Nippon Wireless Co., Ltd. (Headquarters: Central District, Tokyo, Japan) has developed a single-channel power amplifier NJU7089 that can operate at low voltage and has a 1.2W output. This product is a power amplifier for sound output that is most suitable for battery-operated devices such as fire alarms.
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Fire alarms, digital voice recorders, etc. are generally battery-driven. In order to allow the ICs mounted on these devices to maximize the performance of the battery and to operate continuously for a long time, low-voltage driving is highly desirable.
In addition, in order to reduce noise, digital recorders and the like use a differential output form in the DAC output section.
In order to meet the market demand, Nippon Wireless has developed a mono power amplifier NJU7089 that can operate at low voltage and can respond to DAC differential output with 1.2W output.
ã€Features】
Feature 1 The minimum operating voltage is 1.8V, which is most suitable for battery-operated devices. Compared with our previous products, it has improved the manufacturing process/circuit so that it can work with a 1.8V low-voltage 1.8Vx2 battery's 1.8V low voltage. Therefore, the battery performance can be maximized.
Feature 2 1.2W output ensures that the sound pressure level output power is increased by about 20% compared with other companies' equivalent products. The 1.2W output ensures sufficient sound pressure level even for fire alarms.
Feature 3 Small package can reduce the mounting area
The NJU7089 is ideal for devices that require high-precision mounting, such as digital recorders. The ESON8-V1 (2.3 x 2.3 x 0.397mm) is available in a small, low-profile package.
Compared with other companies' equivalent products, the installed area is reduced by about 40%.
[Product Performance / Specifications]
・Working voltage: V+=+1.8V to +5.5 V
・Can correspond to differential input and output power: Po=1.2W typ. (@V+=5V, RL=8Ω, THD=1%)
・Standby function and current consumption: IDD1=2.5mA typ. (@V+=5V, RL=open, when there is no signal)
:IDD1=2μA max. (@V+=5V, RL=open, during standby)
・Package: VSP8 (2.9 x 4.0 x 1.2mm)
:SSOP20-C3 (6.5 x 6.4 x 1.25mm)
:ESON8-V1 (2.3 x 2.3 x 0.397mm)
ã€application】
Fire alarm / digital voice recorder / walkie-talkie, etc.
[production plan / reference price]
・Sample supply/production The monthly output was 100,000 units in July 2011.
・Sample price is 80 yen.
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