1: Pin Assignment

Example Output Frequency Configurations

(

M908-02-155.5200

)

VCSO and

Ref Clock

PLL

Output

Frequency Multiplication

Frequency

(MHz)

Ratio

(MHz)

19.44

155.52

Application

GND

OP_IN

nOP_OUT

nVC

OP_OUT

nOP_IN

OC-48/STM-16

Table 1: Example Output Frequency Configurations

IMPLIFIED

LOCK

IAGRAM

M908-02-155.52 (Other Frequencies Available)

VSCO

External

Crystal

Reference

Clock Input

(19.44MHz)

XTAL

OSC

Frequency

Multiplying

PLL

LVPECL

Output

Clock Pairs

(155.52MHz)

External Loop Filter

Figure 2: Simplified Block Diagram

M908-02 Datasheet Rev 0.4

M908-02 VCSO Based Clock Generator

Revised 30Jul2004

●

I n t e g r a t e d C i r c u i t S y s t e m s, I n c .

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w w w. i c s t . c o m

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tel (508) 852-5400

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