SCAN12100TYA/NOPB National Semiconductor, SCAN12100TYA/NOPB Datasheet - Page 16

• Manufacturer Part Number: SCAN12100TYA/NOPB
• Description: IC SERIAL/DESERIAL CPRI 100-TQFP
• Manufacturer: National Semiconductor
• Series: SCANr

Specifications of SCAN12100TYA/NOPB

• Function: Serializer/Deserializer
• Data Rate: 614.4Mbps
• Input Type: LVTTL/LVCMOS
• Output Type: LVTTL, LVCMOS
• Number Of Inputs: 10
• Number Of Outputs: 10
• Voltage - Supply: 1.8 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP Exposed Pad, 100-eTQFP, 100-HTQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SCAN12100TYA

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TRANSMIT DATA
DIN[9:0] Transmit Parallel Input Data
Transmit input data pins DIN[9:0] are latched on both rising
and falling edges of TXCLK. By using both TXCLK edges, the
Transmit Serial Data Output
DOUT is a differential current mode logic (CML) driver. Both
DOUTP and DOUTN are terminated with on-chip resistors to
an internal bias voltage. The values of the internal termination
resistors are controlled to 50Ω ±20%.
DIN[0]
DIN[1]
DIN[2]
DIN[3]
DIN[4]
DIN[5]
DIN[6]
DIN[7]
DIN[8]
DIN[9]
0
0
1
1
PE[1]
Tx Input
0
1
0
1
PE[0]
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
Coded Data Bit
De-emphasis disabled.
De-emphasis enabled low (approximately 1 dB).
De-emphasis enabled medium (approximately 3 dB).
De-emphasis enabled high (approximately 6 dB).
10-bit Mode (TENBMODE = 1)
TABLE 7. Transmit De-emphasis Control Settings
TABLE 6. Transmitter Parallel Input Bus Mapping
16
clock speed is halved, which reduces high speed design and
EMI issues. The transmitter serializes and sends the valid
Dx.y or Kx.y code. If an invalid Kx.y code is provided at DIN
[9:0], the transmitter sends a K30.7 pattern.
Transmitter De-Emphasis
The transmitter serial output provides 3 steps of de-emphasis
to compensate for backplanes and cable interconnects.
Pulling both PE[1:0] pins low enables MDIO control of de-
emphasis.
Descriptions
Data Bit 0 (A, lsb)
Data Bit 1 (B)
Data Bit 2 (C)
Data Bit 3 (D)
Data Bit 4 (E)
Data Bit 5 (F)
Data Bit 6 (G)
Data Bit 7 (H, msb)
D/K Select (Z)
Pulled low through a 5 kΩ resistor
8-bit Mode (TENBMODE = 0)