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    toniebox-pcb.code-workspace
    		 
    README.md
    Toniebox PCB
    


    Repository which will lead to a complete schematic of a Toniebox PCB. The schematic is done with KiCad.
    


    View this project on CADLAB.io.
    


    Source of CC3200 footprint: ]]>https://raw.githubusercontent.com/Turegano/CC3200/master/lib/CC3200.lib]]>
    


    Table Of Contents
    




    Folders
    




    Status
    


    Top
    


    Bottom
    


      

    • red dot: fully documented
      • 

    • blue dot: partially documented
      • 

    


    Remaining Work
    


      

    • create subsheets for logical blocks
      • 

    • create pinout of ASICs
      • 

    • document remaining testpoints
      


      T1: NSS40200LTG
      • 

    


    Block Diagrams
    


    Block diagram with testpoints 
    


    BQ24400 (charge IC) with testpoints
    


    Testpoints
    


    


    
  TP
  Connected to
  Comment

    
    


    
  TP1
  U1 MCLK
  external master clock

    

    
  TP2
  U1 GPIO1/ U2 pin 55 GPIO1
  

    

    
  TP3
  K2 pin 9
  SD detect

    

    
  TP4
  U2 pin 29
  ANT SEL1 Antenna Selection Control

    

    
  TP5
  U2 pin 30
  ANT SEL2 Antenna Selection Control

    

    
  TP6
  BQ24400 GND/Battery GND
  Battery GND is connected with PCB GND via R55 (0R05)

    

    
  TP7
  U2 pin 11/U3 pin 6/R27(?)
  SCK

    

    
  TP8
  U2 pin 12/U3 pin 5/R26(?)
  SI

    

    
  TP9
  U2 pin 13/U3 pin 2/R25(?)
  SO

    

    
  TP10
  U2 pin 14/U3 pin 8/R28(?)
  VCC

    

    
  TP11
  U7 pin 3 (~LED)
  Charge status LED, connected to U6 output via 100k pull up and U2 pin 20 via 1k2

    

    
  TP12
  U5 ASK/OOK
  can be configured as an output to provide the received analog signal output

    

    
  TP14
  audio jack
  

    

    
  TP15
  audio jack
  

    

    
  TP16
  U1 VOL/MICDETECT
  

    

    
  TP17
  K9 pin 3/U1
  speaker+

    

    
  TP18
  K9 pin 2/U1
  speaker-

    

    
  TP19
  U1 pin 31/D12/U2 pin 62 GPIO7/U5 EN
  DAC reset

    

    
  TP20
  U5 VDD_X
  

    

    
  TP21
  U5 VDD
  

    

    
  TP22
  U5 BG
  

    

    
  TP23
  U5 VIN
  Voltage of U320, if faulty check TP321

    

    
  TP24
  U5 VDD_A
  

    

    
  TP25
  U4 pin 3
  Accelerometer DNC

    

    
  TP26
  K4 pin 1/U2 pin 57/R60 (1k)(?)/R394 (1k2)(?)/
  ears, fed from regulator U6/TP52

    

    
  TP27
  D10 pin 1
  LED red -

    

    
  TP28
  D10 pin 2
  LED green -

    

    
  TP29
  D10 pin 3
  LED blue -

    

    
  TP30
  U5 IO 5
  

    

    
  TP31
  K4 pin 3/U2 pin 59/R64(1k)(?)
  ears, fed from regulator U6/TP52

    

    
  TP32
  
  

    

    
  TP33
  U5 MOD
  

    

    
  TP34
  U5 SYS
  

    

    
  TP35
  U5 EN
  When high NFC IC is enabled. If faulty check TP19. Fed by U8 via D13 (is connected to U2 GPIO7).

    

    
  TP36
  U5 EN2
  

    

    
  TP37
  NFC socket
  

    

    
  TP38
  K8 pin 3/T1/D12 (battery control circuit)/T340/T342
  bat+

    

    
  TP39
  U320 VIN, T320 collector voltage for U320 EN via R320; U6 VIN; U8 VIN
  feeds U320, U6, U8 with VCC; enables U320 via T320

    

    
  TP41
  Circuit next to U10
  0V w/o battery, ~ bat. Voltage w/ battery; output of T344; connected to U10; controls  T343, T342, T340

    

    
  TP42
  BQ24400 BAT input
  

    

    
  TP43
  U10 /
  battery voltage after R89; w/ battery: voltage < bat voltage; w/ power supply 3.8 – 4.4V; check TP38 if not ok

    

    
  TP45
  K8 pin 1/U7 pin 5 (TS)
  temp sense; connected via R47 with BQ24400 and battery NTC.

