CXP86449 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

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CXP86449

CMOS 8-bit Single Chip Microcomputer

Sony Semiconductor 

CXP86213/86217, CXP86325/86333, CXP86441/86449/86461

(6) OSD timing

(Ta = –20 to +75°C, VDD = 4.5 to 5.5V, Vss = 0V reference)

Item

Symbol Pins Conditions Min.

Max Unit

OSD clock frequency

fOSC

EXLC

XLC

Fig. 11

4

HSYNC pulse width

VSYNC pulse width

tHWD HSYNC Fig. 10

2

tVWD VSYNC Fig. 10

1

HSYNC afterwrite rise and fall

times

tHCG

HSYNC Fig. 10

VSYNC beforewrite rise and fall

times

tVCG

VSYNC Fig. 10

∗1 The maximum value of fosc is specified with the following equation.

fosc [max] ≤ fc × 1.9

∗2 H indicates 1HSYNC period.

28∗1 MHz

µs

H∗2

200 ns

1.0

µs

Fig. 10. OSD timing

tHWD

tHCG

HSYNC

For OSD I/O polarity register

(OPOL: 01FEh)

bit 7 at “0”

0.8VDD

0.2VDD

VSYNC

For OSD I/O polarity register

(OPOL: 01FEh)

bit 6 at “0”

tVCG

tVWD

0.8VDD

0.2VDD

Fig. 11. LC oscillation circuit connection

EXLC

L

C1

XLC

R∗1

C2

∗1 The series resistor for XLC is used to reduce the frequency of occurrence of the undesired radiation.

– 18 –

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