Datasheet
DS92LX2121, DS92LX2122
www.ti.com
SNLS330I –MAY 2010–REVISED APRIL 2013
Serializer Electrical Characteristics
(1)(2)(3)
(continued)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Units
V
DDn
= 1.89V PCLK = 50
CL = 8pF MHz
WORST CASE SSCG[3:0] =
60 96
Pattern ON
Deserializer (Rx)
(See Figure 6) Default
I
DDR
VDDn Supply Current (includes load mA
Registers
current)
V
DDn
= 1.89V PCLK = 50
CL = 8pF MHz
53
RANDOM Pattern Default
Registers
I
DDIOR
Deserializer (Rx) V
DDIO
= 1.89 V PCLK = 50
VDDIO Supply Current (includes load CL = 8pF MHz
current) WORST CASE Default 21 32
Pattern Registers
(See Figure 6)
mA
V
DDIO
= 3.6 V PCLK = 50
CL = 8pF MHz
WORST CASE Default 49 83
Pattern Registers
(See Figure 6)
PDB = 0V; All V
DDn
= 1.89
42 400
other LVCMOS V
I
DDRZ
Deserializer (Rx) Supply Current
Inputs = 0V
V
DDIO
= 1.89 µA
Power-down 8 40
V
I
DDIORZ
V
DDIO
= 3.6 V 350 800
Serializer Electrical Characteristics Recommended Serializer Timing for PCLK
(1)(2)(3)
Over recommended operating supply and temperature ranges unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Units
t
TCP
Transmit Clock Period 10 MHz – 50 MHz 20 T 100 ns
(4)
t
TCIH
Transmit Clock Input High 0.4T 0.5T 0.6T ns
Time
t
TCIL
Transmit Clock Input Low 0.4T 0.5T 0.6T ns
Time
t
CLKT
PCLK Input Transition Time 0.5 3 ns
t
OSC
Internal oscillator clock
25 MHz
source
(1) The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not guaranteed.
(2) Current into device pins is defined as positive. Current out of a device pin is defined as negative. Voltages are referenced to ground
except VOD, ΔVOD, VTH and VTL which are differential voltages.
(3) Typical values represent most likely parametric norms at 1.8V or 3.3V, T
A
= +25°C, and at the Recommended Operation Conditions at
the time of product characterization and are not guaranteed.
(4) Specification is guaranteed by characterization and is not tested in production.
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