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CDCE949 Datasheet(PDF) 3 Page - Texas Instruments

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Part # CDCE949
Description  Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

CDCE949 Datasheet(HTML) 3 Page - Texas Instruments

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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
VDD
Supply voltage range
–0.5 to 2.5
V
VI
Input voltage range(2)
–0.5 to VDD + 0.5
V
VO
Output voltage range(2)
–0.5 to VDDOUT + 0.5
V
II
Input current (Vi < 0, Vi > VDD)
20
mA
IO
Continuous output current
50
mA
Tstg
Storage temperature range
–65 to 150
°C
TJ
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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