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The recovered audio signal will pass a digital as well as an analog filter stage to eliminate out-of-band components and is amplified to the maximum output power of 200 W to drive a speaker unit. By receiving the signal in a digital format, noise and quality losses that are inherent with conventional analog systems are avoided. The Model 1200 receiver/ amplifier will apply forward error correction to the received signal in order to maximize reception robustness. The amplifier is a digital (class D) amplifier. The typical power efficiency is 90 %. The Model 1200 receiver/ amplifier will enter a Power-Down Mode if no valid signal is received. It will return to active mode when a valid signal is detected. © 2000 Amphony January 2000 1 2.4 GHz Digital Audio Receiver/ Amplifier Model 1200 Amphony Reference Data (Preliminary) PARAMETER CONDITIONS MIN. TYP. MAX. UNIT OVERALL PERFORMANCE Dynamic range A-weighted 89 94 dB Output power THD = 10%, 8 Q, Vp = 60 V 200 W THD = 0.5%, 8 Q, Vp = 60 V 150 W Non-repetitive peak output current tbf A Repetitive peak output current tbf A Total harmonic distortion Po = 1 W 0.1 0.3 % Low frequency roll-off tbf Hz High frequency roll-off tbf kHz Noise output voltage RS = 0, Note 1 140 280 RS = 10 kQ, Note 1 140 Supply voltage ripple rejection 66 dB Reception range line of sight, Note 2 200 ft through obstructions, Note 2 60 ft line of sight, Note 3 100 m through obstructions, Note 3 30 m DC POWER CHARACTERISTICS DC supply voltage 30 50 60 V Power consumption Peak output power 4 A Quiescent current 230 mA Power-down mode 165 mA Notes: 1) Noise output voltage measured in a bandwidth of 20 Hz to 20 kHz 2) When used in conjunction with a Model 1000 or Model 2000 transmitter, American model 3) When used in conjunction with a Model 1000 or Model 2000 transmitter, European model © 2000 Amphony January 2000 2 2.4 GHz Digital Audio Receiver/ Amplifier Model 1200 Amphony Contacting Amphony Support For contact details and Local Sales Representatives, visit the Amphony web site at: Amphony has made best efforts to ensure that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of any kind (express or implied). No responsibility is assumed by Amphony for the use of this information, nor for infringements of patents or other rights of third parties. This document is the property of Amphony and implies no license under patents, copyrights, trademarks, or trade secrets. No part of this publication may be used as a basis for manufacture or sale of any items without the prior written consent of Amphony. The names of products of Amphony or other vendors and suppliers appearing in this document may be trademarks or service marks of their respective owners which may be registered in some jurisdictions. A list of Amphony trademarks and service marks can be found at © 2000 Amphony January 2000 3...