MICRF009BM TR Micrel Inc, MICRF009BM TR Datasheet - Page 2

• Manufacturer Part Number: MICRF009BM TR
• Manufacturer: Micrel Inc

Specifications of MICRF009BM TR

• Operating Band Frequency: 300 to 440MHz
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Modulation Type: ASK/OOK
• Product Depth (mm): 3.94mm
• Product Height (mm): 1.48mm
• Product Length (mm): 9.93mm
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Not Compliant

Pin Configuration
Pin Description
Micrel
January 18, 2005
Pin Number
2, 3
10
11
12
13
14
15
16
1
4
5
6
7
8
9
Standard 16-Pin SOIC (M)
REFOSC2
REFOSC1
Pin Name
VDDRF
VDDBB
VSSRF
VSSBB
SWEN
CAGC
SHUT
SEL0
SEL1
CTH
ANT
DO
NC
Pin Function
Bandwidth Selection Bit 0 (Input): Configure to set the desired demodulator filter bandwidth. See Table
1. 0 = VSS, 1 = VDD, don not float SEL0
RF [Analog] Return (Input): Ground return to the RF section power supply. See “Applications
Information” for bypass capacitor details.
Antenna (Input): See “Applications Information” for information on input impedance. For optimal
performance the antenna impedance should be matched to the antenna pin impedance.
RF [Analog] Supply (Input): Positive supply input for the RF section of the IC. VDDBB and VDDRF
should be connected together directly at the IC pins.
Baseband [Digital] Supply (Input): Positive supply input for the baseband section of the IC. VDDBB and
VDDRF should be connected together at the IC pins.
[Data Slicing] Threshold Capacitor (External Component): Capacitor extracts the DC average value
from the demodulated waveform, which becomes the reference for the internal data slicing comparator.
See “Applications Information” for selection.
No connect.
Baseband [Digital] Return (Input): Ground return to the baseband section power supply. See
“Applications Information” for bypass capacitor and layout details.
Digital Output (Output): CMOS level compatible data output signal.
Shutdown (Input): Shutdown-mode logic-level control input. Pull low to enable the receiver. This input
has an internal pulled-up to VDDRF.
AGC Capacitor (External Component): Integrating capacitor for on-chip AGC (automatic gain control).
See “Applications Information” for capacitor selection.
Bandwidth Selection Bit 1 (Input): Must tie to ground. Reserved for future use.
Reference Oscillator (External Component or Input): Timing reference for on-chip tuning and
alignment.
Reference Oscillator (External Component or Input): Timing reference for on-chip tuning and
alignment.
Sweep-Mode Enable (Input): Sweep- or fixed-mode operation control input. When SWEN is high, the
MICRF009 is in sweep mode; when SWEN is low, the receiver operates as a conventional single-
conversion superheterodyne receiver. This pin is internally pulled-up to VDDRF.
2
Note:
SEL0 must connect to VDD = 1 or VSS = 0. Do not float SEL0
Table 1. Nominal Demodulator Filter Bandwidth vs. SEL0,
SEL0
1
0
Operating Mode at 433.92 MHz
Sweep-Mode
1250Hz
625Hz
Demodulator Bandwidth
[phone]
M9999-011805
Fixed-Mode
MICRF009
2500Hz
1250Hz