OpenBox
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OpenBox is an Open Source receiver STB from a German company by the same name. The Frontend is on a separate card that plugs into the mainboard and there are at least two different cards available:
DVB-C
- 2x NXP 8274AC1 Tuners
- 2x NXP TDA10023HT Demodulators
DVB-S2
1200 series
- J1: FPGA_JTAG (nofit)
- J2: MicroSD
- J3: JTAG for U3 (nofit)
- J4: Interface to SOM J4
- J5: HDMI Out
- J6: Interface to SOM J6
- J7: USB-B (nofit)
- J8: USB-A #1
- J9: USB-A #2
- J10: USB-A #3
- J11: Internal USB (USB-A #4)
- J12: SCART
- J13: LVDS out
- J14: 12v Power
- J15: MicroSD
- J16: Loudspeaker
- J17: SVIDEO (nofit)
- J18: Keypad
- J19: Inverter
- J20: CIR & LED
- J21: UART for U3
- J22: 5v Power (nofit)
- JP1: Interface to SOM
- JP2: Expansion (20 pin)
- JP3: Audio out (nofit)
- JP4: Audio in (nofit)
- JP5: Tuner
- JP6: Expansion (20 pin)
- JP7: Jumper - voltage select for tuner (nofit)
- U1: FPGA
- U2: Bus transceiver (74LVC245)
- U3: ARM Cortex-M3 Microcontroller (LM3S6965-IQC)
- U4: Ethernet connector (active)
- U5: LDO (nofit)
- U6: Sil9022/9024ARBT HDMI Transmitter
- U7: Current limiter, HDMI (FPF2116)
- U8: Current limiter, USB (TPS2044BD)
- U9: 4-port USB hub (USB2504A-JT)
- U10: 1W Mono amp (TDA7052A)
- U11: 1W Mono amp (TDA7052A)
- U12: 8-40v input to 5v output voltage regulator
- U13: 5v input to 2.5v output regulator (TPS73025DBVT)
- U14: 5v input to 3.3v outpt regulator (TLV1117-33CDCY)
- U15: 5v input to 1.8v output regulator (TLV1117-33CDCY)
- U16: Quad Op-Amp (LM324APWR)
- U17: LDO (nofit)
- U18: On-board IR receiver (nofit)