L3240B1中文資料意法半導(dǎo)體數(shù)據(jù)手冊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
產(chǎn)品屬性
- 型號：
L3240B1
- 制造商：
STMicroelectronics
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
INTERSIL |
23+ |
NA/ |
50 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
ST |
23+ |
NA |
6500 |
全新原裝假一賠十 |
詢價 | ||
ST/意法 |
22+ |
SOP-8 |
100000 |
代理渠道/只做原裝/可含稅 |
詢價 | ||
ST |
92+/ |
SOP |
4 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
ST/意法 |
24+ |
SOP-8 |
37600 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
STM |
23+ |
NA |
806 |
專做原裝正品,假一罰百! |
詢價 | ||
ST/意法 |
22+ |
SOP-8 |
9845 |
只做原裝正品現(xiàn)貨!或訂貨假一賠十! |
詢價 | ||
ST |
24+ |
SOP8 |
35400 |
全新原裝現(xiàn)貨/假一罰百! |
詢價 | ||
ST |
24+ |
SOP-8 |
3200 |
絕對原裝自家現(xiàn)貨!真實(shí)庫存!歡迎來電! |
詢價 | ||
ST/意法 |
21+ |
SOP-8 |
20000 |
百域芯優(yōu)勢 實(shí)單必成 可開13點(diǎn)增值稅發(fā)票 |
詢價 |
