Datasheet > ML22620

ML22620

更新时间： 2023-09-03 20:25:23

品牌	Logo	应用领域
罗姆 - ROHM		语音合成放大器 PC 驱动存储转换器
页数	文件大小	规格书
121页	1542K
描述
ML22620/ML22660可以在外部连接高达128Mbit的串行存储器，因此是非常适合长时间语音播放应用的语音合成LSI。产品采用实现高音质的HQ-ADPCM、16位D/A转换器和低通滤波器，并内置用来直接驱动扬声器的1.0W单声道扬声器放大器。语音输出所需的功能已经全部集成于1枚芯片中，因此仅需增加本LSI，即可轻松实现语音功能。

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数据手册

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ML22620 数据手册

FEDL22620-05

ML22620

Initial

Symbol

I/O

Attribute

Negative

Description

value ^*1

Reset input pin.

The LSI is initialized by the "L" level input. After a reset is input, all the

circuits stop operating and enter the power-down state.

At power-on, input an "L" level to this pin. After the power supply

voltage stabilizes, set this pin to an "H" level.

RESETB

(^*2)

A pull-up resistor is internally connected.

Input pin for testing.

TEST0

Positive A pull-down resistor is internally connected.

Fix to the DGND.

Status/error output pin 1.

Execute OUTSTAT command to select BUSYB^*3and NCR^*3in each

STATUS1

channel, or errors.

The initial value is BUSYB^*3of channel 0, and output data is "H" level.

Status/error output pin 2.

Execute OUTSTAT command to select BUSYB^*3and NCR^*3in each

STATUS2

channel, or errors.

The initial value is BUSYB^*3of channel 0, and output data is "H" level.

Command processing status signal output pin.

CBUSYB

N.C.

Negative An "L" level is output during command processing.

Be sure to input a command with this pin at an "H" level.

(^*2)

2,8,

15,25

Unused pin.

Leave open.

Hi-Z

*1 Initial value at reset input and power-down. The pin whose IO is "I" indicates a fixed level from outside.

*2 "L" at reset, "H" at power-down

*3 For NCR, BUSYB, refer to the description of "RDSTAT command".

■ Termination of Unused Pins

This section explains how to terminate unused pins.

Symbol

EROFF

Recommended pin termination

Connect to the DGND.

Leave open.

XTB

AIN

TEST0

N.C.

Connect to the SPGND.

Connect to the DGND.

SPM

Leave open.

STATUS1

STATUS2

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1...4 5 678 9 10...121

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