MICRF103 Datasheet, PDF (3/7 Pages) Micrel Semiconductor – QwikRadio UHF ASK Transmitter

MICRF103
Absolute Maximum Ratings (Note 1)
Supply Voltage(V_DD) ..................................................... +6V
Voltage on I/O Pins ............................. V_SS–0.3 to V_DD+0.3
Storage Temperature Range ................... -65°C to + 150°C
Lead Temperature (soldering, 10 seconds) ........... + 300°C
ESD Rating, Note 3
Micrel
Operating Ratings (Note 2)
Supply Voltage (V_DD) .................................... 4.75V to 5.5V
Maximum Supply Ripple Voltage ............................... 10mV
PC Input Range ...................................... 0.1V < V_PC < 0.4V
Ambient Operating Temperature (T_A) ........ –40°C to +85°C
Programmable Transmitter Frequency Range:
........................................................ 800MHz to 1GHz
Electrical Characteristics
Specifications apply for 4.75V < V_DD < 5.5V, V_PC = 0.35V, T_A = 25°C, freq_REFOSC = 13.5625MHz, STBY = V_DD. Bold values indicate
–40°C ≤ T_A ≤ 85°C unless otherwise noted.
Parameter
Condition
Min Typ Max Units
Power Supply
Standby Supply Current, I_Q
MARK Supply Current, I_ON
V_STBY < 0.5V
@868MHz
@915MHz
0.10
µA
19 26.5 mA
20 27.5 mA
SPACE Supply Current, I_OFF
@868MHz
@915MHz
14
18
mA
15
21
mA
MARK/SPACE Ratio
33%@868MHz
16
mA
33%@915MHz
17
mA
RF Output Section and Modulation Limits:
Maximum Power Level, P_OUT
@868MHz (EIRP)
@915MHz (EIRP)
-3
dBm
-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
Impedance
300
kΩ
Reference Oscillator Source
Current
5.0
µA
Reference Oscillator Input
Voltage (peak-to-peak)
0.2
1.0
V_PP
Digital / Control Section
Calibration Time
note 7, ASK=HIGH
20
ms
Power Amplifier Output Hold-off note 4, STDBY transition from LOW to HIGH
Time from STBY
crystal, ESR < 20Ω
5
ms
Transmitter Stabilization Time
from external reference (500mVpp)
9
ms
From STBY
crystal, ESR < 20Ω
12
ms
Maximum Data rate
- ASK modulation duty cycle of the modulating signal = 50%
115
kbits/s
STBY HIGH
STBY LOW
ASK Pin
ASK Input Current
V_IH enable voltage
V_IL
V_IH, input high voltage
V_IL, input low voltage
ASK = 0V, 5.0V input current
0.8V_DD
V
0.1V_DD
0.8V_DD
V
0.1V_DD V
–10 0.1
10
µA
June 2002
3
MICRF103