User's Manual

SAM-200-TR Steaming Audio Module 5 Ver. 0.12j 12/22/2009
PRELIMINARY USER MANUAL SUBJECT TO CHANGE WITHOUT NOTICE
Copyright © 2009 Aerielle, LLC All Rights Reserved.
APPLICATION INFORMATION
1. Power Supply
The power supply inputs are designed to run off of a variety of batteries. The level must remain above
4.0V at the rated currents or unstable operation will result. Suggested battery types:
• 3.8V – 4.2V in one LiIon cell
• 4.8V – 7.2V in 4 – 6 NiCd or NiMH cells
• 4V – 9V in 4 – 6 Alkaline cells (0.8 – 1.0V end-of-life cell voltage assumption)
2. Audio Inputs
The module is designed for three different types of audio inputs.
• Headphone-level audio from personal audio players
• Line-level audio from standard audio components
• Balanced audio from microphones (pre-amplified) or musical/PA equipment
The module has two sets of inputs on its main connector. These can be solder-jumper-configured for
headphone and line level (default), or headphone and balanced. The quick-connect port can host only
one type of input or one type of output, selected by solder jumpers. Headphone, line, and balanced
inputs are available on the quick-connect port.
On the main connector, the IN_SEL line selects between the two sets of inputs on that connector.
Audio Input Selection
IN_SEL Audio Input Setting
0 Headphone-level input
1 Line-level or balanced input
3. Audio Outputs
Like the inputs, the module is designed for three different types of audio outputs.
• Headphone-level audio to earbuds or standard headphones
• Line-level audio to standard audio components
• Balanced audio to musical/PA equipment
The module has two sets of outputs on its main connector. These can be solder-jumper-configured for
headphone and line level (default), or headphone and balanced. The quick-connect port can host only
one type of input or one type of output, selected by solder jumpers. Headphone, line, and balanced
outputs are available at the quick-connect port.