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位置：LS1240A > LS1240A詳情

LS1240A中文資料

廠家型號(hào)

LS1240A
文件大小

496.77Kbytes
頁面數(shù)量

7頁
功能描述

Electronic two-tone ringer

電話振鈴器 Two-Tone Ringer
數(shù)據(jù)手冊(cè)

原廠下載下載地址一下載地址二到原廠下載
生產(chǎn)廠商

STMICROELECTRONICS

LS1240A數(shù)據(jù)手冊(cè)規(guī)格書PDF詳情

Description

LS1240 is a monolithic integrated circuit designed to replace the mechanical bell in telephone sets in connection with an electro-acoustical converter. It can drive directly a piezoceramic converter (buzzer) or a dynamic loudspeaker.

The output current capability of LS1240 is higher than the one of a standard ringer. To drive a dynamic loudspeaker LS1240 can simply use a decoupling capacitor, thus eliminating the usual transformer.

No current limitation is provided on the output stage of LS1240, so a minimum load DC of 50 ? is advised, in series with a proper capacitor.

Features

■ Low current consumption, in order to allow the parallel operation of 4 devices

■ Integrated rectifier bridge with zener diodes to protect against over voltages little external circuitry

■ Tone and switching frequencies adjustable by external components

■ Integrated voltage and current hysteresis

LS1240A產(chǎn)品屬性

  • 類型

    描述

  • 型號(hào)

    LS1240A

  • 功能描述

    電話振鈴器 Two-Tone Ringer

  • RoHS

    否

  • 制造商

    NJR

  • 產(chǎn)品

    FSK Demodulator/Tone Decoder

  • 封裝/箱體

    DIP-14

  • 頻率

    0.01 Hz to 300 KHz

  • 最大工作溫度

    + 85 C

  • 最小工作溫度

    - 40 C

  • 封裝

    Reel

更新時(shí)間：2025-9-8 16:57:00
供應(yīng)商 型號(hào) 品牌 批號(hào) 封裝 庫存 備注 價(jià)格
STMicroelectronics
18+
ICRINGERELECTRONIC2TONES
6800
公司原裝現(xiàn)貨/歡迎來電咨詢!
ST
21+
SOP8
2820
原裝正品實(shí)單找我支持
UTC/友順
25+
SOP8
12496
UTC/友順原裝正品LS1240A-S08-R即刻詢購立享優(yōu)惠#長期有貨
ST
17+
DIP
6200
100%原裝正品現(xiàn)貨
UTC
2016+
SOP8
3500
只做原裝,假一罰十,公司可開17%增值稅發(fā)票!
UTC
27
全新原裝!優(yōu)勢庫存熱賣中!
UTC/友順
24+
NA
9600
原裝現(xiàn)貨,優(yōu)勢供應(yīng),支持實(shí)單!
ST/意法
24+
DIP-8
46
只做原廠渠道 可追溯貨源
TI
05+
SOP-8
12880
一級(jí)分銷商
UTC
23+
DIP
3500
原廠原裝正品

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