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TA0313 Datasheet(PDF) 2 Page - STMicroelectronics |
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TA0313 Datasheet(HTML) 2 Page - STMicroelectronics |
2 / 9 page 2/9 TA0313 STMicroelectronics Solutions for ADSL Line Interfaces The line interface - ADSL remote terminal (RT) Figure 2 shows a typical analog line interface used for ADSL. The upstream and downstream signals are separated from the telephone line by using an hybrid circuit and a line transformer. On this note, emphasis will be placed on the emission path. The emission path The features of the TS613 and TS612 drivers are shown in Table 1 below. In order to shrink the line interface size, the TS613 comes in the classic SO8 plastic package as well as the SO8 ExposedPAD plastic package, capable of dissipating 1.7W at room temperature. While this circuit does not feature a power-down function, it does have the advantage of featuring a standard pin- out. Figure 2: Typical ADSL Line Interface Table 1: Features of drivers GBP (MHz) BW Gain=4 MHz) SR (V/µs) Iout typ. (mA) Noise ( nV/ √Hz) Icc per op. (mA) HD2/HD31 (dBc) 1) Single ended 4Vpp/100kHz on 25 Ω//15pF Vout diff. (Vpp min) Packages TS613 VFA 130 34 40 320 3 11 74/79 18 SO8 SO8 Exposed Pad TS612 VFA 130 34 40 320 3 14 74/79 18 SO20 Batwing HYBRID POTS SPLITTER line TRANSMISSION RECEPTION TS613 TS612 AFE 25 Ω 12.5 Ω TX RX DMT 12.5 Ω HYBRID POTS SPLITTER line TRANSMISSION RECEPTION TS613 TS612 AFE 25 Ω 12.5 Ω TX RX DMT 12.5 Ω |
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