Allicdata Part #: | 296-13479-5-ND |
Manufacturer Part#: |
PCM2906DB |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC STEREO AUD CODEC W/USB 28SSOP |
More Detail: | Stereo Audio Interface 16 b USB 28-SSOP |
DataSheet: | PCM2906DB Datasheet/PDF |
Quantity: | 30 |
S/N Ratio, ADCs / DACs (db) Typ: | 89 / 96 |
Base Part Number: | PCM2906 |
Supplier Device Package: | 28-SSOP |
Package / Case: | 28-SSOP (0.209", 5.30mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -25°C ~ 85°C |
Voltage - Supply, Digital: | 4.35 V ~ 5.25 V |
Voltage - Supply, Analog: | 4.35 V ~ 5.25 V |
Dynamic Range, ADCs / DACs (db) Typ: | 89 / 93 |
Series: | -- |
Sigma Delta: | Yes |
Number of ADCs / DACs: | 2 / 2 |
Resolution (Bits): | 16 b |
Data Interface: | USB |
Type: | Stereo Audio |
Part Status: | Not For New Designs |
Packaging: | Tube |
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PCM2906DB is a low-power stereo codec with a 22-bit analog-to-digital (ADC) and a 18-bit digital-to-analog (DAC) converter. It has an integrated headphone driver and to support ear buds as well as direct line-out and microphone input. As a result, it is widely used in many high-fidelity audio applications such as home theatre and multimedia devices, remote controllers, gaming consoles, and portable music players. The PCM2906DB is a part of a wide range of CODECs built by Texas Instruments (TI) for both analog and digital audio processing and professional audio applications.
Application field
The PCM2906DB is designed to integrate with microprocessors, Digital Signal Processors (DSPs) and codecs with a SPI/I2C controller or a microcontroller. It features a low-power, low-cost solution that can deliver premium-quality audio with minimal external circuitry. The analog-to-digital and digital-to-analog converters provide the highest performance in low-voltage audio applications. The integrated headphone driver can deliver peak output up to 10dBV, delivering a wide range of sound and allowing for “no sound distortion” operation in noisy environments. The headphone and line-out outputs are also configurable for Class 1 and Class 2 operation. Additionally, the device can be used with a microphone input, allowing for a variety of acoustic applications.
Working principle
The PCM2906DB uses a two-channel architecture for both the ADC and DAC converters, with a total sampling rate up to 48KHz. The device is powered by a low-power CMOS voltage regulator, allowing it to remain active while consuming minimal power. The analog interface inputs are designed to support dynamic range up to 85dB and wide-dynamic range operation. The PCM2906DB further supports AGC (Automatic Gain Control) and a compressor, both of which help to maintain consistent signal levels and reduce background noise. The integrated “Soft Mute” limiters reduce the levels of the mute points where distortion may occur and can also reduce the impulse noises generated during the input transitions. Finally, the device supports the I2S protocol for easy connection to other processing units.
In conclusion, the PCM2906DB is a highly integrated, low-power, cost-effective CODEC that can be used in a variety of audio applications. Its 22-bit ADC offers the highest performance in low-voltage audio applications, while the integrated headphone driver and dynamic range support for AGC and compressor offers best-in-class performance. The device also utilizes the I2S protocol, allowing for easy connection to other processing units.
The specific data is subject to PDF, and the above content is for reference
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