FIN212AC 데이터 시트보기 (PDF) - Fairchild Semiconductor

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FIN212AC

12-Bit Serializer Deserializer with Multiple Frequency Ranges

Fairchild Semiconductor 

Application Diagrams (Continued)

Figure 6. Dual Display with 8-Bit WRITE-Only Microcontroller Interface

(Example Shows BGA 42-Pin Package)

Serializer Configuration:

ƒ PLL Frequency Mode: MODE 1 (S1=0, S0=1) CKREF=26MHz

ƒ STROBE Frequency = 10 MHz

ƒ PLL Divide Mode: Divide-by 2 (PLL1=1, PLL0=0) Multiplier x 3.5

Deserializer Configuration:

ƒ Edge Rate Mode: SLOW MODE 1 (S1=1, S0=0)

ƒ Pulse Width Mode: 13-Bit Time Mode (PWS1=PWS0=0) (~71.4ns)

Additional Application Information

Flex Cabling: The serial I/O information is transmitted at a high serial rate. Care must be taken implementing this

serial I/O flex cable. The following best practices should be used when developing the flex cabling or Flex PCB.

ƒ Keep all four differential Serial Wires the same length.

ƒ Do not allow noisy signals over or near differential serial wires.

Example: No LVCMOS traces over differential serial wires.

ƒ Use only one ground plane or wire over the differential serial wires. Do not run ground over top and bottom.

ƒ Design goal of 100-ohms differential characteristic impedance.

ƒ Do not place test points on differential serial wires.

ƒ Use differential serial wires a minimum of 2cm away from the antenna.

ƒ For additional applications notes or flex guidelines see your sales rep or contact Fairchild directly.

© 2006 Fairchild Semiconductor Corporation

FIN212AC Rev. 1.0.1

10

www.fairchildsemi.com

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