MICRF002BM データシートの表示（PDF） - Micrel
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MICRF002BM Datasheet PDF : 16 Pages
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MICRF002/RF022
Pin Description
Pin Number
16-Pin Pkg.
1
Pin Number
8-Pin Pkg.
2, 3
1
4
2
5
3
6
7
4
8
9
10
5
11
6
12
13
7
14
15
8
16
Pin Name
SEL0
VSSRF
ANT
VDDRF
VDDBB
CTH
NC
VSSBB
DO
SHUT
WAKEB
CAGC
SEL1
REFOSC
SWEN
Micrel
Pin Function
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
March 2003
3
MICRF002/RF022
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