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EEPROM

Xin/CLK

Xout

V

DD

GND

Vctr

V

DDOUT

VCXO

XO

LVCMOS

Y2

Y1

Y3

LV

CMOS

Pdiv1

10-Bit

Y4

Y5

Y6

Y7

Y8

Y9

LV

CMOS

Pdiv9

7-Bit

Pdiv8

7-Bit

LV

CMOS

LV

CMOS

Pdiv7

7-Bit

Pdiv6

7-Bit

LV

CMOS

LV

CMOS

Pdiv5

7-Bit

Pdiv4

7-Bit

LV

CMOS

LV

CMOS

Pdiv3

7-Bit

Pdiv2

7-Bit

LV

CMOS

Programming

and

SDA/SCL

Register

InputClock

PLL Bypass

PLL 1

withSSC

PLL Bypass

PLL 2

withSSC

PLL Bypass

PLL 3

withSSC

PLL Bypass

PLL 4

withSSC

S0

S1/SDA

S2/SCL

ABSOLUTE MAXIMUM RATINGS

CDCE949

CDCEL949

SCAS844 – JUNE 2007

FUNCTIONAL BLOCK DIAGRAM

over operating free-air temperature range (unless otherwise noted)

(1)

VALUE

UNIT

Supply voltage range

–0.5 to 2.5

V

V

V

20

mA

Continuous output current

50

mA

Storage temperature range

–65 to 150

°C

Maximum junction temperature

125

°C

(1)

Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings

only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating

conditions is not implied. Exposure to absolute–maximum–rated conditions for extended periods may affect device reliability.

(2)

The input and output negative voltage ratings may be exceeded if the input and output clamp–current ratings are observed.

3

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