MICRF102BM TR Micrel Inc, MICRF102BM TR Datasheet - Page 4

• Manufacturer Part Number: MICRF102BM TR
• Manufacturer: Micrel Inc

Specifications of MICRF102BM TR

• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3.94mm
• Product Height (mm): 1.48mm
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Not Compliant

Parameter
Digital / Control Section
Calibration Time
Power Amplifi er Output Hold Off
Time from STBY
Transmitter Stabilization Time
from STBY
Maximum Data Rate
V
STBY Sink Current
ASK pin
ASK input current
Note 9.
Note 10. After the release of the STDBY, the device requires an initialization time to settle the REFOSC and the internal PLL. The fi rst MARK state
Note. Higher order harmonics were found to be below the noise fl oor of the receiving system for testing.
MICRF102
Frequency Antenna
STBY
Table 1. Transmitted Power Measurement with Transmitted Frequency 433.92MHz, FCC Limits and Compliance
434.03
434.03
868.5
868.5
(MHz)
1302
1736
1302
1736
When the device is fi rst powered up or it loses power momentarily, it goes into the calibration mode to tune up the transmit antenna.
(ASK HIGH) after exit from STDBY needs to be longer than the initialization time. After that, highs and lows in the ASK pin callibrates the
output RF stage. See Figures 2, 3, and 4.
– ASK modulation
Polarity (meters)
Enable voltage
V
V
H
H
V
V
H
H
REFOSC
Height
2.5
1.5
2.5
1
1
1
1
1
+5VTX
Condition
Note 9, ASK data rate 20kbps
Note 10, STDBY transition from LOW to HIGH
Crystal, ESR < 20Ω
From External Reference (500mVpp)
Crystal, ESR < 20Ω
Duty cycle of the modulating signal = 50%
I
V
V
ASK = 0V, 5.0V input current
STBY
IH
IL
Azimuth
, input low voltage
(0-360)
, input high voltage
140
150
150
295
195
280
110
113
= V
+5VSW
C4
100pF
50V
R1
100k
R2
6.8k
DD
EMI Meter Duty Cycle Corrected Corrected 15:231b Limit Margin
(dBµV/m)
C5
4.7µF
6.3V
C6 (np)
4.7µF
6.3V
Reading
C1
0.1µF
16V
64.2
53.1
76.1
60.1
41.1
51.3
49.4
44.5
PC
VDD
VSS
REFOSC
Y1
9.84375MHz
(13.560MHz)
Figure 1.
Correction
MICRF102
4
(dB)
5.4
5.4
5.4
5.4
5.4
5.4
5.4
5.4
ANTN
ANTP
STBY
+5VSW
(np)
R4
ASK
100k
R3
(dBµV/m)
Reading
58.8
47.7
70.7
54.7
35.7
45.9
39.2
44
R5
0Ω
+5VTX
C3
12pF 50V
(2.7pF 50V)
Reading
3427.80
Data
(µV/m)
871.00
242.70
543.30
197.20
158.50
61.00
91.20
C2
8.2pF 50V
(4.7pF 50V)
0.75V
0.8V
Min
–10
20
L1
pcbant
DD
DD
0.6V
(dBµV/m)
Typ
0.1
25
10
19
6
5
80.8
60.8
80.8
60.8
60.8
60.8
54
54
DD
December 2006
0.2V
Max
6.5
10
DD
(dB)
33.1
10.1
26.1
18.3
14.9
21.6
kbits/s
22
10
Unit
ms
ms
ms
ms
µA
µA
V
V
V