Datasheet
DS90UR905Q, DS90UR906Q
SNLS313G –SEPTEMBER 2009–REVISED APRIL 2013
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Recommended Operating Conditions
Min Nom Max Units
Supply Voltage (V
DDn
) 1.71 1.8 1.89
LVCMOS Supply Voltage (V
DDIO
) 1.71 1.8 1.89 V
OR LVCMOS Supply Voltage (V
DDIO
) 3.0 3.3 3.6
Operating Free Air Temperature (T
A
) −40 +25 +105 °C
PCLK Clock Frequency 5 65 MHz
Supply Noise
(1)
50 mV
P-P
(1) Supply noise testing was done with minimum capacitors on the PCB. A sinusoidal signal is AC coupled to the V
DDn
(1.8V) supply with
amplitude = 100 mVp-p measured at the device V
DDn
pins. Bit error rate testing of input to the Ser and output of the Des with 10 meter
cable shows no error when the noise frequency on the Ser is less than 750 kHz. The Des on the other hand shows no error when the
noise frequency is less than 400 kHz.
Serializer DC Electrical Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified.
(1)(2)(3)
Symbol Parameter Conditions Pin/Freq Min Typ Max Units
LVCMOS INPUT DC SPECIFICATIONS
V
DDIO
= 3.0 to 3.6V 2.2 V
DDIO
V
High Level Input
V
IH
0.65*
R[7:0],
Voltage
V
DDIO
= 1.71 to 1.89V V
DDIO
V
V
DDIO
G[7:0],
B[7:0],
V
DDIO
= 3.0 to 3.6V GND 0.8 V
HS, VS, DE,
V
IL
Low Level Input Voltage
V
DDIO
= 1.71 to 1.89V 0.35*
PCLK, PDB,
GND V
V
DDIO
VODSEL,
RFB,
V
DDIO
= 3.0
-15 ±1 +15 μA
CONFIG[1:0],BIS
to 3.6V
I
IN
Input Current V
IN
= 0V or V
DDIO
TEN
V
DDIO
= 1.7
-15 ±1 +15 μA
to 1.89V
LVDS DRIVER DC SPECIFICATIONS
VODSEL = 0 ±205 ±280 ±355
Differential Output
V
OD
DOUT+, DOUT- mV
Voltage
R
L
= 100Ω, VODSEL = 1 ±320 ±420 ±520
De-emph = disabled,
Differential Output VODSEL = 0 560
Figure 2
V
ODp-p
Voltage DOUT+, DOUT- mVp-p
VODSEL = 1
840
(DOUT+) – (DOUT-)
Output Voltage R
L
= 100Ω, De-emph = disabled, VODSEL = L
ΔV
OD
1 50 mV
Unbalance
DOUT+, DOUT-
Offset Voltage – Single- R
L
= 100Ω, VODSEL = 0 1.65
V
OS
ended De-emph = disabled V
VODSEL = 1 1.575
At TP A & B, Figure 1
Offset Voltage
Unbalance
ΔV
OS
R
L
= 100Ω, De-emph = disabled 1 mV
Single-ended
At TP A & B, Figure 1
DOUT+, DOUT-
Output Short Circuit DOUT+/- = 0V,
I
OS
VODSEL = 0 -36 mA
Current De-emph = disabled
Internal Termination
R
T
80 100 120 Ω
Resistor
(1) The Electrical Characteristics tables list ensured 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 ensured.
(2) Typical values represent most likely parametric norms at V
DD
= 3.3V, Ta = +25 degC, and at the Recommended Operating Conditions at
the time of product characterization and are not ensured.
(3) 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.
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