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THS6184RHFTG4 Datasheet(PDF) 1 Page - Texas Instruments |
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THS6184RHFTG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 4 page www.ti.com FEATURES DESCRIPTION APPLICATIONS + − 1: 1 CODEC V IN+ − + CODEC V IN− 30.1 W 0.1 mF 1 mF 33 nF Line: 100 W 30.1 W 0.1 mF 4.99 kW 4.99 kW 1.15 kW 0.1 mF Line Power = ADSL2: + 19.8 dBm ADSL2+: + 20.4 dBm ADSL2++: + 21.1 dBm +12 V −12 V THS6184 SLLS635 – JANUARY 2005 DUAL-PORT, LOW-POWER DIFFERENTIAL xDSL LINE DRIVER AMPLIFIERS • Trimmed Low-Power Consumption The THS6184 is a dual-port, low-power current feedback differential line driver amplifier system ideal – 4.2-mA/amp Full Bias Mode ; 4.8 mA Max for xDSL systems. Its extremely low-power dissi- – 3.2-mA/amp Mid Bias Mode ; 3.7 mA Max pation is ideal for ADSL, ADSL2, ADSL2+, and – 2.15-mA/amp Low Bias Mode ; 2.5 mA Max ADSL2++ systems that must achieve high densities in – Shutdown Mode and IADJ Pin for Variable ADSL central office rack applications by combining two ports, or four amplifiers, into one package. Bias – Stable Down to 1.6-mA/amplifier The unique architecture of the THS6184 allows the trimmed quiescent current to be much lower than • Low Noise existing line drivers while still achieving high linearity. – 2.9-nV/ √Hz Voltage Noise Distortion at these low-power levels is good with –73 – 5.7-pA/ √Hz Inverting Current Noise dBc THD at 1 MHz with the low bias mode of 4.3 mA/port. Fixed and variable multiple-bias settings of – 0.8-pA/ √Hz Noninverting Current Noise the amplifiers allows for enhanced power savings for • Low MTPR Distortion line lengths where the full performance of the ampli- – –74 dB with ADSL and ADSL2 fier is not required. – –71 dB with ADSL2+ and –70 dB with The wide output swing of 44-Vpp differentially with ADSL2++ ±12-V power supplies coupled with over 410-mA • –83 dBc THD (1 MHz, 100- Ω Differential) current drive allow for wide dynamic headroom, keeping distortion minimized. The THS6184 output • High Output Current: >410 mA (25- Ω Load) stage incorporates extra catch-diodes to the power • Wide Output Swing: 44 Vpp ( ±12-V, 200-Ω supply to minimize the external protection required in Differential) CO systems. With a low 2.9-nV/ √Hz voltage noise • Wide Bandwidth: 45 MHz (Gain = +5) coupled with a low 5.7-pA/ √Hz inverting current noise, the THS6184 increases the sensitivity of the receive • Wide Power Supply Range: ±2.25 V to ±16.5 V signals allowing for better margins and reach. • Ideal For Power Sensitive, High Density ADSL, ADSL2, ADSL2+, and ADSL2++ Systems Figure 1. Typical Line Driver Circuit Using One Port of THS6184 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments. PRODUCT PREVIEW information concerns products in the forma- Copyright © 2005, Texas Instruments Incorporated tive or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. |
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