DS90CR484AVJD/NOPB National Semiconductor, DS90CR484AVJD/NOPB Datasheet - Page 19

• Manufacturer Part Number: DS90CR484AVJD/NOPB
• Description: IC DESERIALIZER 48BIT 100TQFP
• Manufacturer: National Semiconductor

Specifications of DS90CR484AVJD/NOPB

• Function: Serializer/Deserializer
• Data Rate: 5.38Gbps
• Input Type: LVDS
• Output Type: CMOS, TTL
• Number Of Inputs: 8
• Number Of Outputs: 48
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DS90CR484AVJD

RxINP
RxINM
RxOUT
RxCLKP
RxCLKM
RxCLKOUT
PLLSEL
DESKEW
PD
V
GND
PLLV
PLLGND
LVDSV
LVDSGND
NC
CC
DS90CR484A Pin Descriptions—Channel Link Receiver
Note 12: These receivers have input fail-safe bias circuitry to guarantee a stable receiver output for floating or terminated receiver inputs. Under test conditions
receiver inputs will be in a HIGH state. If the cable interconnect (media) are disconnected which results in floating/terminated inputs, the outputs will remain in
the last valid state.
Note 13: The DS90CR484A is design to automatically detect the DC Balance or non-DC Balance transmitted data from the DS90CR483A and deserialize the
LVDS data according to the define bit mapping.
CC
Pin Name
CC
I/O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
Positive LVDS differential data inputs.
Negative LVDS differential data inputs.
TTL level data outputs. In PowerDown (PD = Low) mode, receiver outputs are forced to a Low
state.
Positive LVDS differential clock input.
Negative LVDS differential clock input.
TTL level clock output. The rising edge acts as data strobe.
PLL range select. This pin should be tied to V
the PLL to low range only. Low range is 33 — 40 MHz. High range is 38 — 112 MHz.(Note 11)
Deskew / Oversampling “on/off” select. When using the Deskew / Oversample feature this pin
must be tied to V
supported in the DC Balance mode.
TTL level input. When asserted (low input) the receiver outputs are Low. (Note 11)
Power supply pins for TTL outputs and digital circuitry. Bypass not required on Pins 6 and 77.
Ground pins for TTL outputs and digital circuitry.
Power supply for PLL circuitry.
Ground pin for PLL circuitry.
Power supply pin for LVDS inputs.
Ground pins for LVDS inputs.
No Connect. Make NO Connection to these pins - leave open.
CC
. Tieing this pin to ground disables this feature. (Note 11) Deskew is only
19
Description
CC
for high-range. Tied to ground or NC will force
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