CDCLVC11xx
SCAS895 –MAY 2010
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DEVICE CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER CONDITION MIN TYP(1) MAX UNIT
OVERALL PARAMETERS FOR ALL VERSIONS
1G = VDD; CLKIN = 0 V or VDD; IO= 0 mA; VDD = 3.6 V 6 10 mA
IDD Static device current(2) 1G = VDD; CLKIN = 0 V or VDD; IO= 0 mA; VDD = 2.7 V 3 6 mA
IPD Power down current 1G = 0 V; CLKIN = 0 V or VDD; IO= 0 mA; VDD = 3.6 V or 2.7 V 60 µA
VDD = 3.3 V; f = 10 MHz 6 pF
Power dissipation capacitance
CPD per output(3) VDD = 2.5 V; f = 10 MHz 4.5 pF
Input leakage current at 1G ± 8
IIVI= 0 V or VDD, VDD = 3.6 V or 2.7 V µA
Input leakage current at CLKIN ± 25
VDD = 3.3 V 45 Ω
ROUT Output impedance VDD = 2.5 V 60 Ω
VDD = 3.0 V to 3.6 V DC 250 MHz
fOUT Output frequency VDD = 2.3 V to 2.7 V DC 180 MHz
OUTPUT PARAMETERS FOR VDD = 3.3 V ± 0.3 V
VDD = 3 V, IOH = –0.1 mA 2.9
VOH High-level output voltage VDD = 3 V, IOH = –8 mA 2.5 V
VDD = 3 V, IOH = –12 mA 2.2
VDD = 3 V, IOL = 0.1 mA 0.1
VOL Low-level output voltage VDD = 3 V, IOL = 8 mA 0.5 V
VDD = 3 V, IOL = 12 mA 0.8
tPLH,Propagation delay CLKIN to Yn 0.8 2.0 ns
tPHL
tsk(o) Output skew Equal load of each output 50 ps
tr/tfRise and fall time 20%–80% (VOH - VOL) 0.3 0.8 ns
tDIS Output disable time 1G to Yn 6 ns
tEN Output enable time 1G to Yn 6 ns
Pulse skew ;
tsk(p) To be measured with input duty cycle of 50% 180 ps
tPLH(Yn) – tPHL(Yn) (4)
tsk(pp) Part-to-part skew Under equal operating conditions for two parts 0.5 ns
tjitter Additive jitter rms 12kHz…20 MHz, fOUT = 250 MHz 100 fs
(1) All typical values are at respective nominal VDD. For switching characteristics, outputs are terminated to 50 Ωto VDD/2 (see Figure 1).
(2) For dynamic IDD over frequency see Figure 8 and Figure 9.
(3) This is the formula for the power dissipation calculation (see Figure 8 and the Power Consideration section).
Ptot = Pstat + Pdyn + PCload [W]
Pstat = VDD × IDD [W]
Pdyn = CPD × VDD2 × ƒ [W]
PCload = Cload × VDD2 × ƒ × n [W]
n = Number of switching output pins
(4) tsk(p) depends on output rise- and fall-time (tr/tf). The output duty-cycle can be calculated: odc = (tw(OUT) ± tsk(p))/tperiod; tw(OUT) is
pulse-width of output waveform and tperiod is 1/fOUT.
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