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| TNT4882-BQ资料 | |
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TNT4882-BQ PDF Download |
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File Size : 116 KB
Manufacturer:NATIONAL Description:The TP3070 and TP3071 are second-generation combined PCM CODEC and Filter devices optimized for digital switch- ing applications on subscriber line and trunk cards. Using advanced switched capacitor techniques, COMBO II com- bines transmit bandpass and receive lowpass channel filters with a companding PCM encoder and decoder. The devices are A-law and µ-law selectable and employ a conventional serial PCM interface capable of being clocked up to 4.096 MHz. A number of programmable functions may be controlled via a serial control port. Channel gains are programmable over a 25.4 dB range in each direction, and a programmable filter is included to en- able Hybrid Balancing to be adjusted to suit a wide range of loop impedance conditions. Both transformer and active SLIC interface circuits with real or complex termination im- pedances can be balanced by this filter, with cancellation in excess of 30 dB being readily achievable when measured across the passband against standard test termination net- works. To enable COMBO II to interface to the SLIC control leads, a number of programmable latches are included; each may be configured as either an input or an output. The TP3070 pro- vides 6 latches and the TP3071 5 latches. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：TNT4882-BQ 厂 家：NATIONAL 封 装：QFP 批 号：09+ 数 量：250 说 明：绝对原装正品现货 |
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运 费： 所在地：深圳 新旧程度： |
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| 联系人：陈小姐 |
| 电 话：0755-83605789 |
| 手 机：13428979109 |
| QQ：656259901,307704921 |
| MSN：chenqiongxia18@126.com |
| 传 真：0755-23816523 |
| EMail：656259901@qq.com |
| 公司地址： 广东深圳市福田区华强北（振华路）赛格高科德电子市场A1848室 |
