WM8234 datasheet(33/144 Pages) CIRRUS

33 / 144 page

WM8234

Rev 4.6

SENSOR TIMING GENERATION

The WM8234 provides two types of clock internally. C_CK* are high speed clocks, these clocks can

set the clock phase by using fine pitch phase control. P_CK* are pixel rate signals which is selected

by PO0 to PO7. The WM8234 has eleven sensor TG outputs pins. CLK1 is for clock type use only.

CLK2, CLK3, CLK4, CLK5 and CLK6 are selectable high speed type signal or pulse type signal. CLK7,

CLK8, CLK9, CLK10 and CLK11 are pulse type use only.

CK1

CK2

CK3

CK4

CK5

CK6

C_CK1

C_CK2

C_CK3

C_CK4

C_CK5

C_CK6

CK7

CK9

CK8

CK10

CK11

P_CK2

P_CK3

P_CK4

P_CK5

P_CK6

P_CK7

P_CK8

P_CK9

P_CK10

P_CK11

delay

PO0

PO1

PO3

PO4

PO5

PO6

PO7

PO2

MCLK (input)

CK1,2,3,4,5,6

(Clock Output)

tMCLKD

CK_RISE[5:0]

CK_FALL[5:0]

VSMP (Internal)

TGCK (Internal)

Pixel Counter

(Internal)

2*tPER/60

tPER

CK2-11

(Pulse output)

TCLKO_RISE[5:0]

TGCO (Internal)

Duty=50%

DEL_PCK [1:0]

VSMP_RISE[5:0]

VSMP_FALL[5:0]

Figure 18 TG Output Timing

WM8234 Datasheet(PDF) 33 Page - Cirrus Logic

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