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CDCVF857GQL Fiches technique(PDF) 6 Page - Texas Instruments

No de pièce CDCVF857GQL
Description  2.5-V PHASE-LOCKED-LOOP CLOCK DRIVER
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
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CDCVF857GQL Fiches technique(HTML) 6 Page - Texas Instruments

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
CDCVF857
SCAS047F – MARCH 2003 – 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
DC
CLK, FBIN
0.36
VDDQ + 0.6
VID
Differential input signal voltage (2)
V
AC
CLK, FBIN
0.7
VDDQ + 0.6
VIX
Input differential pair cross voltage (3)(4)
VDDQ/2 – 0.2
VDDQ/2 + 0.2
V
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 tracks 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
Output differential
120
Ω, C
L = 14 pF (see Figure 3)
VOX
VDDQ/2 – 0.1
VDDQ/2
VDDQ/2 + 0.1
V
cross-voltage (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 =
IDDPD
20
100
µA
+ AVDD
Low;
Σ of I
DD 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
fO = 170 MHz
120
140
Without load
fO = 200 MHz
125
150
Differential outputs
fO = 170 MHz
220
270
terminated with 120
Ω, C
L
IDD
Dynamic current on VDDQ
mA
fO = 200 MHz
230
280
= 0 pF
Differential outputs
fO = 170 MHz
280
330
terminated with 120
Ω, C
L
fO = 200 MHz
300
350
= 14 pF
(1)
All typical values are at 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.
6
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