ST25RU3993 Datasheet, PDF (1/90 Pages) STMicroelectronics – Integrated supply regulators

ST25RU3993
UHF RFID single chip reader EPC Class1 Gen2 compatible
QFN48
Features
• Supply voltage range 3.0 to 3.6 V
– Limited operation possible down to 2.7 V
– Maximum PA supply voltage 4.3 V
– Peripheral I/O supply range 1.65 to 5.5 V
• Protocol support for:
– ISO 18000-6C (EPC Class1 Gen2)
– ISO 29143 (Air interface for mobile RFID)
– ISO 18000-6A/B through direct mode
• DRM: 250 kHz and 320 kHz filters for M4 and
M8
• Integrated supply regulators
• Frequency hopping support
• ASK or PR-ASK modulation
• Automatic I/Q selection
• Phase bit for tag tracking with 8-bit linear RSSI
• Temperature range: -40 °C to 85 °C
• 48-pin QFN (7x7x0.9 mm) package
Datasheet - production data
Description
The ST25RU3993 is an EPC Class 1 Gen 2 RFID
reader IC that implements all the relevant
protocols, including ISO 18000-6C, the ISO
29143 air-interface protocol for mobile RFID
interrogators, and ISO 18000-6A/B for operation
in direct mode. It includes an on-chip VCO and a
power amplifier, and offers a complete set of
RFID features including Dense Reader Mode
(DRM) functionality and support for frequency-
hopping, low-level transmission coding, low-level
decode, data framing and CRC checking.
The ST25RU3993 operates at very low-power,
making it suitable for use in portable and battery-
powered equipment such as mobile phones.
Packaged in a 7x7 mm QFN, the ST25RU3993 is
able to deliver very high sensitivity and provides
high immunity against the effects of antenna
reflection and self-jamming. This is critical in
mobile and embedded applications, in which
antenna design is often compromised by cost or
size constraints. High sensitivity enables the end-
products to achieve their required read range
while using a simpler and cheaper antenna, thus
reducing overall system cost.
Thanks to its high level of integration, the
ST25RU3993 requires only an external 8-bit
microcontroller to create a complete RFID reader
system, thus eliminating the need for a complex
RFID co-processor.
March 2017
This is information on a product in full production.
DocID029764 Rev 5
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