公司成立於1980年,為電子零件之代理商及經銷商,早期代理日本進口Crystal、Oscillator及代理加拿大Mitel Semiconductor等通訊IC,後陸續增加各類型日歐系進口品牌電池(Panasonic, RENATA..)、電池客製化加工品、排組、開關等產品, 並投資Crystal、Oscillator行銷自我品牌"K.C.C",逐步提升零件品質與市場需求,產品符合各項綠色環保產品要求,以滿足客戶成長之需。
我們將持續追求卓越、服務客戶,以滿足客戶需求,解決客戶困難為目標,期能與客戶再共創高峰。
HOLTEK HT9170D(DTMF Receiver)
分類: |
IC(Integrated Circuit) |
廠牌: |
HOLTEK |
產地: |
台灣 |
封裝樣式: |
18-PIN SOP |
包裝: |
管裝 |
{{variant.name}}:
|
{{opt.name}}
{{opt.name}}
|
Features
● Operating voltage: 2.5V~5.5V
● Minimal external components
● No external filter is required
● Low standby current (on power down mode)
● Excellent performance
● Tristate data output for MCU interface
● 3.58MHz crystal or ceramic resonator
● 1633Hz can be inhibited by the INH pin
● HT9170D: 18-pin SOP package
General Description
The HT9170B/D are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit mode operations. Such devices use digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output.
Highly accurate switched capacitor filters are imple-mented to divide tone signals into low and high group signals. A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.