ADF7021
Data Sheet
TRANSMISSION SPECIFICATIONS
Table 2.
Parameter
Min
Typ
Max
Unit Test Conditions/Comments
DATA RATE
2FSK, 3FSK
4FSK
0.05
0.05
251
kbps IF_BW = 25 kHz
32.82 kbps IF_BW = 25 kHz
MODULATION
Frequency Deviation (fDEV
3
)
0.056
0.306
56
28.26 kHz
PFD = 3.625 MHz
PFD = 20 MHz
PFD = 3.625 MHz
156
kHz
Hz
Deviation Frequency Resolution
Gaussian Filter BT
0.5
Raised Cosine Filter Alpha
0.5/0.7
Programmable
TRANSMIT POWER
Maximum Transmit Power4
Transmit Power Variation vs.
Temperature
+13
1
dBm VDD = 3.0 V, TA = 25°C
dB
−40°C to +85°C
Transmit Power Variation vs. VDD
Transmit Power Flatness
Programmable Step Size
1
1
dB
dB
dB
2.3 V to 3.6 V at 915 MHz, TA = 25°C
902 MHz to 928 MHz, 3 V, TA = 25°C
−20 dBm to +13 dBm
0.3125
ADJACENT CHANNEL POWER (ACP)
426 MHz, External Inductor VCO
12.5 kHz Channel Spacing
PFD = 9.84 MHz
−50
−50
dBc
dBc
Gaussian 2FSK modulation, measured in a 4.25 kHz bandwidth
at 12.5 kHz offset, 2.4 kbps PN9 data, 1.2 kHz frequency deviation,
compliant with ARIB STD-T67
Gaussian 2FSK modulation, measured in a 8 kHz bandwidth at
25 kHz offset, 9.6 kbps PN9 data, 2.4 kHz frequency deviation,
compliant with ARIB STD-T67
25 kHz Channel Spacing
868 MHz, Internal Inductor VCO
12.5 kHz Channel Spacing
PFD = 19.68 MHz
−46
−43
dBm Gaussian 2FSK modulation, 10 dBm output power, measured in
a 6.25 kHz bandwidth at 12.5 kHz offset, 2.4 kbps PN9 data,
1.2 kHz frequency deviation, compliant with ETSI EN 300-220
dBm Gaussian 2FSK modulation, 10 dBm output power, measured in
a 12.5 kHz bandwidth at 25 kHz offset, 9.6 kbps PN9 data,
2.4 kHz frequency deviation, compliant with ETSI EN 300-220
25 kHz Channel Spacing
433 MHz, Internal Inductor VCO
12.5 kHz Channel Spacing
PFD = 19.68 MHz
−50
−47
dBm Gaussian 2FSK modulation, 10 dBm output power, measured in
a 6.25 kHz bandwidth at 12.5 kHz offset, 2.4 kbps PN9 data,
1.2 kHz frequency deviation, compliant with ETSI EN 300-220
dBm Gaussian 2FSK modulation, 10 dBm output power, measured in
a 12.5 kHz bandwidth at 25 kHz offset, 9.6 kbps PN9 data,
2.4 kHz frequency deviation, compliant with ETSI EN 300-220
25 kHz Channel Spacing
OCCUPIED BANDWIDTH
99.0% of total mean power; 12.5 kHz channel spacing (2.4 kbps
PN9 data, 1.2 kHz frequency deviation); 25 kHz channel spacing
(9.6 kbps PN9 data, 2.4 kHz frequency deviation)
2FSK Gaussian Data Filtering
12.5 kHz Channel Spacing
25 kHz Channel Spacing
2FSK Raised Cosine Data Filtering
12.5 kHz Channel Spacing
25 kHz Channel Spacing
3FSK Raised Cosine Filtering
12.5 kHz Channel Spacing
25 kHz Channel Spacing
4FSK Raised Cosine Filtering
25 kHz Channel Spacing
3.9
9.9
kHz
kHz
4.4
10.2
kHz
kHz
3.9
9.5
kHz
kHz
19.2 kbps PN9 data, 1.2 kHz frequency deviation
kHz
13.2
Rev. B | Page 6 of 64
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