FIN212AC(2008) 查看數據表（PDF） - Fairchild Semiconductor

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FIN212AC
(Rev.:2008)

12-Bit Serializer Deserializer with Multiple Frequency Ranges

Fairchild Semiconductor 

Application Diagrams (Continued)

Baseband

Microprocessor

SYS CLK

/WE

DATA[7:0]

A0

/CS0

/CS1

/RES

FIN212

Serializer

FIN212

Deserializer

VDD1

D3

E4 F4

VDDP VDDS/A

VDD

2.775

VDD2

E4 F4

D3

VDDS/A VDDP

A6 CKREF

B5 STROBE

NC C1 CKP

CKP C1

STROBE B5

CKREF A6

B3:E1

E2

F1

F2

G1

VDD1

F6

G3

G4

DP[8:1]

DP[9]

DP[10] CKSO+ C5

DP[11] CKSO- C6

DP[12]

DSO+/DSI- D6

DSO-/DSI+ D5

DIRI

PLL1

CKSI - E6 NC

CKSI+ E5 NC

PLL0 /DIRO B6 NC

S1

S0

G5

G6

DP[8:1] B3:E1

DP[9] E2

E5 CKSI+

E6 CKSI-

DP[10] F1 NC

DP[11] F2

D6

DP[12] G1

DSO-/DSI+

D5

NC C6

NC C5

DSO+/DSI-

CKSO-

DIRI

CKSO+ PWS1

F6

G3

VDD2

PWS0 G4

NC B6 /DIRO

S1

S0

G5

G6

LCD Primary

Display

/WE

DATA[7:0]

C/D-

/CS

/RES

LCD Sub

Display

/WE

DATA[7:0]

C/D-

/CS

/RES

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. 1.0.6

10

www.fairchildsemi.com

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