DS90CR286AMTDX National Semiconductor, DS90CR286AMTDX Datasheet - Page 8

• Manufacturer Part Number: DS90CR286AMTDX
• Manufacturer: National Semiconductor

Specifications of DS90CR286AMTDX

• Number Of Elements: 4
• Number Of Receivers: 4
• Number Of Drivers: 28
• Input Type: CMOS/TTL
• Operating Supply Voltage (typ): 3.3V
• Differential Input High Threshold Voltage: 100mV
• Diff. Input Low Threshold Volt: -100mV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 56
• Package Type: TSSOP
• Lead Free Status / Rohs Status: Not Compliant

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RxIN+
RxIN−
RxOUT
RxCLK IN+
RxCLK IN−
RxCLK OUT
PWR DOWN
V
GND
PLL V
PLL GND
LVDS V
LVDS GND
CC
C—Setup and Hold Time (Internal data sampling window) defined by Rspos (receiver input strobe position) min and max
Tppos—Transmitter output pulse position (min and max)
RSKM = Cable Skew (type, length) + Source Clock Jitter (cycle to cycle)
(Note ISI is dependent on interconnect length; may be zero.
Cable Skew—typically 10 ps–40 ps per foot, media dependent
Note 6: Cycle-to-cycle jitter is less than TBD ps at 66 MHz.
Note 7: ISI is dependent on interconnect length; may be zero.
DS90CR286A Pin Descriptions —
MTD56 Package — 28-Bit Channel
Link Receiver
Pin Name
CC
CC
I/O No
O
O
I
I
I
I
I
I
I
I
I
I
I
28 TTL level data outputs.
4
4
1
1
1
1
4
5
1
2
1
3
.
Positive LVDS differentiaI data inputs.
Negative LVDS differential data inputs.
Positive LVDS differential clock input.
Negative LVDS differential clock input.
TTL Ievel clock output. The rising edge acts as data strobe.
TTL level input. When asserted (low input) the receiver outputs are low.
Power supply pins for TTL outputs.
Ground pins for TTL outputs.
Power supply for PLL.
Ground pin for PLL.
Power supply pin for LVDS inputs.
Ground pins for LVDS inputs.
FIGURE 11. Receiver LVDS Input Skew Margin
)
(Note Cycle-to-cycle jitter is less than TBD ps at 66 MHz.
8
Description
) + ISI (Inter-symbol interference)
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