Quick Start Guide
TWR-AUDIO-SGTL
Audio peripheral module with
SGTL5000 codec
TOWER SYSTEM
Quick Start Guide
Get to Know the TWR-AUDIO-SGTL
Stereo Headphones
DC Isolated
(3.5 mm)
Stereo Headset
(3.5 mm)
Stereo Headphones
Virtual Ground
(3.5 mm)
Microphone In
(3.5 mm)
Analog Stereo
Audio Line In
(3.5 mm)
Analog Stereo
Audio Line
Out (3.5 mm)
Figure 1: Front Side of TWR-AUDIO-SGTL Module
TWR-AUDIO-SGTL
Freescale Tower System
The TWR-AUDIO-SGTL module is part of the Freescale Tower System,
a modular development platform that enables rapid prototyping and tool
re-use through reconfigurable hardware. Take your design to the next level
and begin constructing your Tower System today.
2
TOWER SYSTEM
TWR-AUDIO-SGTL Features
• SGTL5000 low-power stereo codec with headphone amplifier
• Tunable clock generator
• Stereo line in on 3.5 mm jack
• Stereo line out on 3.5 mm jack
• Headphone output on 3.5 mm jack
• Virtual ground capacitor-less headphone output on 3.5 mm jack
• Smartphone compatible headset (headphone output/microphone
input) on 3.5 mm jack
• Microphone input on 3.5 mm jack
• Space provided on board to mount an electret microphone
• Compatible with Tower System processor modules using ColdFire+,
Kinetis K and L series MCUs and Vybrid controllers
3
Quick Start Guide
Step-by-Step Installation Instructions
To evaluate and develop with the modular Freescale Tower System development
platform, a minimum of three basic modules are required for complete assembly.
1
2
3
MCU/MPU
module
Acts as the main control module for
the system
Peripheral module
(i.e., TWR-AUDIO-SGTL)
The TWR-AUDIO-SGTL module comes
with its jumpers in the default positions,
as shown in the jumpers section. Please
consult the TWR-AUDIO-SGTL User
Manual (found on
freescale.com/Tower)
for more information on the TWR-AUDIO-
SGTL functionality and for other jumper
configurations.
When assembling the TWR-AUDIO-SGTL
module and the MCU module into the
elevator modules, please ensure that
the modules occupy adjacent slots and
that the primary edge connector (marked
with a white stripe along the primary
edge of the module) is inserted into the
primary elevator module (denoted with
white connectors). See the instructions
in the TWR-ELEV Quick Start Guide for
the elevator modules for proper Tower
System assembly.
Adds features and functionality to
your system
Two elevator modules
(primary and secondary)
Provides power, easy signal access and
side mounting expansion
4
TOWER SYSTEM
TWR-AUDIO-SGTL Jumper Options
The following is a list of all jumper options. The default installed jumper settings are
indicated by the white text within the black boxes.
TWR-AUDIO-SGTL Jumpers
Jumper
J1
Option
Adds 4.7k Ohm pull-up
resistor to I
2
C SDA data line
Adds 4.7k Ohm pull-up
resistor to I
2
C SCL data line
Reset shutdown selection
Setting
ON
OFF
ON
OFF
1-2
2-3
J5
Disable audio codec
ON
OFF
J6
Master clock source
selection
Microphone input selection
OFF
ON
3-5
3-4
1-3
J14
Microphone bias
1-2
OFF
Description
Pull-up added
Resistor disconnected
Pull-up added
Resistor disconnected
No shutdown
Hardware reset causes shutdown cycle
Audio codec enabled
Audio codec disabled
Si5351A (24.576 MHz default)
MCLK from processor module
External microphone
Internal microphone
Smartphone headset
Microphone bias applied
Microphone bias not applied
5
J2
J3
J11
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
