L3240D1中文資料意法半導(dǎo)體數(shù)據(jù)手冊(cè)PDF規(guī)格書
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DESCRIPTION
L3240 is a monolithic integrated circuit designed to replace the mechanical bell in telephone sets, in connection with an electro acoustical converter.The device can drive either directly a piezo ceramic converter (buzzer) or a small loudspeaker. In this case a transformer is needed. The two tone frequencies generated are switched by an internal oscillator in a fast sequence and made audible across output amplifiers in the transducer; both tone frequencies and the switching frequency can be externally adjusted.
. LOW CURRENT CONSUMPTION, IN ORDER TO ALLOW THE PARALLEL OPERATION OF 4 DEVICES
. INTEGRATED RECTIFIER BRIDGE WITH ZENER DIODES TO PROTECT AGAINST OVERVOLTAGES
. LITTLE EXTERNAL CIRCUITRY
. TONE AND SWITCHING FREQUENCIES AD JUSTABLE BY EXTERNAL COMPONENTS
. INTEGRATED VOLTAGE AND CURRENT HYSTERESIS
. COMPLEMENTARY OUTPUT CONFIGURATION
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
ST |
22+ |
SO-8 |
5000 |
原裝現(xiàn)貨庫存.價(jià)格優(yōu)勢(shì)!! |
詢價(jià) | ||
ST |
92+/ |
SOP |
4 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
ST/意法 |
21+ |
SOP-8 |
20000 |
百域芯優(yōu)勢(shì) 實(shí)單必成 可開13點(diǎn)增值稅發(fā)票 |
詢價(jià) | ||
ST/意法 |
2022+ |
SOP-8 |
18800 |
原廠代理 終端免費(fèi)提供樣品 |
詢價(jià) | ||
ST |
589220 |
16余年資質(zhì) 絕對(duì)原盒原盤 更多數(shù)量 |
詢價(jià) | ||||
ST |
2213+ |
SOP |
11653 |
一級(jí)代理/分銷渠道價(jià)格優(yōu)勢(shì) 十年芯程一路只做原裝正品 |
詢價(jià) | ||
ST |
23+ |
SOP |
10000 |
原裝正品現(xiàn)貨 |
詢價(jià) | ||
ST |
24+ |
SOP-8 |
1556 |
詢價(jià) | |||
INTESIL |
2407+ |
SSOP |
7750 |
原裝現(xiàn)貨!實(shí)單直說!特價(jià)! |
詢價(jià) | ||
ST |
24+ |
SOP8 |
35400 |
全新原裝現(xiàn)貨/假一罰百! |
詢價(jià) |
