TerraTec Cinergy T Stick Dual RC (rev. 2) teardownThat device is ITE Tech IT9135 reference design. It has two independent tuners, so called dual tuner model.
TerraTec has assigned USB ID 0ccd:0099 for that device. Unfortunately same USB ID is used for original revision 1 model too, which is build upon AF9015 chipset. AF9015 belongs to same chipset family, but it is two generation older and differs notably. Hey TerraTec guys, don't do that in future, it causes quite a lot headache!
Device is supported under Linux starting from the Kernel 3.10. Linux AF9035 driver supports IT9135/IT9137 too.
TerraTec Cinergy T Stick Dual RC (rev. 2)
|TerraTec Cinergy T Stick Dual RC (rev. 2)|
Key components:ITE Tech IT9137
ITE Tech IT9133
PCB top side
|PCB top side|
Black box with 3 pins, partially top of IT9137, is IR-receiver. It is connected to the IT9137, which handles IR decoding. There is also crystal clearly visible. Crystal markings are missing from the reason or the other, but it is most likely 12.000 MHz.
There is two versions of these (IT9130 series) chips available, version 1 and 2. Chips used on that device seems to be version 1. You could see letters AX (v1) or BX (v2) printed top of the chip.
PCB printings: RD168OC VER1.1.
AF9030 and IT9130 family relationsIT9130 family is successor of AF9030 family. Main difference between these families is integrated RF-tuner. IT9130 has integrated RF-tuner whilst external tuner is needed for AF9030. USB-interface and demodulator seems to be quite same between all these chips.
IT9137 is same as IT9135 but contains physical pins for connecting slave demodulator (for dual tuner configuration and/or diversity).
These chips are sold as following chip names and integrated combinations:
* AF9032 = demodulator ?
* AF9033 = demodulator
* AF9035 = USB-interface + demodulator
* IT9133 = demodulator + RF-tuner
* IT9135 = USB-interface + demodulator + RF-tuner
* IT9137 = IT9135 + MPEG TS input for connecting slave IT9133
PCB bottom side
|PCB bottom side|
PCB printings: 94-V0, 1213, LJ-M E300053