Data Sheet
Digital and Timing Electrical Characteristics
(AVDD = 1.8V, DVDD = 1.8V, DVDDCLK = 1.8V, OVDD = 2.5V, 50 MSPS clock, 50% clock duty cycle,
-1 dBFS input signal, 5pF capacitive load, unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Clock Inputs
Duty Cycle
Compliance
20
80
% high
CMOS, LVDS, LVPECL, Sine Wave
400
1.6
mVpp
Vpp
V
Differential input swing
Input Range
Differential input swing, sine wave clock input
Keep voltages within ground and voltage of OVDD
Input Common Mode Voltage
0.3
VOVDD -0.3
Input Capacitance
2
pF
Differential
Timing
TPD
Start Up Time Active Mode
Start Up Time Mode
Out Of Range Recovery Time
Aperture Delay
From Power Down Mode to Active Mode
From Sleep Mode to Active
900
20
clk cycles
clk cycles
clk cycles
ns
TSLP
TOVR
TAP
1
0.8
<0.5
12
εRMS
TLAT
Aperture Jitter
psrms
clk cycles
ns
Pipeline Delay
5pF load on output bits
Relative to CLK_EXT
3
1
10
6
TD
Output Delay (see timing diagram)
Output Delay (see timing diagram)
TDC
ns
Logic Inputs
VOVDD ≥ 3.0V
2
V
V
VHI
High Level Input Voltage
Low Level Input Voltage
VOVDD = 1.7V – 3.0V
VOVDD ≥ 3.0V
0.8 • VOVDD
0
0.8
0.2 • VOVDD
10
V
VLI
VOVDD = 1.7V – 3.0V
0
V
IHI
High Level Input Leakage Current
Low Level Input Leakage Current
Input Capacitance
-10
-10
µA
µA
pF
ILI
10
CI
3
Logic Outputs
VHO
VLO
High Level Output Voltage
Low Level Output Voltage
VOVDD-0.1
V
V
0.1
5
Post-driver supply voltage equal to pre-driver
supply voltage VOVDD = VDVDD
Post-driver supply voltage above 2.25V (1)
pF
CL
Max Capacitive Load
10
pF
Note:
(1) The outputs will be functional with higher loads. However, it is recommended to keep the load on output data bits as low as possible to keep dynamic currents
and resulting switching noise at a minimum.
©2009 CADEKA Microcircuits LLC
www.cadeka.com
10
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
