DS92LV0411SQE/NOPB National Semiconductor, DS92LV0411SQE/NOPB Datasheet - Page 26

• Manufacturer Part Number: DS92LV0411SQE/NOPB
• Description: IC SER/DESER 5-50MHZ 24B 36-LLP
• Manufacturer: National Semiconductor

Specifications of DS92LV0411SQE/NOPB

• Serdes Function: Serializer
• Data Rate: 1.2Gbps
• Ic Output Type: CML
• No. Of Inputs: 4
• No. Of Outputs: 2
• Supply Voltage Range: 1.71V To 1.89V, 3V To 3.6V
• Driver Case Style: LLP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DS92LV0411SQE/NOPBTR

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EMI REDUCTION FEATURES
Des — VOD Select (VODSEL)
The differential output voltage of the Channel Link interface
is controlled by the VODSEL input.
Des — SSCG Generation — Optional
The Des provides an internally generated spread spectrum
clock (SSCG) to modulate its outputs. Both clock and data
VODSEL
L
H
SSC[2:0] Inputs
LF_MODE = L (20 — 55 MHz)
SSC2
L
L
L
L
H
H
H
H
TABLE 7. Des — Differential Output Voltage Table
Result
VOD is 250 mV TYP (500 mVp-p)
VOD is 400 mV TYP (800 mVp-p)
SSC1
L
L
H
H
L
L
H
H
TABLE 8. SSCG Configuration (LF_MODE = L) — Des Output
SSC0
L
H
L
H
L
H
L
H
26
outputs are modulated. This will aid to lower system EMI.
Output SSCG deviations to ±2% (4% total) at up to 100 kHz
modulations is available. See Table . This feature may be
controlled by external STRAP pins or by register. The LF-
MODE setting should be set appropriately if the SSCG is
being used. Set LFMODE HIGH if the clock frequency is be-
tween 5 MHz and 20 MHz. Set LFMODE LOW if teh clock
frequency is between 20 MHz and 50 MHz.
Result
fdev (%)
OFF
±0.9
±1.2
±1.9
±2.3
±0.7
±1.3
±1.7
fmod (kHz)
OFF
CLK/2168
CLK/1300