价格:未填
供应:99999
发货:3天内
HT9020B -- Call Progress Tone Detector
General Description
The HT9020B call progress tone detector is a telecom peripheral for Auto-dialing system use.
Switched capacitors technology is implemented into the chip to get good performance characteristics of band pass filter in the range of 305 to 640Hz call progress tone which is dual tone multi-frequency signal.
When it detected CPT signal then it generates relative envelopes for external microcontroller decision to finish different kinds of CPT signal detection such as dial tone, busy tone, ring-back tone and reorder tone.
上海辰祥电子科技有限公司 联系人:周平 13917885749
Features
Operating voltage: 2.5V to 5.5V
Low power consumption
Low cost 32768Hz crystal
CPT Band: 305~640Hz detection
Good performance:
-8 ~ -39dBm at VDD=2.5V
0 ~ -27dBm at VDD=5V
8-pin DIP/SOP packages
供应HT9020B 8SOP 合泰芯片、辰祥电子
日期:2011-11-27 12:10 点击:5
联系方式
公司:上海辰祥电子科技有限公司
发信:点此发送
姓名:周平(先生)
电话:08602164904120
手机:13917885749
传真:08602154460553
地址:上海市上海闵行区放鹤路2323弄15号402
邮件:zhouping0629@126.com
发信:点此发送
姓名:周平(先生)
电话:08602164904120
手机:13917885749
传真:08602154460553
地址:上海市上海闵行区放鹤路2323弄15号402
邮件:zhouping0629@126.com