Nippon Wireless has introduced a built-in output switch, 8-input 4-output stereo audio selector NJW1112, which is ideal for AV/DVD receivers, audio routers, and other AV devices with multiple external input terminals. .
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[development background]
With the versatility of AV/DVD receivers and the like in recent years, the number of external inputs has also increased. AV/DVD receivers with high-quality audio characteristics are in demand in the market, and the demand for audio selectors capable of responding to multiple inputs/multiple outputs is constantly expanding. In order to support external input signals of more than ten systems, a plurality of audio selectors are connected in series, but this connection method may cause deterioration of sound quality. To solve this problem, Nippon Wireless has developed a high-quality stereo audio selector NJW1112 that can support multiple inputs while connecting audio selectors in parallel.
ã€product Overview】
The NJW1112 is an audio selector consisting of an 8-input 4-output stereo switch, a buffer amplifier, and an output switch.
It is most suitable for AV receivers, DVD receivers, audio routers, video conferencing systems, security systems, etc. with multiple input terminals and with audio signal switching. In addition, by optimizing the audio characteristics, the high-quality sound of the device is achieved.
Feature 1 realizes that the sound quality deterioration is small and the ON/OFF switch is built in the connection signal output unit. Therefore, the NJW1112 can be connected in succession, suppressing deterioration of audio characteristics, and contributing to high sound quality of the device. 
(refer to the right)
Feature 2 Excellent audio characteristics, contributing to the high sound quality of the device New Japan Wireless has achieved low distortion (THD=0.0007%) and low noise (VNO=-119dBV) through years of accumulated analog circuit technology. Excellent crosstalk characteristics (lower crosstalk (CT = -120dB typ.) and high channel separation (CS = -116dB).
Feature 3 The low ON impedance of 15Ωtyp. contributes to the high sound quality of the device. The low ON impedance of 15Ωtyp. achieves low distortion of the audio signal.
ã€application】
・ AV receiver, DVD receiver, audio router, video conferencing system, security system
[product performance]
â—Working power supply voltage ±4.5～7.5V
â— 8-input 4-output stereo audio selector â— current consumption 14mA typ.
◠Built-in low ON impedance output switch ON impedance 15Ω typ.
â—Low distortion 0.0007%
â—Low noise -119dBV
â—Low crosstalk 120dB typ.
â—Channel separation 116dB typ.
◠3-wire serial control ◠Bi-CMOS process ◠Package SSOP32 (11.0 × 7.6 × 1.25mm typ.)
[production plan / sample price]
・Sample supply has started in July 2009.
・Production has started, with a monthly output of 100,000.
・Sample price @¥300
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