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2000 Amphony
January 2000
1
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2.4 GHz Digital Audio Receiver/ Amplifier Model 1200
Product Specification
Features
·
200 W Output Power
·
Digital (class D) amplifier
·
94 dB Dynamic Range
·
90 % power efficiency
·
Avoids quality losses due to audio
compression
·
128 times digital interpolation filter stage and
analog filter stage
·
Range of up to 300 ft (line of sight)
·
Avoids reception errors by employing
½ rate forward error correction
·
Mute Function
·
No switch-on/ switch-off plops
·
Short-circuit Safe Output
·
Only one supply voltage required
·
Power-Down Feature
Applications
·
Wireless home theater systems
·
Wireless hi-fi stereo speaker systems
General Description
The Model 1200 receiver/ amplifier will receive
a digital audio signal that is being transmitted in
the 2.4 GHz range by either the Model 1000 or
Model 2000 transmitter. 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.
