June 2002 3 MICRF103
MICRF103 Micrel
Electrical Characteristics
Specifications apply for 4.75V < VDD < 5.5V, VPC = 0.35V, TA = 25°C, freqREFOSC = 13.5625MHz, STBY = VDD. Bold values indicate
–40°C ≤ TA ≤ 85°C unless otherwise noted.
Parameter Condition Min Typ Max Units
Power Supply
Standby Supply Current, IQVSTBY < 0.5V 0.10 µA
MARK Supply Current, ION @868MHz 19 26.5 mA
@915MHz 20 27.5 mA
SPACE Supply Current, IOFF @868MHz 14 18 mA
@915MHz 15 21 mA
MARK/SPACE Ratio 33%@868MHz 16 mA
33%@915MHz 17 mA
RF Output Section and Modulation Limits:
Maximum Power Level, POUT @868MHz (EIRP) -3 dBm
@915MHz (EIRP) -3 dBm
Output Power Variation over supply and temperature ±2 dBm
Extinction ratio for ASK 38 45 dBc
Varactor tuning range Note 5 2.6 3.0 3.3 pF
Reference Oscillator Section
Reference Oscillator Input 300 kΩ
Impedance
Reference Oscillator Source 5.0 µA
Current
Reference Oscillator Input 0.2 1.0 VPP
Voltage (peak-to-peak)
Digital / Control Section
Calibration Time note 7, ASK=HIGH 20 ms
Power Amplifier Output Hold-off note 4, STDBY transition from LOW to HIGH 5 ms
Time from STBY crystal, ESR < 20Ω
Transmitter Stabilization Time from external reference (500mVpp) 9 ms
From STBY crystal, ESR < 20Ω12 ms
Maximum Data rate
- ASK modulation duty cycle of the modulating signal = 50% 115 kbits/s
STBY HIGH VIH enable voltage 0.8VDD V
STBY LOW VIL 0.1VDD
ASK Pin VIH, input high voltage 0.8VDD V
VIL, input low voltage 0.1VDD V
ASK Input Current ASK = 0V, 5.0V input current –10 0.1 10 µA
Absolute Maximum Ratings (Note 1)
Supply Voltage(VDD) .....................................................+6V
Voltage on I/O Pins ............................. VSS–0.3 to VDD+0.3
Storage Temperature Range ...................-65°C to + 150°C
Lead Temperature (soldering, 10 seconds) ........... + 300°C
ESD Rating, Note 3
Operating Ratings (Note 2)
Supply Voltage (VDD) .................................... 4.75V to 5.5V
Maximum Supply Ripple Voltage ...............................10mV
PC Input Range......................................0.1V < VPC < 0.4V
Ambient Operating Temperature (TA) ........ –40°C to +85°C
Programmable Transmitter Frequency Range:
........................................................ 800MHz to 1GHz