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The following page content corresponds to the products marketed in Japan.
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Overview
A Set Top Box (tuner box) receives and converts TV broadcast signals, such as terrestrial broadcasts (digital and analog), cable TV broadcast and satellite broadcasts, so it can be viewed on a conventional analog TV set. In particular, the usage of Set Top Boxes for receiving terrestrial digital broadcasts is expected to grow substantially as the 2011 deadline for terminating analog TV broadcasting approaches. Since the main motivation for purchasing a Set Top Box is the continuous usage of the existing analog TV, it is very important to reduce the overall components cost whilst retaining compatibility with various signal at a low power.
Renesas supplies EMMA3TS, an LSI specialized for low-end terrestrial digital tuners, particularly to meet these market demands. Renesas also supplies a variety of devices that respond to the requirements for low power consumption. In addition, Renesas has a lineup of low-power MCUs that enable reception of remote control signals when in the system standby state.
System Block Diagram
Tuner Block
Recommended Products
| Block | Semiconductor device | Recommended products | Features, etc. |
|---|---|---|---|
| Power supply | Power MOSFET | RJK6026DPP | 600 V tolerance |
| 2SK3114B, 2SK3115B, 2SK3299B | |||
| Photocoupler (Standard) | PS25xx Series PS27xx Series PS28xx Series | High isolation voltage (5 kV r.m.s.), 4p-DIP High isolation voltage (3.75 kV r.m.s.), 4p-SOP High isolation voltage (2.5 kV r.m.s.), 4p-SSOP | |
| Graphic | System LSI for STB | EMMA2TS Series | |
| USB | USB device controller | M66592 | Hi-Speed USB support, small package |
| UPD720101 | Hi-Speed Host Controller | ||
| MCU | CPU | 78K0/Kx2-C, 78K0R/Kx3-C, M16C/63, 64A, 65 | CEC *1 MCU |
| R8C, M16C Family | software CEC*1 M16C/65:hardware CEC *1 | ||
| Reset IC | RNA519xx Series | Variable detection voltage and delay time | |
| SRAM | R1LVxxxx Series | Low power consumption, wide guaranteed operating temperature range | |
| Attenuator | PIN diode | HVB190S | High dynamic range Attenuator |
| General use, surge absorption, cicruit protection, etc. | Zener diodes | HZM6.2ZMWA, other | 3 terminals (2 devices) High ESD tolerance optimal for use in surge absorption |
| NNCDxxDA Series | High ESD tolerance optimal for use in surge absorption | ||
| RDxxS Series | 2-terminal face-mount outline | ||
| RKZ6.8Z4MFAKT | 5 terminals (4 devices) low capacitance (4pF) Low capacitance (4 pF) optimal for use in surge absorption for USB ports | ||
| RKZxxKG/KJ Series | 2 terminals SMD High ESD tolerance optimal for use in surge absorption | ||
| Switching diodes | HSC/D119, HSB2836/8 | 2-3 terminals SMD | |
| RKH0145/0160KU Series | 2 terminals SMD High voltage tolerance optimal for use in surge absorption and high-voltage rectification | ||
| Schottky diodes | RKR, HRW Series | 2-3 terminals Small package, low capacitance, large current type | |
| Tuner | LNA | NESG240033, NESG220033, other | Low noise, Low distortion, High ESD protection |
| IF-AGC | μPC3221GV, μPC3234GV, other | Wide AGC dynamic range, High ESD protection | |
| Out of band tuner | μPC3234T7A, μPC3228T5S, other | Low power consumption, Wide dynamic range, Low distortion |
*1 CEC: Consumer Electronics Control
Related Application Notes/Sample Code
| Title | Document No. |
|---|---|
| Power MOS FET application note | REJ05G0001-0200 |
| R2A20112 application note * | - |
| R2A20115 application note * | - |
| R2A20117 application note * | - |
| R2A20118A application note * | - |
| R2A20132 application note * | - |
*：Please contact your sales representative or contact us directly.
Related Boards
| Name | Part No. |
|---|---|
| R2A20111 evaluation board * | - |
| R2A20112 evaluation board * | - |
| R2A20115 evaluation board * | - |
| R2A20117 evaluation board * | - |
| R2A20118A evaluation board * | - |
| R2A20132 evaluation board * | - |
*：Please contact your sales representative or contact us directly.
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