Monday, February 27, 2012

Pearl CH-02 Chorus

Semi Conductor  in this Circuit

CH-2 major routine board:

  •     IC1: JRC4558DD (dual functional amplifier)
  •     IC2: MN3207 (1024 level BBD)
  •     IC3: MN3102 (BBD driver)
  •     IC4: TL022CP (dual low-power general-purpose functional amplifier)
  •     Q1,Q2,Q3: 2SC2240GR (NPN rubber transistors)
  •     Q4,Q5: 2SC1815Y (NPN rubber transistors)
  •     D1: 1S1588 (switching diode)
  •     D2: UZ-5.1B (5.1V Zener diode)

SW-1 transferring board:

  •     IC1: MC14007UB (Three N-Channel and P-Channel contrasting couple and inverter)
  •     Q1,Q2: 2SC1815Y (NPN rubber transistors)
  •     D1,D2: 1S1588 (switching diodes)
  •     D3: Red LED
  •     D4: MA522 (Lambda diode)

Boss CS-2 Compression Sustainer

Semi conductor component used in the Administrator CS-2 pedal:

  •     IC1: BA662A (VCA - Provide Handled Company IC)
  •     Q1, Q2, Q3: 2SK30ATM-Y (N-channel JFET transistors)
  •     Q4, Q5, Q6: 2SC732TM-GR (NPN plastic transistors)
  •     Q7-Q11: 2SC1815-BL (NPN plastic transistors)
  •     D1: S5500G (400V/1A rectifier diode)
  •     D2-D6: 1S2473 (switching diodes)
  •     D7: RD5.1EB3 (5.1V Zener diode)
  •     LED: SLP135B (red LED)

Saturday, February 25, 2012

Stereo Tone Control Circuit with IC NE5532

  •     Evaluation Reviews Disruption Voltage:
  •     5 nV/Hz Typ at 1 kHz
  •     Unity-Gain Bandwidth: 10 MHz Typ
  •     Common-Mode Refusal Ratio: 100 dB Typ
  •     Greater DC Present Gain: 100 V/mV Typ
  •     Peak-to-Peak Result Present Move 26 V Typ
  •     With VCC± = ±15 V and RL = 600
  •     Greater Number Rate: 9 V/┬Ás Typ


The NE5532 is high-performance efficient amplifiers preparing amazing dc and ac features. They operate very low interference, higher output-drive efficiency, higher unity-gain and maximum-output-swing bandwidths, low disturbances, higher number amount, input-protection diodes, and result short-circuit security. These efficient amplifiers are paid for inner for unity-gain operate. These devices have specified highest possible possible limitations for comparative feedback interference current.
Pic. 1 Layout PCB

Pic.2 Schematic

Low Noise Moving Coil Phono Preamplifier

This preamplifier was designed for low stage of stage of resistance options like going rings heads (MC). The schedule uses in identical three duble transistors SSM2220 or MAT03 and by creating a diferential company keeps noice low. Linking this company before part of a OP27 amp we acquire even decreased disruption. Also the operate we use PNP rather NPN transistors is cause they have les low reliability noise. This Output must conected to Moving Magnet Preamp input.

Friday, February 24, 2012

NE5532 Moving Magnet Phono Preamp

DC to DC ripper alternatives provides a maximum possible possible power of about 36 h at an efficiency of 90%. Besides a modern FET and Schottky diode, this schedule is very well known and cost-effective elements.

This Phono Routine is very low disruption and with little distortions
S/N: about 92%
ripple: 10 mV.
max Outcome current: 1.5 A.
max going frequency: 40 kHz
voltage: 12 V.

3D audio surround system with NJM2701

3D encompass sound brand incorporated routine, can be designed a very simple 3D dynamic encompass system

With optionally available components it can be used to test real tour for evaluation with the results acquired from routine simulator. With the Live 3D breads panel device you can instantly build a life like 3D encompass program routine picture

Wireless Digital Audio Streaming

2.4 GHz sound ICs that change uncompressed CD-quality wifi sound over a organization RF (radio frequency) website weblink, with mistake-free, lossless indication. The alternatives targeted customer, mobile and high-end sound applications, such as wifi headphones, headphones and sound audio audio speakers.
CC85xx key benefits:
  1.     Uncompressed CD-quality wifi audio
  2.     Stone highly effective 16-bit 44.1/48kHz RF link
  3.     Multichannel and multipoint capabilities: managing of up to four many channels
  4.     USB support 

The CC8520 (two-channel) and CC8530 (four-channel) system-on-chips (SoC) are complete incorporated alternatives with RF method, microcontroller, sound codec build assistance, program styles and free PurePath Configurator PC program. In addition, the CC8521 and CC8531 SoCs contain USB sound assistance for all significant techniques.

TI’s PurePath Wifi wireless headset referrals style is the market’s most cost-effective style for top quality earphones and earphones. The style has a low automated bill-of-material price and defines a 22-hour life on a 465 mAh power supply – a 100 percent increase as when in comparison to currently available earphones.

The PurePath Wifi CC8521 and CC8531 USB dongle referrals style allow designers to style low-cost, small USB dongles for wireless sound programs, without value progression or in-depth comprehension of USB methods.