Sharp Corporation will introduce into the Japanese market a new receiver tuner module for One-Seg digital terrestrial broadcasts capable of receiving two One-Seg programs simultaneously. Mass production of the model VA3A5JZ923 will begin on March 30, 2009.
In Japan, the percentage of mobile handset shipments with the capability to receive One-Seg programs exceeded 85% in December 2008*1. Now, manufacturers are seeking new added-value receiver functions in their efforts to differentiate their handsets in a competitive market environment.
The VA3A5JZ923 combines two tuner ICs with two OFDM demodulation ICs*2 to allow two One-Seg broadcast programs to be received simultaneously, enabling such features as dual-screen display, or background recording of another program on a different channel.
In addition, the VA3A5JZ923 supports diversity techniques to improve reception performance. In diversity mode, when receiving only a single broadcast channel, the signals received from the two tuners are combined to provide the optimal (most stable) video reception in the mobile environment. This enables a higher reception sensitivity of
–112 dBm (a 3 dB improvement over its predecessor*3). Plus, Sharp’s proprietary high-density surface mount technology makes possible a compact package design measuring only 9.0 × 9.0 × 1.25 mm.
| Product name |
One-Seg receiver tuner module |
| Model name |
VA3A5JZ923 |
| Sample price (tax included) |
20,000 yen |
| Mass production date |
March 30, 2009 |
| Monthly production |
500,000 units |
Major Features
| 1. |
 |
Enables two One-Seg broadcast programs to be received simultaneously. |
| 2. |
|
Compatible with diversity systems for high-sensitivity, stable reception (when receiving only a single channel). |
| 3. |
|
Compact package design (9.0 × 9.0 × 1.25 mm). |
| *1 |
Data source: JEITA (Japan Electronics and Information Technology Industries Association) |
| *2 |
OFDM (Orthogonal Frequency Division Multiplexing) is a digital modulation scheme adopted for use in terrestrial digital broadcasting. |
| *3 |
Sharp’s previous product: VA3A5JZ922. |
Specifications
| Model name |
VA3A5JZ923 |
| Target area |
Japan |
| Output format |
Transport stream (TS) |
| Receiving frequency band |
470 to 770 MHz (UHF channels 13 to 62) |
| OFDM modulation |
Built-in |
| Input sensitivity |
–112 dBm (receiving in diversity mode) |
| Control interface |
I2C Bus* |
| Supply voltage |
1.2 V (OFDM core), 1.8 V (RF), 1.8 to 3.1 V (I/O) |
| Power consumption |
82 mW (receiving only a single channel)
160 mW (receiving two discrete channels)
155 mW (receiving in 2-channel diversity mode) |
| Outside dimensions |
9.0 x 9.0 x 1.25 mm |
| * |
I2C Bus is a trademark of Philips Semiconductors Corporation. |
| The above information is true and accurate at the time of publication. Manufacture, sale, price and specifications of products may be subject to change. |
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