DS90UR908QSQE/NOPB National Semiconductor, DS90UR908QSQE/NOPB Datasheet - Page 17

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DS90UR908QSQE/NOPB

Manufacturer Part Number
DS90UR908QSQE/NOPB
Description
IC DESERIALIZER 65MHZ 48LLP
Manufacturer
National Semiconductor
Datasheet

Specifications of DS90UR908QSQE/NOPB

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
DS90UR908QSQE/NOPBTR

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LVCMOS 1.8V / 3.3V VDDIO Operation
The LVCMOS outputs can operate with 1.8 V or 3.3 V levels
(V
offer a system power savings. This applies to the following
pins: PASS and LOCK.
FPD-LINK OUTPUT
VODSEL
The differential output voltage of the FPD-Link interface is
controlled by the VODSEL input.
DDIO
VODSEL
) for target (Display) compatibility. The 1.8 V levels will
H
PDB
L
H
H
H
H
L
L
SSC2
TABLE 4. VODSEL Configuration Table
H
H
H
H
L
L
L
L
Result
VOD is 250mV TYP (500mVp-p)
VOD is 400mV TYP (800mVp-p)
INPUTS
LFMODE = L (20 - 65 MHz)
OEN
H
H
X
X
L
L
SSC[2:0] Inputs
TABLE 5. SSCG Configuration (LFMODE = L) — Des Output
SSC1
H
H
H
H
L
L
L
L
OSS_SEL
H
H
X
L
X
X
TABLE 3. Output State Table
LOCK
X
H
H
SSC0
L
L
L
H
H
H
H
L
L
L
L
17
OTHER OUTPUTS
TxCLKOUT is TRI-STATE
TxOUT[3:0] areTRI-STATE
PASS is TRI-STATE
TxCLKOUT is TRI-STATE
TxOUT[3:0] areTRI-STATE
PASS is HIGH
TxCLKOUT is TRI-STATE
TxOUT[3:0] areTRI-STATE
PASS is TRI-STATE
TxCLKOUT is TRI-STATE or OSC Output through Register
bit
TxOUT[3:0] areTRI-STATE
PASS is TRI-STATE
TxCLKOUT is TRI-STATE
TxOUT[3:0] areTRI-STATE
PASS is HIGH
TxCLKOUT is Active
TxOUT[3:0] are Active
PASS is Active
(Normal operating mode)
SSCG GENERATION — OPTIONAl
The Des provides an internally generated spread spectrum
clock (SSCG) to modulate its outputs. Both clock and data
outputs are modulated. This will aid to lower system EMI.
Output SSCG deviations to ±2.0% (4% total) at up to 35kHz
modulations nominally are available. See
6. This feature may be controlled by pins or by register. The
LFMODE should be set appropriately if the SSCG is being
used. Set LFMODE High if the clock frequency is between 5
MHz and 20 MHz, set LFMODE Low if the clock frequency is
between 20 MHz and 65 MHz.
fdev (%)
OFF
±0.9
±1.2
±1.9
±2.3
±0.7
±1.3
±1.7
OUTPUTS
Result
fmod (kHz)
CLK/2168
CLK/1300
Table 5
OFF
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Table

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