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MICRF007
Ordering Information
Part Number
Micrel
Standard
MICRF007BM
Pb-Free
MICRF007YM
Junction Temp. Range
–40°C to +85°C
Package
8-pin SOIC
Pin Con?guration
MICRF007BM
VSS 1
ANT 2
VDD 3
CTH 4
8 REFOSC
7 CAGC
6 SHUT
5 DO
8-Pin SOIC (M)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
Pin Name
VSS
ANT
VDD
CTH
DO
SHUT
CAGC
REFOSC
Pin Function
Ground: Signal and power ground.
Antenna (Analog Input): High-impedance, internally AC-coupled receiver
input. For optimal performance, the ANT pin should be impedance matched
to the antenna.
Power Supply (Input): Positive supply input. Connect a low ESL, low ESR
de-coupling capacitor from this pin to VSS. Lead lengths should be as short
as possible.
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.
Data Output (Digital Output): CMOS-level compatible data output signal.
Shutdown (Digital Input): Shutdown-mode logic-level control input. Pull low
to enable the receiver. Internally pulled-up to VDD.
Automatic Gain Control (Analog I/O): Connect an external capacitor to set
the attack/decay ratio of the on-chip automatic gain control.
Reference Oscillator: Timing reference, sets the RF receive frequency.
M9999-021705
2
February 17, 2005
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