L3240B1中文資料意法半導體數(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
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
INTESIL |
2407+ |
SSOP |
7750 |
原裝現(xiàn)貨!實單直說!特價! |
詢價 | ||
ST |
22+ |
DIP-8 |
5000 |
原裝現(xiàn)貨庫存.價格優(yōu)勢!! |
詢價 | ||
ST |
23+ |
原廠原封 |
16900 |
正規(guī)渠道,只有原裝! |
詢價 | ||
ST |
24+ |
SOP-8 |
1556 |
詢價 | |||
ST/意法 |
24+ |
SOP-8 |
37600 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
ST/意法 |
2022+ |
SOP-8 |
30000 |
進口原裝現(xiàn)貨供應,原裝 假一罰十 |
詢價 | ||
ST |
2447 |
SOP8 |
100500 |
一級代理專營品牌!原裝正品,優(yōu)勢現(xiàn)貨,長期排單到貨 |
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 |
2022+ |
SOP-8 |
18800 |
原廠代理 終端免費提供樣品 |
詢價 | ||
ST |
2511 |
原廠原封 |
16900 |
電子元器件采購降本 30%!盈慧通原廠直采,砍掉中間差價 |
詢價 |