    

    
  TP46
  BQ24400 TIMER PROGRAM
  

    

    
  TP47
  U2 pin 8/output L300 via 1:1 voltage divider R75/R72
  Supervising U300+circuitry; measured between D301 and L300; 50% voltage via divider R75/R72 to U2 pin 8

    

    
  TP48
  U2 pin 61/U8 ENABLE via R56 (10k pulldown)
  U2 enables LDO U8 with GPIO6. If U8 is not working (TP50) check U8 at TP39

    

    
  TP49
  U2 pin 60
  

    

    
  TP50
  U8 VOUT/U9 VIN/U1 IOVDD/U1 HPVDD/SPKVDD/AVDD
  3V3 output of LDO U8, 1V8 input of LDO U9, T11, U4. 3V3 input U1; if not ok check TP48.

    

    
  TP51
  U9 VOUT/U1 DVDP
  1V8 output of LDO U9. Feeds  U1 at PIN 3; if not ok check ENABLE at TP50 and input voltage at TP39.

    

    
  TP52
  U6 VOUT 3V3/ U2 VIN IO1, VIN IO2, VIN DCDC ANA, VIN DCDC PA, VIN DCDC DIG, VD2 ANA2/ VCC for U3,T7, T360, T320, SV BQ24400 LED/ RGB LED
  3V3 output LDO U6: feeds U2, U3, T360 (TP360), TP320, LED output of BQ24400 (TP11)

    

    
  TP53
  audio jack
  

    

    
  TP54
  VCC
  Power supply voltage; if power supply is ok check L8 (SMT Common Mode Line Filter 2x500mH)  and D4 (15V TVS Diode)

    

    
  TP55
  GND power jack
  

    

    
  TP65
  audio jack
  

    

    
  TP66
  U2 pin 43/pin 9/pin 56
  U2 internal voltage

    

    
  TP67
  U2 pin 38/pin 36/pin 48/pin 25
  U2 internal voltage

    

    
  TP68
  U2 pin 48
  U2 internal voltage

    

    
  TP69
  U2 pin 24
  U2 internal voltage

    

    
  TP70
  T9
  middle pin (SMD 13014)

    

    
  TP71
  U5 VSS PA/VSS RF/VSS/VSS D/NFC connector outer contacts
  

    

    
  TP72
  U1 AIN1
  

    

    
  TP73
  U1 AIN2
  

    

    
  TP74
  U5 IRQ
  

    

    
  TP75
  U300 VIN
  comes from R305 (0R). U300 generates voltage when operating with power supply; if not ok check TP301

    

    
  TP300
  U300 ISENS/T347 via R344
  U300 output voltage; main supply when connected to power supply; input voltage of voltage divider R344/R345 for U10.

    

    
  TP301
  D6
  Main voltage after D6;if not ok check TP54

    

    
  TP320
  U320 ENABLE/T320
  ENABLE U320 from T320; T320 is supplied via R320 (470k) from D301 (TP39); T320 is controlled by U2 pin 58; if not ok check TP361 and supply voltage of TP39

    

    
  TP321
  U320 output/U5 input
  U320 supplies U5; if not ok check TP320 and TP39 for supply voltage; if supply voltage check TP322

    

    
  TP322
  U320 feedback
  Voltage for regulating output voltage of U320; output voltage of divider R321 (470k)/R322 (180k); should be 1.31V-1.51V; divider is fed by U320 output; if not ok check output TP321, input TP39, ENABLE TP320

    

    
  TP341
  U10 circuitry
  ;output of T347; controls T346, T345, T341;  LOW when operating with power supply; ~ bat voltage when operating with battery; check TP342 and TP38

    

    
  TP342
  U10 circuitry/voltage divider R344/R345
  Voltage divider R344/R345; fed from output of U300; triggers T344, T347 getriggert; operating with power supply: 1V; battery mode: 0V;check  TP300

    

    
  TP350
  U2 pin 3
  I2C_SCL

    

    
  TP351
  U2 pin 4
  I2C_SDA

    

    
  TP355
  config(?) R connected to GND
  

    

    
  TP356
  config(?) R connected to GND
  

    

    
  TP357
  config(?) R connected to GND
  

    

    
  TP358
  config(?) R connected to GND
  

    

    
  TP360
  K2 pin4
  SD VDD;T360 switches  3V3 of U6; T360 is controlled by  U2 GPIO3 PIN58;  check TP361

    

    
  TP361
  T320/T360 (voltage)
  T320 switches ENABLE of U320 / T360 controls voltage SD card

    

    
  TP370
  U2 pin 34 SOP1
  

    

    
  TP371
  U2 pin 35 SOP0
  

    

    
  TP372
  U2 pin 17 TDO
  

    

    
  TP373
  U2 pin 18
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