W528SXX

Publication Release Date: Nov 2000

- 15 -

Revision A1

B. Ttigger Pin Coupling Effect

The trigger pins (TG1

−TG4) are built-in 500KΩ pull high resistor.

If the wire of the input trigger is very close to the speaker wire in the application environment, the

coupling effect will occur. The input voltage of the trigger pin will be unstable, causing the trigger

operation to become abnormal.

value of the Ri depends on your application environment.

SPK

TGn

Ri

Headquarters

No. 4, Creation Rd. III,

Science-Based Industrial Park,

Hsinchu, Taiwan

TEL: 886-3-5770066

FAX: 886-3-5792697

http://www.winbond.com.tw/

Voice & Fax-on-demand: 886-2-27197006

Taipei Office

11F, No. 115, Sec. 3, Min-Sheng East Rd.,

Taipei, Taiwan

TEL: 886-2-27190505

FAX: 886-2-27197502

Winbond Electronics (H.K.) Ltd.

Rm. 803, World Trade Square, Tower II,

123 Hoi Bun Rd., Kwun Tong,

Kowloon, Hong Kong

TEL: 852-27513100

FAX: 852-27552064

Winbond Electronics North America Corp.

Winbond Memory Lab.

Winbond Microelectronics Corp.

Winbond Systems Lab.

2727 N. First Street, San Jose,

CA 95134, U.S.A.

TEL: 408-9436666

FAX: 408-5441798

Note: All data and specifications are subject to change without notice.