MICRF022BM-FS24 Micrel Inc, MICRF022BM-FS24 Datasheet - Page 3

• Manufacturer Part Number: MICRF022BM-FS24
• Description: IC RECEIVER ASK 300-440MHZ 8SOIC
• Manufacturer: Micrel Inc

Specifications of MICRF022BM-FS24

• Frequency: 300MHz ~ 440MHz
• Sensitivity: -97dBm
• Data Rate - Maximum: 10 kbps
• Modulation Or Protocol: ASK, OOK
• Applications: RKE
• Current - Receiving: 2.2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -

Pin Description
Micrel, Inc.
July 2008
Pin Number
SOIC-16
2, 3
10
11
12
13
14
15
16
1
4
5
6
7
8
9
Pin Number
SOIC-8
–
1
2
3
–
4
–
–
5
6
–
7
–
8
–
Pin Name
REFOSC
WAKEB
VDDRF
VDDBB
VSSRF
VSSBB
SWEN
CAGC
SHUT
SEL0
SEL1
ANT
CTH
DO
NC
Pin Name
Bandwidth Selection Bit 0 (Digital Input): Used in conjunction with SEL1 to set
the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to
VDDRF.
RF Power Supply: Ground return to the RF section power supply.
Antenna (Analog Input): For optimal performance the ANT pin should be
impedance matched to the antenna. See “Applications Information” for
information on input impedance and matching techniques.
RF Power Supply: Positive supply input for the RF section of the IC.
Base-Band Power Supply: Positive supply input for the baseband section
(digital section) of the IC.
Data Slicing Threshold Capacitor (Analog I/O): Capacitor connected to this
pin extracts the dc average value from the demodulated waveform which
becomes the reference for the internal data slicing comparator.
Not internally connected
Base-Band Power Supply: Ground return to the baseband section power
supply.
Data Output (Digital Output)
Shutdown (Digital Input): Shutdown-mode logic-level control input. Pull low to
enable the receiver. Internally pulled-up to VDDRF.
Wakeup (Digital Output): Active-low output that indicates detection of an
incoming RF signal.
Automatic Gain Control (Analog I/O): Connect an external capacitor to set the
attack/decay rate of the on-chip automatic gain control.
Bandwidth Selection Bit 1 (Digital Input): Used in conjunction with SEL0 to set
the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to
VDDRF.
Reference Oscillator: Timing reference, sets the RF receive frequency.
Sweep-Mode Enable (Digital Input): Sweep- or Fixed-mode operation control
input. SWEN high= sweep mode; SWEN low = conventional superheterodyne
receiver. Internally pulled-up to VDDRF.
3
MICRF002/RF022
M9999-070808