PlainDAC. PolyVection. embedded audio solutions DATASHEET. PlainDAC chip on module page

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1 PlainDAC DATASHEET Audiophile digital-to-analog converter module with I2S input Document revision 1.0 July

2 1 FEATURES Audiophile I2S DAC module Texas Instruments PCM5100 or PCM5121 or PCM5142 Two integrated ultra-low noise LDO s for separated supply of DVDD and AVDD ESD protection on all input and output pins Foil type shunt capacitors Playback up to 384 khz / 32 bit RCA output connectors Up to 2.1 VRMS output voltage 40 pin 0.5mm FPC input connector 10 pin 2.54 mm header as test points or input 5 pin 2.54 mm header as analog out and GPIO access 2 APPLICATIONS General A/V equipment Prototyping of audio systems Low to medium volume production 3 DESCRIPTION PlainDAC is the latest generation of easy to integrate and highly audiophile digital-to-analog converters on a single module. It allows easy and fast building of prototypes and reduces time-to-market significantly when used in the final product. The standard version features a PCM5121 chipset from Texas Instruments which offers best price/performance ratio. On request it is also available with PCM5100 or PCM5142. The PlainDAC module comes with a standard RCA connector (red/white), has four 2.75 mm mounting holes as well as a convenient 40 pin FPC connector for feeding power and all external signals. For volume orders we can provide several interconnection adapters for this 40 pin connector. For prototyping purpose and signal integrity measurement there is an unpopulated 10 way 2.54 mm pin header to gain access to the I2S + I2C bus as well as the power supply. All input and output signals are protected with TVS diodes to prevent ESD damages. 4 BLOCK DIAGRAM 5V LDO 5V LDO TVS 3V3 3V3 40 pin FPC connector I2S I2C 5V 10 pin DBG I2S I2C I2C ADR 1 PCM51XX DAC ANALOG OUT GPIO R L s 5 pin DBG TVS I2C ADR 2 TVS 2

3 Table of Contents 1 Features Applications Description Revision History Device Comparison Dimensions Pins and Connections Electrical specifications ESD Protection General Usage Guidelines Setup and Operating Instructions Regulatory information Safety Warnings Disclaimers Revision History July 2016 / Initial release 3

4 5 Device Comparison The standard version of PlainDAC is equipped with the PCM5121 DAC IC from Texas Instruments. For volume orders there is the possibility to equip it with either a PCM5100 or a PCM5142 depending on the customer requirements. See the following table for comparison. DAC IC PCM5100 PCM5121 PCM5142 Dynamic Range 100 db 106 db 112 db THD -90 db -92 db -93 db Sampling Rates 8 khz to 384 khz 8 khz to 384 khz 8 khz to 384 khz Volume control No Yes Yes Custom DSP instructions No No Yes Hardware control mode Yes No No I2S master/slave SLAVE BOTH BOTH 6 Dimensions 4

5 7 Pins and Connections Left out Right out P1 Left out Right out AGND GPIO4 GPIO6 1 row / 2.54 mm not populated 1 40 P2 5V input GND GND I2C ADR1 LRCK DATA BCK MCLK SCL SDA 2 row / 2.54 mm not populated I2C ADR2 P3 40 pin FPC connector PolyCore1 compatible 0.5 mm pitch Molex Pin Description Pin Description 1-2 GND 30 I2S MCLK 3-12 N.C N.C. 13 GND 33 I2S Data N.C. 34 N.C. 24 SDA 35 I2S BCK 25 SCL 36 I2S LRCK N.C. 37 N.C. 28 GPIO3 38 GND 29 N.C V input 5

6 8 Electrical Specifications Absolute Maximum Ratings Min Max 5V input -0.3 V 6 V Digital input -0.3 V 3.9 V Operating junction temperature -40 C 130 C Storage temperature -65 C 150 C Recommended Operating Conditions Min Nom Max 5V input power supply voltage 3.4 V 5 V 5.5 V Digital signal input 2.4 V 3.3 V 3.46 V Analog line output resistance 1 kohm 10 kohm Digital output load capacitance 10 pf Operating junction temperature -40 C 130 C For more detailed specifications and descriptions regarding the DAC IC and its functions please see the official vendor datasheet for the specific chip. 9 ESD Protection PlainDAC features advanced ESD protection. Great care was taken during development to implement useful protection to minimize potential ESD damage. There are two 5 channel 3V3 unidirectional TVS diodes to protect all the digital input and output signal pins. The 5 volt input and the both analog output channels are each protected by a separate 5V bidirectional TVS diode. 6

