TwinHan

Twinhan Technology Co. Ltd ('TwinHan) is a Taiwanese manufacturer that has produced a plethora of PCI and USB based DVB devices.

TwinHan's foray into Linux originated with closed source bttv drivers (based on the BSD License) for Redhat 9.0. Unfortunately, there was a heavy cross exchange of fire between the bttv authors and the company, and TwinHan subsequently removed Linux as a supported OS from the list of supported platforms.

Since June 2007 Twinhan is delivering linux drivers again for a list of their devices. The supplied drivers are binaries compiled for the i586 platform and activate the CI part on the card which have them. In the archives most of the sources are supplied, probably due to GPL, except the part for the CI-module, probably closed source. So recompiling will not work.

Cards

DVB-T

• Twinhan VisionDTV USB Terrestrical
• Twinhan VisionPlus VisionDTV USB-Ter DVB-T - based on the DiBcom reference design for usb devices using a DiBcom 3000-MB demod.
• TwinhanDTV Digital Terrestrial TV Card Ter

TwinHan DVB-T

("DTTDIG") (dst)

 features: fullts
 card driver: dvb-bt8xx
 interface: PCI
 PCI device id: 14f1:8804
 PCI subsystem id: 1822:0001
 Bridge: bt8xx
 frontend 1:
   frontend driver: dst
 Notes: The frontends on these cards are hidden behind an ASIC - no need to know the full details.
        The actual card type is determined by interrogating the onboard EEPROM.

TwinHan V3021

(nxt6000/ALPS TDED4-504A(TI ALP50))

 features: fullts, AVin
 card driver: dvb-bt8xx
 interface: PCI
 PCI device id: 109e:0878
 PCI subsystem id: 0071:0101
 Bridge: bt8xx
 frontend 1
   tin box: ALPS TDED4-504A
   frontend driver: nxt6000
   demodulator location: tin box
   demodulator: NxtWave Communications NXT6000 @0x0A
   PLL: TI ALP50 @0x60
 Notes: This board design is used by numerous OEMs. Other names it may be known as include: Nebula DigiTV

DVB-C

• Twinhan VisionDTV Mini Cab DVB-C PCI
• TwinhanDTV Cab-CI

TwinHan ???? ("DCTNEW")

(dst)

 features: fullts
 card driver: dvb-bt8xx
 interface: PCI
 PCI device id: 14f1:8804
 PCI subsystem id: 1822:0001
 Bridge: bt8xx
 frontend 1:
   frontend driver: dst
 Notes: The frontends on these cards are hidden behind an ASIC - no need to know the full details.
        The actual card type is determined by interrogating the onboard EEPROM.

TwinHan ("DCT-CI")

(dst)

 features: fullts
 card driver: dvb-bt8xx
 interface: PCI
 PCI device id: 14f1:8804
 PCI subsystem id: 1822:0001
 Bridge: bt8xx
 frontend 1:
   driver: dst
 Notes: The frontends on these cards are hidden behind an ASIC - no need to know the full details.
        The actual card type is determined by interrogating the onboard EEPROM.

DVB-S

All the Twinhan DVB-S cards use a LG tuner. If you have a good signal, this tuner is perfectly alright, but in cases of low signals the tuner freaks out..

The tuner has a high phase noise ... ?

Bottom View - The Zarlink SL1925E & the infamous STV0299B

Top View - The chip is the Philips TSA5059T

DVB-S Devices sold by Twinhan

Device	Trade Name (on box)	Description	Firmware / dst_get_device_id
Twinhan VP-1020 PCTV Sat		DVB-S Budget PCI card
Twinhan VP-1020A PCTV Sat		DVB-S Budget PCI card
Twinhan VP-1022	DTV Mini-Sat	DVB-S Budget PCI card	DST-03T
Twinhan VP-1025 PCTV Sat	DTV Sat-Express	DVB-S Budget PCI card	DST-03T
Twinhan VP-1030		DVB-S Budget PCI card	?
Twinhan VP-1030A PCTV Sat CI		DVB-S Budget PCI card	DSTMCI
Twinhan VP-1030C PCTV Sat CI		DVB-S Budget PCI card

Firmware id is returned by the card's firmware. You can find this id in the traces. (/var/log/messages) For instance:

Apr 12 08:31:58 localhost kernel: dst_get_device_id: Recognise [DST-CI]

Twinhan clone DVB-S Devices

Brand	Device	Description	Firmware
Digital Rise	DTV PCI Sat CI [1]	Clone of VP-1032
Hercules	Smart TV Satellite	Clone of VP-1030	DST-CI
Pinnacle	PCTV Sat CI	same as Smart TV Satellite?
TechniSat	SkyStar1 CI < v3.0	Clone of VP-1032 (VP-1030C)	DST-CI
TechniSat	SkyStar1 CI v3.0	Clone of VP-1030A	DSTMCI

Twinhan card are also sold as OEM by Hama ,VVMER, Tomato...

External Links

• TwinHan Technology Co. Ltd. (Taiwan)