Friday, May 27, 2016

PGA2311 Volume Control Module

PGA2311 Volume Control Module (fully built and tested)


PGA2311UA - SMT, stereo version - U$89
PGA 2311UA - SMT balanced version - U$129
PGA 2311PA - through hole version - add U$10






Features
  • PGA2311 version 10 with Panasonic relays
  • BB PGA2311 - brand new volume control chip, with internal resistive attenuator network, where under 0dB, the internal OPAMP is not activated, and where over 0dB, the OPAMP starts to work.
  • Board settings: -95dB to +31dB, 1dB step
  • AC 8V-12Vac input
  • Fully regulated with On-Semicon 3-pin regulators. Digital section is powered by MC7805 separately for lowest interference. 
  • Digital and analog supplies are decoupled by Philips 104 decoupling capacitors for better noise isolation/separation
  • Separate IC for digital and relays control.
  • STC15 series of controller is used, with off-power memory storage
  • Uses original Panasonic TQ2 relays, lowering the signal loss
  • Remote power off module is available for purchase
  • Controller board and display board can be connected physically or via cable
  • Paired with high quality ALU remote control
Note:
* Limited availability of PGA2311-A version with half the THD.
* Compatible chassis is available - ask us for more details  

Operating instructions:
  • Rotate left/right - volume control
  • Short press  - channel switch
  • Long press (3s) - power ON/OFF
  • Long press (10s) - reset to default values
  • Short press (during off) - power ON
  • Remote - V+/0: volume, CH+/-: channel switch, Power: on/off, DSP: display current input, Mute: mute.
  • 0dB = direct through
  • Input: CH1, CH2, CH3, CH4
  • Mute: ---
  • Off: .
  • Power on display: PGAVOL
Note: We can do a fully built preamp if you wish. Email us for various available options. 

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