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CDCVF855PWRG4 Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza CDCVF855PWRG4
Descripción Electrónicos  2.5-V PHASE-LOCKED-LOOP CLOCK DRIVER
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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CDCVF855PWRG4 Datasheet(HTML) 4 Page - Texas Instruments

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
CDCVF855
SCAS839A – APRIL 2007 – REVISED MAY 2007
MIN
NOM
MAX
UNIT
VDDQ PC1600 – PC3200
2.3
2.7
Supply voltage
V
AVDD
VDDQ – 0.12
2.7
CLK, CLK, FBIN, FBIN
VDDQ/2 – 0.18
VIL
Low-level input voltage
V
PWRDWN
–0.3
0.7
CLK, CLK, FBIN, FBIN
VDDQ/2 + 0.18
VIH
High-level input voltage
V
PWRDWN
1.7
VDDQ + 0.3
DC input signal voltage(1)
–0.3
VDDQ + 0.3
V
VDDQ = 2.3 V – 2.7V
0.36
VDDQ + 0.6
DC
CLK, FBIN
VDDQ = 2.425 V – 2.7 V
0.25
VDDQ + 0.6
VID
Differential input signal voltage(2)
V
VDDQ = 2.3 V – 2.7 V
0.7
VDDQ + 0.6
AC
CLK, FBIN
VDDQ = 2.425 V – 2.7 V
0.49
VDDQ + 0.6
Input differential pair cross
VIX
VDDQ/2 – 0.2
VDDQ/2 + 0.2
V
voltage(3)(4)
IOH
High-level output current
–12
mA
IOL
Low-level output current
12
mA
SR
Input slew rate
1
4
V/ns
TA
Operating free-air temperature
–40
85
°C
(1)
The unused inputs must be held high or low to prevent them from floating.
(2)
The dc input signal voltage specifies the allowable dc execution of the differential input.
(3)
The differential input signal voltage specifies the differential voltage |VTR – VCP| required for switching, where VTR is the true input
level and VCP is the complementary input level.
(4)
The differential cross-point voltage is expected to track variations of VCC and is the voltage at which the differential signals must cross.
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP (1)
MAX
UNIT
VIK
Input voltage, all inputs
VDDQ = 2.3 V, II = –18 mA
–1.2
V
VDDQ = min to max, IOH = –1 mA
VDDQ – 0.1
VOH
High-level output voltage
V
VDDQ = 2.3 V, IOH = –12 mA
1.7
VDDQ = min to max, IOL = 1 mA
0.1
VOL
Low-level output voltage
V
VDDQ = 2.3 V, IOL = 12 mA
0.6
VOD
Output voltage swing (2)
1.1
VDDQ – 0.4
V
Differential outputs are terminated with 120
Ω,
Output differential cross-voltage
CL = 14 pF (See Figure 3)
VOX
VDDQ/2 – 0.1
VDDQ/2 VDDQ/2 + 0.1
V
(3)
II
Input current
VDDQ = 2.7 V, VI = 0 V to 2.7 V
±10
µA
High-impedance-state output
IOZ
VDDQ = 2.7 V, VO = VDDQ or GND
±10
µA
current
Power-down current on VDDQ +
CLK and CLK = 0 MHz; PWRDWN = Low;
Σ of
IDDPD
20
100
µA
AVDD
IDD and AIDD
fO = 170 MHz
6
8
AIDD
Supply current on AVDD
mA
fO = 200 MHz
8
10
CI
Input capacitance
VDDQ = 2.5 V, VI = VDDQ or GND
2
2.5
3.5
pF
(1)
All typical values are at a nominal VDDQ.
(2)
The differential output signal voltage specifies the differential voltage |VTR – VCP|, where VTR is the true output level and VCP is the
complementary output level.
(3)
The differential cross-point voltage tracks variations of VDDQ and is the voltage at which the differential signals must cross.
4
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