TWR-AUDIO-SGTL Freescale Semiconductor, TWR-AUDIO-SGTL Datasheet - Page 11

• Manufacturer Part Number: TWR-AUDIO-SGTL
• Description: TWR SYS Audio Board
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr

Specifications of TWR-AUDIO-SGTL

• Kit Contents: TWR-AUDIO-SGTL Featuring SGTL5000 Low Power Stereo Codec, Printed Quick Start Guide
• Mcu Supported Families: K20, K50, MCF51Jx
• Kit Features: SGTL5000 Low Power Stereo Codec With Headphone
• Rohs Compliant: Yes
• Design Resources: TWR-AUDIO-SGTL Schematics
• Accessory Type: Module, Audio with CODEC
• Description/function: Audio CODECs
• Mounting Style: Press Fit
• Product: Audio Modules
• Features: SGTL5000 Low Power Stereo Codec With Headphone Amplifier, Stereo Line-in / Line-out On 3.5mm Jack
• Lead Free Status / Rohs Status: Details
• For Use With/related Products: Freescale Tower System

integrated headphone amplifier. It is designed to provide a
complete audio solution for portable products needing line-in,
mic-in, line-out, headphone-out, and digital I/O. Deriving it’s
architecture from best in class Freescale integrated products
that are currently on the market, the SGTL5000 is able to
achieve ultra low power with very high performance and
functionality, all in one of the smallest footprints available.
Target markets include portable media players, GPS units
and smart phones. Features such as capless headphone
design and USB clocking mode (12 MHz SYS_MCLK input)
help lower overall system cost.
• Line input
• Microphone input, with mic bias (mic bias only available in
• Digital I
SYSTEM BLOCK DIAGRAM W/ SIGNAL FLOW AND
GAIN MAP
flow and gain map for the SGTL5000.
Analog Integrated Circuit Device Data
Freescale Semiconductor
The SGTL5000 is a low power stereo codec with
In summary, the SGTL5000 accepts the following inputs:
32QFN version)
Figure 8
LINE_IN
MIC_IN
2
S input
shows a block diagram that highlights the signal
I2S_DIN
I2S_DOUT
30dB, 40dB)
(0dB, 20dB,
MIC GAIN
+6dB
Only Gain is shown for the Digital Audio Processing blocks. For complete description
Mix
22.5dB)
Analog
Gain
(0 to
+12dB
Figure 8. System Block Diagram, Signal Flow and Gain
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
AVC
please see Digital Audio Processing section.
ADC
FUNCTIONAL DESCRIPTION
Surround
Analog Gain
Switch
Audio
INTRODUCTION
Bass Enhancement
DAC Volume
-90dB to 0dB
Control
+6dB
• Line output
• Headphone output
• Digital I
for product differentiation:
• Digital mixer
• Freescale Surround
• Freescale Bass Enhancement
• Tone Control, parametric equalizer, and graphic equalizer
clock at a multiple of the sampling frequency (i.e. 256*Fs,
385*Fs, 512*Fs). In addition it can take non standard
frequencies and use the internal PLL to derive the audio
clocks. The device supports 8.0 kHz, 11.025 kHz, 16 kHz,
22.5 kHz, 24 kHz, 32 kHz, 44.1kHz, 48 kHz, 96 kHz
sampling frequencies.
in a signal path in addition to the signal level does not exceed
0 dB at any point.
Digital Gain
In addition, the SGTL5000 supports the following outputs:
The following digital audio processing is included to allow
The SGTL5000 can accept an external standard master
To guarantee against clipping it is important that the gain
DAC
2
S output
Tone Control /GEQ/PEQ
+12dB
Headphone Volume Control
Line Out Volume Control
(CHIP_LINE_OUT_VOL)
(CHIP_ANA_HP_CTRL)
-52dB to +12dB
FUNCTIONAL DESCRIPTION
INTRODUCTION
LINEOUT
HP_OUT
SGTL5000
11