FM RDS/RBDS + AM tuner module

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High quality integrated tuner module for worldwide FM, RDS/RBDS and AM reception.


Here are the technical specifications:

  • High quality NXP TEF6901AH chip used for best performance.
  • Receives FM, LW, MW, and SW bands.
  • Fully integrated stereo decoder.
  • FM weak signal processing.
  • Integrated RDS/RBDS radio data demodulator.
  • Sequential state machine supporting each tuning action.
  • On-board +8V5 voltage regulator.
  • Flexible audio input source selection.
  • Volume, balance, fader and input gain control.
  • Main tuner source code (CCS C) available.
  • All parts available at our shop.
  • PCB size = 61,4 x 57,3 mm

Pcb layout, schematics (Eagle) and source code available. 

Last update: June 3, 2009.


Module: Schematic (click to view full resolution image)

 

Module: Main Connections:


PCB diagram (click to view full resolution image)

Header pinouts and connections

 

JP1 Line inputs
1 GND
2 INAL
3 INAR
4 INAC
5 INBL
6 INBR
7 INC
8 IND
 
JP2 Line outputs
1 GND
2 LF: Left Front audio out
3 RF: Right Front "  "
4 LR: Left Rear "  "
5 RR: Right Rear "  "
 
JP3 IC interface
1 SCL
2 SDA
 
JP4 RDS data output
1 RDCL
2 RDDA
 
JP5 LEVEL meter
1 LEVEL out
2 GND
 
JP6 MPX output
1 GND
2 MPX signal out
 
JP7 Power supply input
1 GND
2 +9...12VDC input, 100mA
 
JP8 Controller, P +3..5VDC pull-up input voltage.
 

Module software, ic interface commands:

 

 


Downloads: right-click & save as

 
  WARNING: may not be duplicated for any commercial use whatsoever without explicit consent from the author (c) Michel Bavin, TechDesign Electronics.
 

 

 Eagle PCB layout: 041_v017.brd  - October 30, 2007.

 Eagle Schematics: 041_v017.sch  - October 30, 2007.

 Eagle Parts Library: 041_v017.lbr  - October 30, 2007.

 Schematics GIF-image: 041_v017_sch_full.gif  - October 30, 2007.

 Part List (bill of Materials: 041_v017_bom.htm  - October 30, 2007.

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Info & datasheet:

 
NXP TEF6901AH/v2557 tuner chip
 
 
 

Screenshots:

 

Module overview (real size= 61 x 57 mm or 2"38 x 2"23)

PCB diagram, with ground polygons

bare PCB, epoxy prototype.


Tools:

Check out our development tools page.


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