セイコーＮＰＣ List of Products and Services

The SME-08ASx is a reflective optical incremental encoder IC with 3-channel digital output. It has a built-in multiplier circuit (1x, 2x, 4x) that allows for resolution settings.

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The SME-08BDx is a reflective optical incremental encoder IC with 3-channel analog/digital output. The A/B phases can be selected from analog output or digital output depending on the version. Additionally, the digital output version includes a multiplication circuit (4x, 8x, 16x) and allows for resolution settings.

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The SM3414B is a reflective absolute linear optical encoder IC that integrates light emission, light reception, and signal processing into a single package. It optically reads the absolute code patterned on the scale and outputs it via a serial interface. It is also capable of outputting an analog incremental signal. It has built-in various adjustment circuits via the serial interface, allowing for the adjustment of the threshold voltage for binarizing the absolute code and the gain for the I/V conversion of the incremental signal.

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The SMD-04B is a high-precision optical encoder IC that utilizes a diffraction image projection method. The SMD-04B integrates an OEIC (Opto-Electric Integrated Circuit) and an LED in a single package. It projects light emitted from the LED onto a scale and detects the relative movement between the SMD-04B and the scale by receiving the diffracted image of the reflected light with a photodiode. Additionally, by providing a pattern for origin detection on the scale, it outputs the Z phase, which is the origin signal. Furthermore, by arranging the photodiodes in an array at the receiving section, it minimizes the degradation of phase characteristics due to mounting accuracy.

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The SMD-01B is a reflective incremental encoder IC that utilizes a diffraction image projection method. This product integrates a photodiode and an LED in a single package. It detects the relative movement between the SMD-01B and the scale by projecting light emitted from the LED onto the scale and receiving the diffracted image of the reflected light with the photodiode. Additionally, by arranging the photodiodes in an array, it minimizes the degradation of phase characteristics due to mounting accuracy.

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The SMH-01B11 is a thermopile-type infrared array sensor module that can detect infrared energy in an 8×8 pixel area and convert it into radiative temperature output. It is equipped with a Si lens optical system, and through a built-in MCU with an A/D converter, it provides digital output of the converted radiative temperature for each pixel and the environmental temperature measured by the temperature sensor mounted on the sensor chip via an I2C interface. Additionally, it has a built-in variable gain preamplifier with magnification adjustable from 20 to 200 times, allowing for measurement across a wide temperature range with automatic range switching controlled by software. Compared to conventional sensors, it features high output sensitivity and a wide detection temperature range, and it is expected to be applied in home appliances, industrial equipment (air conditioning, medical, automotive), and healthcare solutions such as monitoring, medical care, and nursing.

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The 7202 series is a CMOS IC for crystal oscillator modules that incorporates an oscillation circuit for AT-cut quartz crystal oscillators at 16.777216MHz (or 25.165824MHz, 33.554432MHz) and outputs 32.768kHz with a division ratio of 512 (or 768, 1024). It is designed to operate at 125°C. By using an AT-cut crystal, it enables the realization of a 32.768kHz output crystal oscillator with superior frequency temperature characteristics and a shorter oscillation startup time compared to products using tuning fork oscillators. Compared to the conventional model (5059), it reduces power consumption by 90%, shrinks the chip size by 40%, and supports a wide operating supply voltage range (1.6 to 3.63V) and an operating temperature range (-40 to 125°C).

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This series is a CMOS IC for crystal oscillator modules equipped with oscillation frequency adjustment and frequency division functions. By driving the oscillation circuit with a constant voltage circuit, it achieves low power consumption and low frequency voltage deviation. Despite its rich features, it can be implemented in a compact 1612 size package.

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