====== BA5SBA SDR-RTL ======
BA5SBA
BA - China

It is adapter board to use with generic USB TV tuner.

Aka:
    * “100KHz-1.7GHz full band UV HF RTL-SDR USB Tuner Receiver/ R820T+8232 Ham Radio”
    * 

[[https://www.rtl-sdr.com/tag/ba5sba/|BA5SBA]]

===== BA5SBA 2016.12.19 =====

[[https://imgur.com/gallery/I4oca]]

Upconverter was nor working, because TCO was mounted incorrectly (rotated). 


{{:linux:rtl-sdr:pasted:20201027-201233.png}}

On PCB bottom, there is a place for 8 pin chip.
Amplifier connected to TV Tuner 28MHz crystal and providing amplified crystal frequency to the same net as VCO.

==== S79 ====
SMD SOT-26 LABEL "S79"
    * AS179-92LF: 20 MHz-3.0 GHz GaAs SPDT Switch

==== C5F ====

C5F SMD 6 pin elelement is used as mixer:

{{:linux:rtl-sdr:ba5sba_mieszacz1.jpg?direct&400|}}

Probably it is sth from UPC family.

SMD SOT-26, SOT-363 LABEL "C5F":

Matching:
  * BGA2022 - MMIC Mixer - nie pasuje
  * MAX2671EUT - nie pasuje

  * NE612/SA612 - Double-balanced mixer and oscillator - 8pin nie pasuje

  * UPC3215TB-E3 (C3H) - wzmacniacz
  * UPC8103T - nie pasuje
  * UPC8105GR- modulator Q
  * UPC8106TB - (C2D) ma pin PS, nie pasuje
  * UPC8108 - (C2C) to samo co 8103
  * UPC8109
  * UPS8112TB (C2K) 
  * UPC814 - wzmacniacz
  * UPC815 - wzmacniacz
  * UPC816 - wzmacniacz
  * UPC8163TB-A (C2Y) - nie pasuje
  * UPC8167TB - PS pin nie pasuje
  * UPC8172TB-E3-A (C3A) - PS nie pasuje
  * UPC8178TB (C3B) - 
  * UPC8187TB (C3G)
  * UPC2757(8)TB  (C1X, C1Y)