RF and Wireless

MICRF221AYQS

Active

850MHZ TO 950MHZ, 3.0V TO 3.6V, 9MA, 10KBPS ASK RECDEIVER WITH AUTO-POLL AND RSS 16 QSOP 3.90MM(.150IN) TUBE ROHS COMPLIANT: YES

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RF and Wireless

MICRF221AYQS

Active

Microchip Technology

850MHZ TO 950MHZ, 3.0V TO 3.6V, 9MA, 10KBPS ASK RECDEIVER WITH AUTO-POLL AND RSS 16 QSOP 3.90MM(.150IN) TUBE ROHS COMPLIANT: YES

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MICRF221AYQS

Antenna Connector	PCB, Surface Mount
Current - Receiving	9.3 mA
Data Interface	Surface Mount, PCB
Data Rate (Max) [Max]	10 kbps
Frequency [Max]	950 MHz
Frequency [Min]	850 MHz
Modulation or Protocol	ASK, OOK
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	0.154 in
Package / Case	16-SSOP
Package / Case	3.9 mm
Sensitivity	-109 dBm
Supplier Device Package	16-QSOP
Voltage - Supply [Max]	3.6 V
Voltage - Supply [Min]	3 V

MICRF221 Series

Part	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Frequency [Min]	Frequency [Max]	Current - Receiving	Modulation or Protocol	Antenna Connector	Voltage - Supply [Max]	Voltage - Supply [Min]	Data Interface	Mounting Type	Sensitivity	Data Rate (Max) [Max]	Package / Case	Package / Case	Package / Case
Microchip Technology MICRF221AYQS	16-QSOP	85 °C	-40 °C	850 MHz	950 MHz	9.3 mA	ASK OOK	PCB Surface Mount	3.6 V	3 V	PCB Surface Mount	Surface Mount	-109 dBm	10 kbps	0.154 in	16-SSOP	3.9 mm

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 3.07
Microchip Direct	TUBE	1	$ 3.07
		25	$ 2.81
		100	$ 2.54
		1000	$ 2.34
		5000	$ 2.23

Description

General part information

MICRF221 Series

The MICRF221 is a third generation QwikRadio® receiver, offering all the benefits of Micrel's earlier QwikRadio products with significant improvements, including: enhanced sensitivity, automatic duty-cycle feature and RSSI output.

The MICRF221 is a super-heterodyne receiver, designed for OOK and ASK modulation. The down-conversion mixer also provides image rejection.

The MICRF221 receiver provides a SLEEP Mode for duty-cycle operation and an enhanced, customer programmable "WAKE" function. These features are further combined into a wholly integrated "self-polling" scheme that is ideal for low and ultra-low power applications, such as RKE and RFID