MICRF009BM Micrel Inc, MICRF009BM Datasheet - Page 9

• Manufacturer Part Number: MICRF009BM
• Description: IC RECEIVER UHF LOW POWER 16SOIC
• Manufacturer: Micrel Inc

Specifications of MICRF009BM

• Frequency: 300MHz ~ 440MHz
• Sensitivity: -102dBm
• Data Rate - Maximum: 2 kbps
• Modulation Or Protocol: ASK, OOK
• Applications: RKE
• Current - Receiving: 2.9mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: Automatic Tuning
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• 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: Contains lead / RoHS non-compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Not Compliant

For example, if user desires ∆t = 10ms and chooses a
4.7µF CAGC, then the allowable droop is about 144mV.
Using the same equation with 200nA, the worst-case pin
leakage, and assuming 1µA of capacitor leakage in the
same direction, the maximum allowable ∆t (shutdown time)
is about 0.56s for droop recovery in 10ms.
Micrel
January 18, 2005
C
∆t = droop recovery time
∆V = droop voltage
AGC
= AGC capacitor value
9
The ratio of decay-to-attack time-constant is fixed at 1:10
(that is, the attack time constant is 10 times of the decay
time constant). Generally the design value of 1:10 is
adequate for the vast majority of applications. If adjustment
is required, adding a resistor in parallel of the C
capacitor may vary the ratio. The value of the resistor must
be determined on a case-by-case basis.
[phone]
M9999-011805
MICRF009
AGC