Industrial Solutions
September 28, 2006

High-sensitive receiving the terrestrial digital TV broadcast with 4-diversity reception, first in the industry(*1)

Announcing the release of the in-vehicle terrestrial digital front-end unit with 4-diversity reception

Contributing to the compact size, improved performance as well as lower power consumption of devices

(778KB)
New Product
November 6, 2006, Osaka, Japan－Panasonic Electronic Devices Co., Ltd. has succeeded in commercializing the in-vehicle terrestrial digital front-end unit with 4-diversity reception (TTM8J type and ET-08DHR type), which features the compact size, the high-sensitive receiving, the low power consumption and is first in the industry.
Product name In-vehicle terrestrial digital front-end unit with 4-diversity reception
Type name (model number) TTM8J (Model number: ENA94D**C3F)
ET-08DHR (Model number: ENV84Q**D8F)
Sample price 50,000 yen/unit (in case of combination of TTM8J and ET-08DHR)
Production start
April 2007
Production capacity 30,000 units/month
(in case of combination of TTM8J and ET-08DHR)
In in-vehicle TVs and automotive navigation systems, front-end systems capable of receiving the terrestrial digital broadcast have come into wider use instead of receiving the conventional terrestrial analogue broadcast. Although 2-diversity reception is mainly used at present, 4-diversity reception has been increasingly required to have the higher-sensitive receiving. To meet the market demand, Panasonic Electronic Devices Co., Ltd. has developed the TTM8J type which is combined two tuner units and one diversity demodulation unit into one package (first in the industry), and the ET-08DHR type comprised of a dual tuner. The 4-diversity reception system (first in the industry) is easily achieved by combining these units. In case the 2-diversity type is requested, the more compact size and the higher-sensitive receiving is realized by the single use of the TTM8J type.
[Features]
  1. The compact size and low profile 4-diversity reception first in the industry(*1), contributing to downsizing devices
    4-diversity reception; Mounting area : 44 cm2(TTM8J and ET-08DHR)
    2-diversity reception; Mounting area : 26 cm2(TTM8J) 50 % reduction compared with our current models (*2)
  2. Improvement in receiving performance at high-speed driving and the wide dynamic range, contributing to broadening the receiving area
    4-diversity reception; Sensitivity at high-speed driving: 200 km/h (*3) (at ch28)
                                                                                   (TTM8J and ET-08DHR）
    2-diversity reception; Sensitivity at high-speed driving: 130 km/h (*3) (at ch28)
                  (TTM8J) 70 % improvement compared with our current models (*2)
  3. Lower power consumption, contributing to saving power of devices and low heat generation, contributing to improving reliability of devices
    4-diversity reception; power consumption: 2.8 W (TTM8J and ET-08DHR）
    2-divdesity reception; power consumption: 1.6 W (TTM8J)
                      Approx. 50 % reduction compared with our current models (*2)
(*1) Our investigation of the unit receiving the terrestrial digital broadcast (with built-in digital demodulation circuit) as of November 6, 2006
(*2) Our model (TTM6J) (the unit receiving the in vehicle 2-diversity terrestrial digital broadcast,)
(*3) TU-6 simulation value at laboratory

[Applications]

In-vehicle terrestrial digital tuners, automotive navigation systems, rear entertainment systems