MICRF219AAYQS View Datasheet(PDF) - Micrel

Part Name

Description

Manufacturer

MICRF219AAYQS

300MHz to 450MHz ASK/OOK Receiver with Auto-Poll, and RSSI

Micrel 

Micrel, Inc.

MICRF219A

Electrical Characteristics(4) (Continued)

VDD = 3.3V, VSHDN = 0V, SQ = open, CCAGC = 4.7µF, CCTH = 0.1µF, unless otherwise noted. Bold values indicate

–40°C ≤ TA ≤ 105°C. “Bit rate” refers to the encoded bit rate throughout this datasheet (see Note 4).

Parameter

Condition

Min.

Typ.

Max.

Demodulator

fREF = 9.81713MHz

165

CTH Source Impedance, Note 6

fREF = 13.52313MHz

120

CTH Leakage Current In CTH Hold TA = +25ºC

1

Mode

TA = +105ºC

10

Digital / Control Functions

DO Pin Output Current

As output source @ 0.8VDD

As output sink @ 0.2VDD

300

680

Output Rise Time

15pF load on DO pin, transition time between

600

Output Fall Time

0.1VDD and 0.9VDD

200

Input High Voltage

Input Low Voltage

Output Voltage High

Output Voltage Low

RSSI

SHDN, SQ

SHDN, SQ

DO

DO

0.8VDD

0.8VDD

0.2VDD

0.2VDD

−110dBm RF input level

0.5

RSSI DC Output Voltage Range

−50dBm RF input level

2.0

RSSI Output Current

5kΩ load to GND, −50dBm RF input level

400

RSSI Output Impedance

250

RSSI Response Time

D[4:3] = 00, RF input power stepped from no

input to −50dBm

10

Notes:

1. Exceeding the absolute maximum rating may damage the device.

2. The device is not guaranteed to function outside of its operating rating.

3. Device is ESD sensitive. Use appropriate ESD precautions. Exceeding the absolute maximum rating may damage the device.

4. Encoded bit rate is 1/(shortest pulse duration) that appears at MICRF219A DO pin:

Units

kΩ

nA

µA

ns

V

V

V

V

V

µA

Ω

ms

5. In an ON/OFF keyed (OOK) signal, the signal level goes between a “mark” level (when the RF signal is ON) and a “space” level (when the RF

signal is OFF). Sensitivity is defined as the input signal level when “ON” necessary to achieve a specified BER (bit error rate). BER measured with

the built-in BERT function in Agilent E4432B using PN9 sequence. Sensitivity measurement values are obtained using an input matching network

corresponding to 315MHz or 433.92MHz.

6. CTH source impedance is inversely proportional to the reference frequency. In production test, the typical source impedance value is verified with

12MHz reference frequency.

August 12, 2015

5

Revision 3.0

RadioTech@micrel.com or (408) 944-0800

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