7 10 General Usage Guidelines The PlainDAC module can be used for prototyping and small volume manufacturing. Before using PlainDAC always make sure that you have understood and compile with your local laws and regulatory regarding prototyping with electronic devices. PlainDAC is NOT sold as a final and/or certified end product. It is designed to work best when using the 40 pin FPC input connector either in combination with our PolyCore1 platform or one of the adapter boards. Remember that when using the unpopulated P2 header for feeding the digital signals you are creating little stubs on the PCB between P2 and P3. This is okay for prototyping but you should keep that in mind when feeding high frequency master clocks. ONLY FOR PROTOTYPING: I2S input 40 pin FPC connector STUB! 10 pin DBG P2 I2S internal PCM51XX DAC P3 RECOMMENDED: I2S input 40 pin FPC connector 10 pin DBG I2S internal I2S internal PCM51XX DAC P2 P3 7

8 11 Setup and Operating Instructions Always disconnect any power supplies before attaching or removing cables! Either connect the PlainDAC module to your host system using a 40 pin FPC cable or jumper wires. Also connect your audio equipment to the both RCA connectors. After double checking all cables for their correct position insert the power supply of your host. The standard version of PlainDAC comes with a PCM5121 DAC chip. If your host can supply an audio master clock, PlainDAC will play at full volume as soon as there is valid audio data coming in via I2S. If your host only supplies BCK, LRCK and DATA the PCM5121 needs several instructions via I2C to generate the master clock internally using PLL. Refer to the documentation of your host system and the PCM51XX Linux driver for how to do this in detail. Both I2C address pins are internally pulled low through 10 K resistors. The address on the I2C bus is 0x4c in this case. Alternatively, you can connect one or both externally to 3V3. This results in up to 4 different addresses. 12 Regulatory information PlainDAC generates, uses and can radiate radio frequency energy and has not been tested for compliance with any regulatory requirements (e.g. CE, FCC). PlainDAC is not sold as a finished product and may not be resold or otherwise marked unless all required regulatory authorizations are first obtained. 13 Safety Warnings User must read and apply the user guide / datasheet and other available documentation provided by regarding the PlainDAC prior to handling or using PlainDAC, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages. PlainDAC is intended to be used solely by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, subsystems. Use PlainDAC in laboratory test environment only. Never leave it unattended while in use. Never operate PlainDAC outside of it s recommended operating specifications otherwise it may cause personal injury or death or property damage. 8

9 14 Disclaimers TO THE MAXIMUM EXTENT PERMITTED UNDER APPLICABLE LAW, POLYVECTION, AND ITS SUPPLIERS, SHALL NOT BE LIABLE TO YOU, OR ANY THIRD PARTY, FOR ANY INDIRECT, EXEMPLARY, SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND ARISING IN ANY WAY OUT OF USE OF THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, LOSS OF PROFITS, REVENUES OR DATA, OR COSTS OF REPLACEMENT GOODS, EVEN IF POLYVECTION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF ANY LIMITED REMEDY OF ITS ESSENTIAL PURPOSE. TO THE MAXIMUM EXTENT ALLOWED UNDER APPLICABLE LAW, EXCEPT FOR THE EXPRESS LIMITED WARRANTIES SET FORTH ABOVE, PRODUCTS ARE PROVIDED AS IS AND AS AVAILABLE AND POLYVECTION AND ITS SUPPLIERS MAKE NO WARRANTIES UNDER THIS AGREEMENT, EXPRESS, IMPLIED, OR STATUTORY, BY OPERATION OF LAW OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF TITLE, NON- INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR ANY IMPLIED WARRANTIES ARISING OUT OF COURSE OF PERFORMANCE, COURSE OF DEALING OR USAGE OF TRADE UNDER OR IN CONNECTION WITH THE PRODUCTS. POLYVECTION DOES NOT WARRANT THAT THE PRODUCTS AND CONTENT WILL OPERATE ERROR-FREE, UNINTERRUPTED, OR THAT THEY WILL BE SECURE OR VIRUS-FREE. NO ORAL OR WRITTEN INFORMATION OR ADVICE GIVEN BY POLYVECTION, ITS AGENTS OR OTHER REPRESENTATIVES OR EMPLOYEES SHALL IN ANY WAY INCREASE THE SCOPE OF POLYVECTION S WARRANTIES UNDER THIS AGREEMENT. WITHOUT LIMITING THE GENERALITY OF THE FORGOING, POLYVECTION AND ITS SUPPLIERS DO NOT MAKE, AND EXPRESSLY DISCLAIM, ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, RELATED TO ANY THIRD PARTY INTELLECTUAL PROPERTY, TECHNOLOGY OR INFORMATION PROVIDED AS PART OF THE PRODUCT OR DOCUMENTATION. WE MAY REVISE THIS DATASHEET AT ANY TIME. ALWAYS MAKE SURE YOU USE THE LATEST ONE. UG Habelschwerdter Allee Berlin GERMANY 9