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SY-DAPx002 UG
World's First
TPA32xx Based DSP Integrated
Portable Desktop HiFi Amplifier
SY-DAPx002 series DIYable desktop amplifier are
high quality, high fidelity class D
audio amplifier base on
Texas Instruments PurePath™ Ultra-HD
TPA32xx series chip-
set, integrated high efficiency low noise Quasi-Resonant power supply, Sigma DSP
and Bluetooth 5.0 wireless audio streaming.
with highly customized design by our technology, this bran-new desktop amplifier
has many new features and committable performance on its unique design.
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Rev 1.0
1
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Summary of Contents for 3e audio SY-DAP 002 Series
- Page 1 SY-DAPx002 UG World’s First TPA32xx Based DSP Integrated Portable Desktop HiFi Amplifier SY-DAPx002 series DIYable desktop amplifier are high quality, high fidelity class D audio amplifier base on Texas Instruments PurePath™ Ultra-HD TPA32xx series chip- set, integrated high efficiency low noise Quasi-Resonant power supply, Sigma DSP and Bluetooth 5.0 wireless audio streaming.
- Page 2 Use the voltage specified on this unit Only. Using this unit with a higher voltage than specified is dangerous and may cause fire, damage to this unit, or personal injury. 3e audio will not be held responsible for any damage resulting from the use of this unit with a voltage other than that specified.
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Page 3: Key Features
SY-DAPx002 UG Key Features Texas Instruments TPA32xx PurePath™ Ultra-HD Analog-Input high performance Class-D power amplifier that enables true premium sound quality. Efficiency up to 90%, further reduce power dissipation and thermal. 28-/56-bit, 50 MIPS digital audio processor(ADAU1701) with build-in ADCs and DACs for full integrated audio path processing and control. -
Page 4: Specifications
SY-DAPx002 UG Specifications RCA, Bluetooth (5.0 aptX) Audio Inputs RCA is default input, auto switch to Bluetooth input when audio is active Speaker 4ohm(Minimum) ~ 8ohm(recommended) Impedance Maximum Peak Power depend on power supply capability in varied system Input RCA: 1Vrms(adjustable) Sensitivity Bluetooth: 0dBFS SY-DAP1002: 50Wx2(8Ω) - Page 5 SY-DAPx002 UG User Interface and Instructions Multi-function Key: All UI control are implement by single Key combined potentiometer for volume. Power On and Off 1. Short press will turn unit ON from standby mode 2. Press and hold 2S will turn unit OFF from working mode ...
- Page 6 SY-DAPx002 UG Bluetooth pairing: 1. Continues fast press 2 times and hold 2S at second press till middle LED flickering indicate entry Bluetooth pairing mode, searches via phone and selects “SY-DAP1002 or SY-DAP2002” 2. Continues fast press 2 times and hold 5S at second press till all LED flickering to clear pairing list in case you used many device and fail on connection 3.
- Page 7 SY-DAPx002 UG DIY Instructions For some DIY consideration to have more fun and more enjoyable to our product, and meeting some special user case integration, we highly putting most of the diyable into our design and offering as many as possible to user to satisfy their potential changing chance.
- Page 8 SY-DAPx002 UG By default, there are 3 options inside User EQ block as figure 2, default setting is bypass without no any EQ on this product, user can select Param EQ or Auto EQ for their tuning, Auto EQ design is more complex and require more experience. Reference material: https://wiki.analog.com/resources/tools- software/sigmastudio/toolbox/adialgorithms/automaticspeakereq...
- Page 9 SY-DAPx002 UG Figure 4: Auto EQ Block A dedicated download tool: EVAL-ADUSB2EBZ (from analog device) or USBi/Free USBi (low cost) is need for SigmaStudio online design and F/W burn into EEPROM. There is an onboard USBi connector for online debug and programing, show as figure 4, please note that only SCL, SDA and GND signals are available, there is no any power supply output and the rest PINs are no connected.
- Page 10 SY-DAPx002 UG Audio OP-Amp swapping: A traditional DIY way is by replacing different kind of op-amp to have all kind of sound experience as they expect, based on this consideration we put changeable op-amp into this product design by using a typical DIP-8 footprint. user can replace with same package size and it is easy to swap them anytime.
- Page 11 SY-DAPx002 UG Figure 6: SY-DAP1002 Components location ____________________________________________________________________________________________________________ Rev 1.0...
- Page 12 SY-DAPx002 UG Figure 7: SY-DAP2002 Components location ____________________________________________________________________________________________________________ Rev 1.0...
- Page 13 SY-DAPx002 UG Analog Input Sensitivity adjusting: By default, the design setting on this product, compatible with most of the DAC device including low level output from a cell phone, it takes 1Vrms input level for a sensitive input to get rate output power. But in some case user keep using other high level output DAC device and the output level is hard to adjust at some point, then take this case into account, by changing a smaller setting in circuital will be a good implementation for using higher level input device.
- Page 14 SY-DAPx002 UG Q&A TPA3250 vs TPA3255 which one is better? TPA3250 is better than TPA3255 regarding THD,Noise and Efficiency,TPA3250 design is smaller and more compacted, the advance of TPA3255 is only can output higher power, but has higher thermal lose also. they are the same level on audio quality point of view.
- Page 15 SY-DAPx002 UG Revisions Revision Change Logs Date Initial version Nov,2020 ____________________________________________________________________________________________________________ Rev 1.0...