Seiko Epson Corporation press release (2024.09.26) Seiko Epson Corporation Epson begins mass production of its first RF transmitter IC “S1S77100” Supports specific frequencies in the UHF band, compact size with small package and low power
consumption performance Ideal for radio transmitters Seiko Epson Corporation (hereinafter referred to as Epson) has begun mass production of Epson’s first RF (Radio Frequency) transmitter IC for wireless transmitters, the S1S77100.
https://prcdn.freetls.fastly.net/release_image/42912/235/42912-235-76edaf41bb1101619a965f5348becfa0-192×194.jpg
https://prcdn.freetls.fastly.net/release_image/42912/235/42912-235-6d34108baa3a731b44d3311c672d7285-192×194.jpg (Back side) Currently, home security devices, smart meters, restaurant call bells, etc. are equipped with wireless communication functions. Wireless communication devices must comply with wireless standards for frequency bands that correspond to communication distance and speed for each application, and the importance of selecting RF transmitter ICs that meet standard requirements is increasing. Furthermore, with the increasing demand for improved design of wireless communication devices and longer battery life, there is also a growing need for smaller RF transmitter ICs and lower current consumption. Epson has therefore developed the S1S77100, an RF transmitter IC that supports specific frequencies in the UHF (Ultra High Frequency) band, for wireless communication transmitters. The S1S77100 can select frequencies from 300 to 465MHz or 600 to 930MHz by controlling the serial interface (SPI), and is compatible with specified low-power wireless standards*1. In addition, since the PLL*2 and Power Amp*3 are built into the 4 mm x 4 mm SQFN package, a wireless transmission function can be easily configured in combination with an external crystal oscillator. In addition, it has low current consumption performance of Typ. (Typical Value) 20nA in PowerDown mode*4, making it ideal for small wireless transmitters. These features contribute to reducing the customer’s circuit design and evaluation time. Epson will continue to contribute to further improving the performance of our customers’ products and making social infrastructure smarter with our “saving, compact, and precise technology” that realizes energy savings, miniaturization, and high precision. ■Main uses Wireless transmitters for home security devices, smart meters, restaurant call bells, golf cart remote controls, etc. ■Main features ・Frequency can be selected from 300 to 465MHz or 600 to 930MHz ・Small package: 4 mm x 4 mm SQFN package (P-VQFN024-0404-0.50) ・Low current consumption: Typ. 20nA in PowerDown mode (VDD = 3.0 V, Ta = 25 °C) [Related links] For detailed product information, please refer to the web page below. URL:
https://www.epson.jp/prod/semicon/products/rf_transmitter_ic/ [Customer inquiries] Seiko Epson Corporation MD Sales Department MD Sales Group URL:
https://www.epson.jp/prod/semicon/information/support.htm ■General specifications of this product Model number S1S77100 Output frequency range 300 to 465 MHz (0.25 kHz step) 600 to 930 MHz (0.49 kHz Step) output power -15 ~ 11 dBm, 128 steps programmable Modulation method ASK, OOK, FSK Equipped with Soft-ASK and Soft-FSK functions for transmitting band limit motion control Operation control via 3-wire or 4-wire SPI interface operating clock Operated by a clipped sine clock from a 32 MHz crystal oscillator Low voltage detection function Detection voltage is programmable in 4 steps from 1.8 to 2.4 V power supply voltage 1.8~3.6V package 24-pin 4mm x 4mm SQFN
(P-VQFN024-0404-0.50) operating temperature -40 ~ 85 °C *1: Compatible with specified low power wireless standards ARIB (General Incorporated Association) Standards (Communication field: Specific power-saving wireless) Standard number STD-T93/ STD-T67/ STD-30 Customers must apply for technical standard conformity certification. *2: PLL An abbreviation for Phase Locked Loop, which creates an arbitrary output frequency based on a clock signal of a specific frequency. *3: Power Amp A circuit that amplifies signals, and has the role of strengthening signals used in sound and wireless communications. Required for combination with crystal oscillator. *4: PowerDown mode In this product, only the minimum necessary circuits are operated, and current consumption is at its minimum. That’s all