AK8825 查看數據表（PDF） - Asahi Kasei Microdevices

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AK8825

HD/SD Multi Format Video Encoder with 3ch DAC

Asahi Kasei Microdevices 

(5) Power Up sequence

There are no order restriction to make power up, AVDD, DVDD, PVDD1, PVDD2.

Clock input is not necessary to write register.

(5-1) The sequence for power down mode after power-up.

Clock input to the CLKIN pin is necessary to guarantee “Current Consumption of Power down”

(r) : Register-bit

[AK8825]

Power

Supply

PDN

CLKIN

DTRSTN (r)

PLLPDN (r)

CONVMOD[1:0] (r)

t >100ns(Note.1)

t >100clk

Low

0x00 (Composite Video Encoder mode)

AVDD:2.7V

DVDD:1.65V

PVDD:1.65V

Fig. 12 Power-Up sequence (To make Power down state after power-up)

Note.1) Please wait 100ns for make PDN pin low after the Voltage of Power Supply becomes stable enough,

Rev-E-00

20

2008/03

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