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TS634ID 数据表(PDF) 8 Page - STMicroelectronics |
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TS634ID 数据表(HTML) 8 Page - STMicroelectronics |
8 / 9 page TS634 8/9 CAPABILITIES The table below shows the calculated compo- nents for different values of k. In this case R2=1000 Ω and the gain=16dB. The last column displays the maximum amplitude level on the line regarding the TS634 maximum output capabilities (18Vpp diff.) and a 1:2 line transformer ratio. MEASUREMENT OF THE POWER CONSUMPTION Conditions: Power Supply: 12V Passive impedance matching Transformer turns ratio: 2 Maximun level required on the line: 12.4Vpp Maximum output level of the driver: 12.4Vpp Crest factor: 5.3 (Vp/Vrms) The TS634 power consumption during emission on 900 and 4550 meter twisted pair telephone lines: 450mW Active matching k R1 ( Ω) R3 ( Ω) Rs ( Ω) TS634 Output Level to get 12.4Vpp on the line (Vpp diff) Maximum Line level (Vpp diff) 1.3 820 1500 3.9 8 27.5 1.4 490 1600 5.1 8.7 25.7 1.5 360 2200 6.2 9.3 25.3 1.6 270 2400 7.5 9.9 23.7 1.7 240 3300 9.1 10.5 22.3 Passive matching 12.4 18 |
类似零件编号 - TS634ID |
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类似说明 - TS634ID |
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