AK5356VN Просмотр технического описания (PDF) - Asahi Kasei Microdevices

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AK5356VN

Low Power 20-Bit ADC with MIC-Amp & PGA

Asahi Kasei Microdevices 

ASAHI KASEI

[AK5356]

n Timing of Control Register

The internal registers are written by the 3-wire µP interface pins: CSN, CCLK, CDTI. These data are included by Chip

Address (2bit, The AK5356 is fixed to “10”.), Read/Write (1bit), Address (MSB-first, 5bit) and Control data (MSB-first,

8bit). A side of transmitted data is output to each bit by “↓” of CCLK, a side of receiving data is input by “↑” of CCLK.

Writing of data becomes effective by “↑” of CSN. The clock speed of CCLK is 5MHz (max). The value of internal

registers is initialized at PDN pin = “L”.

CSN

CCLK

CDTI

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

C1 C0 R/W A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0

C1-C0: Chip Address (Fixed to “10”)

R/W: Read/Write (Fixed to “1”; Write only)

A4-A0: Register Address

D7-D0: Control Data

Figure 11. Control Data Timing

MS0171-E-00

- 16 -

2002/08

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