CDC950 Datasheet, PDF (8/16 Pages) Texas Instruments – 133-MHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR PC MOTHERBOARDS/SERVERS

CDC950
133ĆMHz DIFFERENTIAL CLOCK SYNTHESIZER/DRIVER FOR
PC MOTHERBOARDS/SERVERS
SCAS646B − FEBRUARY 2001 − REVISED OCTOBER 2003
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
HCLK/HCLK (Type X1)
PARAMETER
ro
Output resistance
VO Output voltage
TEST CONDITIONS
IO
Output current
VDD = 3.30 V nom
VDD = 3.30 V, ±5%
All combinations of Table 5, See Note 5
CO Output capacitance VDD = 3.30 V nom VO = VDD GND
NOTE 5: I(NOM) is output current (IOH) of table 5.
3V48, 3V48REFCLK (Type 3)
PARAMETER
TEST CONDITIONS
VOH High-level output voltage
VDD = min to max,
VDD = 3.135 V,
VOL Low-level output voltage
VDD = min to max,
VDD = 3.135 V,
VDD = 3.135 V,
IOH High-level output current
VDD = 3.3 V,
VDD = 3.465 V,
VDD = 3.135 V,
IOL Low-level output current
VDD = 3.3 V,
VDD = 3.465 V,
CO Output capacitance
VDD = 3.3 V,
High state
Zo
Output impedance
Low state
VO = 0.5 VDD,
VO = 0.5 VDD,
† _{All typical values are measured at their respective nominal VDD values.}
IOH = –1 mA
IOH = −14 mA
IOL = 1 mA
IOL = 9 mA
VO = 1 V
VO = 1.65 V
VO = 3.135 V
VO = 1.95 V
VO = 1.65 V
VO = 0.4 V
VO = VDD or GND
VO/IOH
VO/IOL
MIN TYP† MAX
3000
1.2
−7%
l(NOM)
−12%
l(NOM)
7%
l(NOM)
12%
l(NOM)
3.5
UNIT
Ω
V
mA
pF
MIN
VDD – 0.1
2.4
TYP†
0.18
−29
−37
−11
29
39
16
4.5
20
40
20
40
MAX
0.1
0.4
−23
27
7
60
60
UNIT
V
mA
pF
Ω
8
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