FIN24C_06 FAIRCHILD [Fairchild Semiconductor], FIN24C_06 Datasheet - Page 12

• Manufacturer Part Number: FIN24C_06
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

©2005 Fairchild Semiconductor Corporation
FIN24C Rev. 1.0.2
Flex Circuit Design Guidelines
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:
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■
■
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Keep all four differential wires the same length.
Allow no noisy signals over or near differential serial wires. Example: No LVCMOS traces over differential wires.
Use only one ground plane or wire over the differential serial wires. Do not run ground over top and bottom.
Do not place test points on differential serial wires.
Use differential serial wires a minimum of 2cm away from the antenna.
Sending
Control
Unit
Unit
REFCK
REFCK
DATA [0:23]
Figure 13. Unidirectional Control, Bi-directional Data Interface
DATA [0:19]
PwrDwn
CNTL[0:3]
Figure 12. 24-Bit Unidirectional Serializer and Deserializer
V
DD
CKREF
STROBE
DP[1:24]
S1
S2
CKREF
STROBE
DP[21:24]
DP[1:20]
S2
S1
DIRI
DIRI
FIN24C
FIN24C
CKSO
CKSO
DIRO
DIRO
CKSI
DS
DS
12
CKSI
DS
DIRO
CKSI
DS
CKSO
DIRI
FIN24C
FIN24C
PwrDwn
DP[21:24]
STROBE
DP[1:24]
DP[1:20]
DIRO
CKP
DIRI
CKP
S1
S2
S2
S1
DATA [0:23]
DATA [0:19]
CNTL[0:3]
Receiving
Slave
Unit
Unit
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