S100 Slave - Audio Codec SGTL5000
The S100 Slave - Audio Codec SGTL5000 Module is a certified Rhomb.io Module that carries the NXP SGTL5000 audio codec, a low-power stereo codec that includes a headphone amplifier. It has been designed to provide a comprehensive audio solution for portable products that require line-in, microphone-in, line-out, headphone-out and digital I/O. The Module includes a microphone on the board.
The next figure shows a 3D view for the S100 Slave - Audio Codec SGTL5000 Module.
- Media players
- Smart devices
- Consumer audio equipment
The S100 Slave - Audio Codec SGTL5000 Module mounts the NXP SGTL5000, a low power stereo codec with headphone amplifier from Freescale.
The SGTL5000 accepts the following inputs:
- Line input
- Microphone input, with mic bias
- Digital I2S input
In addition, the SGTL5000 supports the following outputs:
- Line output
- Headphone output
- Digital I2S output
The SGTL5000 can accept an external standard master clock at a multiple of the sampling frequency. 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, 12 kHz, 16 kHz, 22.05 kHz, 24 kHz, 32 kHz, 44.1kHz, 48 kHz, 96 kHz sampling frequencies.
A miniature, high-performance, low power microphone is include on the board. By default, the on-board microphone is connected directly to the audio codec, put you can use an external microphone if you open de solder-jumper and you solder it on the pads. In this mode, if you solder a 7 pin jack connector and you connect a headset, the Module will switch automatically between the on-board microphone and the headset microphone.
The following figure identifies the main components onboard:
The "Audio Jack" pads have been designed to solder in them the lines of a 3.5 mm jack connector with the following pinout.
- VGND: Do not connect VGND to system ground, even when unused. This is a virtual ground (DC voltage) that should never connect to an actual “0 Volt ground”.
The next figure shows the block diagram for the S100 Slave - Audio Codec SGTL5000 v1.0 Module:
As a summary, the following table indicates the main features:
|I2S Audio Codec Key Features|
|Low Power Stereo Codec with Headphone|
|Amp based on NXP SGTL5000|
|Designed to provide a complete audio solution for portable products needing LINEIN, mic-in, LINEOUT, headphone-out and digital I/O|
|Integrated Digital Processing|
|Op. Voltage: 1.8 V to 3.3 V|
|Op. Temperature: -40 ºC to +85 ºC|
The following table indicates the available serial interfaces of the Rhomb.io standard used in this Module. This table relates the interfaces of the Rhomb.io standard with the net names of the schematic and with the components to which they are connected.
|Rhomb.io Interface||Schematic Signal||Component||Component Pin|
GPIOs and Control Signals
The following table summarizes the GPIOs and Control Signals used on the S100 Slave - Audio Codec SGTL5000 Module. This table relates the signals of the Rhomb.io standard with the net names of the schematic and with the components to which they are connected.
|Rhomb.io Signal||Schematic Signal||Component||Component Pin|
|1WIRE||1WIRE||ID Memory (U2)||IO|
- 1WIRE: This signal can be used to read the ID Memory.
The S100 Slave - Audio Codec SGTL5000 can use the 1.8 V and the VIO_IN (voltage reference with which the Core/Master operates) rail. Make sure this rail is enabled on the motherboard you are going to plug this Module.
Do not connect VGND to system ground, even when unused. This is a virtual ground (DC voltage) that should never connect to an actual “0 Volt ground”.
You can find more information about power consumption in the SGTL5000 datasheet.
Bill of materials
- Precaution against Electrostatic Discharge. When handling Rhomb.io products, ensure that the environment is protected against static electricity. Follow the next recommendations:
- The users should wear anti-static clothing and use earth band when manipulating the device.
- All objects that come in direct contact with devices should be made of materials that do not produce static electricity that would cause damage.
- Equipment and work table must be earthed.
- Ionizer is recommended to remove electron charge.
- Contamination. Be sure to use semiconductor products in the environment that may not be exposed to dust or dirt adhesion.
- Temperature/Humidity. Semiconductor devices are sensitive to environment temperature and humidity. High temperature or humidity may deteriorate semiconductor devices characteristics. Therefore avoid storage or usage in such conditions.
- Mechanical Shock. Care should be exercised not to apply excessive mechanical shock or force on the connectors and semiconductors devices.
- Chemical. Do not expose semiconductor device to chemical because reaction to chemical may cause deterioration of device characteristics.
- Light Protection. In case of non-EMC (Epoxy Molding Compound) package, do not expose semiconductor IC to strong light. It may cause devices malfunction. Some special products which utilize the light or have security function are excepted from this specification.
- Radioactive, Cosmic and X-ray. Semiconductor devices can be influenced by radioactive, cosmic ray or X-ray. Radioactive, cosmic and X-ray may cause soft error during device operation. Therefore semiconductor devices must be shielded under environment that may be exposed to radioactive, cosmic ray or X-ray.
- EMS (Electromagnetic Susceptibility). Note that semiconductor devices characteristics may be affected by strong electromagnetic waves or magnetic field during operation.
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