AK4309 查看數據表（PDF） - Asahi Kasei Microdevices

零件编号

产品描述 (功能)

生产厂家

AK4309

16Bit SCF DAC for Multimedia

Asahi Kasei Microdevices 

ASAHI KASEI

[AK4309B]

PIN/FUNCTION

No. Pin Name I/O

Function

1 TST1

I Test Pin

(Pull-down pin)

Must be left floating or tied to DVSS.

2 DVDD

- Digital Power Supply Pin

3 DVSS

- Digital Ground Pin

4 NC

- No Connection

5 RST

I Reset Pin

When at "L", the AK4309B is in power-down mode and is held in reset.

The AK4309B should always be reset upon power-up.

6 MCLK

I Master Clock Input Pin

An external TTL clock should be input on this pin.

The fs is selected by CKS pin.

7 CKS

I Master Clock Select Pin

"L": MCLK=256fs, "H": MCLK=384fs

8 BICK

I Serial Bit Input Clock Pin

This clock is used to latch SDATA.

9 SDATA

I Serial Data Input Pin

2's complement MSB-first data is input on this pin.

10 LRCK

I L/R Clock Pin

This input determines which channel is currently being input on the Serial

Data Input pin, SDATA. "H": Lch, "L": Rch

11 AOUTR

O Rch analog output pin

12 AOUTL

O Lch analog output pin

13 VCOM

O Common Voltage pin, AVDD/2

Normally connected to AVSS with a 0.1uF ceramic capacitor in parallel with

a 10uF electrolytic cap.

14 AVDD

- Analog Power Supply Pin

15 AVSS

- Analog Ground Pin

16 NC

- No Connection

17 NC

18 VREFH

I "H" Voltage Reference Input Pin

The differential Voltage between VREFH and VREFL inputs set the analog

output range. The VREFH pin is normally connected to AVDD and the

VREFL pin is connected to AVSS. A 0.1uF ceramic capacitor should be as

near to both pins.

19 VREFL

I "L" Voltage Reference Input Pin

20 DZF

O Zero Input Detect Pin

When SDATA of both channels follow a total 8192 LRCK cycles with "0"

input data, this pin goes "H".

* NC pins are not bonded internally.

0177-E-00

-3-

1997/6

Share Link: