SI824XCLASSD-KIT Silicon Laboratories Inc, SI824XCLASSD-KIT Datasheet - Page 12
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SI824XCLASSD-KIT
Manufacturer Part Number
SI824XCLASSD-KIT
Description
BOARD EVAL FOR SI824X
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI8241CB-B-IS1.pdf
(30 pages)
Specifications of SI824XCLASSD-KIT
New! Us2012 Catalog Page
Class-D Audio Driver_Precision Clock ICs
Board Type
Fully Populated
Amplifier Type
Class D
Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
120W x 2 @ 8 Ohm
Utilized Ic / Part
Si824x
Description/function
Audio Amplifiers
Operating Supply Voltage
12 V
Output Power
30 W to 1000 W
Product
Audio Development Tools
Supply Current
500 mA
For Use With/related Products
Si824x
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Operating Temperature
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
336-2002
Si824x
3. Functional Description
The operation of an Si824x channel is analogous to that of an opto coupler and gate driver, except an RF carrier is
modulated instead of light. This simple architecture provides a robust isolated data path and requires no special
considerations or initialization at start-up. A simplified block diagram for a single Si824x channel is shown in
Figure 5.
Transmitter
Receiver
Driver
RF Oscillator
V
DD
Semiconductor-
Dead
Based Isolation
B
A
Time
Modulator
Demodulator
Barrier
0.5 to 4 A
Generator
peak
Gnd
Figure 5. Simplified Channel Diagram
A channel consists of an RF Transmitter and RF Receiver separated by a semiconductor-based isolation barrier.
Referring to the Transmitter, input A modulates the carrier provided by an RF oscillator using on/off keying. The
Receiver contains a demodulator that decodes the input state according to its RF energy content and applies the
result to output B via the output driver. This RF on/off keying scheme is superior to pulse code schemes as it
provides best-in-class noise immunity, low power consumption, and better immunity to magnetic fields. See
Figure 6 for more details.
Input Signal
Modulation Signal
Output Signal
Figure 6. Modulation Scheme
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