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CDCE949PWR датащи(PDF) 4 Page - Texas Instruments

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номер детали CDCE949PWR
подробное описание детали  Programmable 4-PLL VCXO Clock Synthesizer with 1.8V, 2.5V and 3.3V LVCMOS Outputs
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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CDCE949PWR датащи(HTML) 4 Page - Texas Instruments

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THERMAL RESISTANCE FOR TSSOP (PW) PACKAGE
(1)
RECOMMENDED OPERATING CONDITIONS
RECOMMENDED CRYSTAL/VCXO SPECIFICATIONS
(1)
EEPROM SPECIFICATION
CDCE949
CDCEL949
SCAS844 – JUNE 2007
AIRFLOW
TSSOP24
PARAMETER
(lfm)
°C/W
0
85
150
80
TJA
Thermal Resistance Junction to Ambient
250
78
500
76
TJC
Thermal Resistance Junction to Case
26
(1)
The package thermal impedance is calculated in accordance with JESD 51 and JEDEC2S2P (high-k board).
MIN
NOM
MAX
UNIT
VDD
Device supply voltage
1.7
1.8
1.9
V
CDCE949
2.3
3.6
Output Yx supply
VDD(OUT)
V
voltage
CDCEL949
1.7
1.9
VIL
Low level input voltage LVCMOS
0.3
× V
DD
V
VIH
High level input voltage LVCMOS
0.7
× V
DD
V
VI(thresh)
Input voltage threshold LVCMOS
0.5
× V
DD
V
Input voltage range S0
0
1.9
VIS
V
Input voltage range S1,
VIthresh = 0.5 VDD
0
3.6
S2, SDA, SCL
VICLK
Input voltage range CLK
0
1.9
V
VDDout = 3.3 V
±12
mA
IOH /IOL
Output current
VDDout = 2.5 V
±10
mA
VDDout = 1.8 V
±8
mA
CL
Output load LVCMOS
10
pF
TA
Operating free-air temperature
–40
85
°C
MIN
NOM
MAX
UNIT
fXtal
Crystal Input frequency range (fundamental mode)
8
27
32
MHz
ESR
Effective series resistance
100
fPR
Pulling range (0 V
≤ V
Ctrl ≤ 1.8 V)
(2)
±120
±150
ppm
V(Ctrl)
Frequency control voltage
0
VDD
V
C0/C1
Pullability ratio
220
CL
On-chip load capacitance at Xin and Xout
0
20
pF
(1)
For more information about VCXO configuration and crystal recommendation see application report SCAA085.
(2)
Pulling range depends on crystal type, on-chip crystal load capacitance and PCB stray capacitance; pulling range of min
±120 ppm
applies for crystal listed in the application report SCAA085.
MIN
TYP
MAX
UNIT
EEcyc
EEcyc programming cycles of EEPROM
1000
cycles
EEret
EEret data retention
10
years
4
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