Hauppauge WinTV-NOVA-T USB: Difference between revisions
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Revision as of 02:35, 4 May 2009
A DVB-T USB 1.1 device designed by TechnoTrend and sold by Hauppauge.
It is supported under Linux.
Overview/Features
This device is a rebadge of the DVB-T member of TechnoTrend's TT-PCline USB family of devices, which were USB1.1 based and of the, so called, "budget" category.
It uses a Texas Instruments DSP that remultiplexes the stream into a TechnoTrend-proprietary USB packet format and sends it as Isochronous USB Stream over the bus.
Due to the limited bus bandwidth provided by USB 1.1, of approximately 12Mbps, only selected PIDs can be transferred over USB to the host system. Consequently, some high bandwidth transponders won't work, and HDTV reception is not possible.
Components Used
- Alps TDMB7s tuner Module
- featuring either a Conexant CX22700 or Philips TDA10046 (demodulator )
- a Texas Instruments DSP (USB bridge)
Identification
output of lsusb -v:
Hauppauge/TT Nova-USB-t budget
(tda10046/Philips td1316(tda6651tt) OR cx22700/ALPS TDMB7(??))
features: partialts
board markings: "USB_DVB v1.92"
card driver: ttusb-budget
interface: USB1.1
USB device id: 0b48:1005
frontend possibility 1:
tin box: Philips td1316
frontend driver: tda1004x
demodulator location: separate
demodulator: Philips tda10046 @0x08
PLL: Philips tda6651tt @ 0x60
frontend possibility 2:
tin box: ALPS TDMB7
frontend driver: cx22700
demodulator location: tin box
demodulator: cx22700 @0x43
PLL: ?? @ 0x61
Notes: Need to disable the MC44BC374 (i2c:0x65) for the Philips td1316.
SAW filter is controlled by the tda10046's GPIO lines.
This device has only one frontend - but there are two possibilities
Although the hardware is capable of delivering the entire transport stream, the bandwidth of the USB bus prevents it
Making it Work
Firmware
Requires a Firmware, dvb-fe-tda10046.fw, that needs to get peeled out of the Windows Driver.
Drivers
The following drivers are needed for these devices:
- cx22700.ko - tda1004x.ko - dvb-ttusb-budget.ko