EVAL-ADF7021-VDB2Z Analog Devices Inc, EVAL-ADF7021-VDB2Z Datasheet - Page 8

• Manufacturer Part Number: EVAL-ADF7021-VDB2Z
• Description: 868 - 870MHz - EVALUATION BOARD
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of EVAL-ADF7021-VDB2Z

• Frequency: 868MHz ~ 870MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: ADF7021
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADF7021-V
Parameter
IMAGE CHANNEL REJECTION
BLOCKING
SATURATION (MAXIMUM
RECEIVED SIGNAL STRENGTH
AUTOMATIC FREQUENCY LOOP
Rx SPURIOUS EMISSIONS
LNA INPUT IMPEDANCE
1
2
3
4
5
Using Gaussian or raised cosine filtering. The frequency deviation should be chosen to ensure that the transmit-occupied signal bandwidth is within the receiver
IF filter bandwidth.
4FSK f
Calibration of the image rejection used an external RF source.
For received signal levels < −100 dBm, it is recommended that the RSSI readback value be averaged over a number of samples to improve RSSI accuracy at low input power.
Filtered conductive receive spurious emissions are measured on the EVAL-ADF7021-VDBxZ, which includes a T-stage harmonic filter (two inductors and one capacitor).
868 MHz
460 MHz
±1 MHz
±2 MHz
±5 MHz
±10 MHz
INPUT LEVEL)
INDICATION (RSSI)
Input Power Range
Linearity
Absolute Accuracy
Response Time
(AFC)
Pull-In Range, Minimum
Pull-In Range, Maximum
Response Time
Accuracy
External 920 MHz VCO
External 920 MHz VCO
External 1738 MHz VCO
External 1738 MHz VCO
f
f
f
f
f
f
f
f
RF
RF
RF
RF
RF
RF
RF
RF
= 915 MHz
= 868 MHz
= 470 MHz
= 450 MHz
= 426 MHz
= 315 MHz
= 175 MHz
= 169 MHz
DEV
is defined as the frequency spacing from the RF carrier to +f
4
5
Min
Typ
26/39
29/50
−29.5
−26.5
−26
−25.5
12
−120 to −47
±2
±3
333
0.5
1.5 × IF_
FILTER_BW
96
0.5
−54/−88
−45/−66
−85/−85
−39/−52
24 − j60
26 − j63
58 − j124
63 − j129
68 − j134
96 − j160
178 − j190
182.5 − j194
Max
DEV
or −f
Rev. 0 | Page 8 of 60
DEV
. It is also equal to half the frequency spacing between adjacent symbols.
Unit
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dB
dB
μs
kHz
kHz
Bits
kHz
dBm
dBm
dBm
dBm
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Test Conditions/Comments
Desired signal (2FSK, 9.6 kbps, ±4 kHz deviation) is 3 dB
above the sensitivity point (BER = 10
ferer (2FSK, 9.6 kbps, ±4 kHz deviation) is placed at the
image frequency of f
increased until BER = 10
Uncalibrated/calibrated,
Uncalibrated/calibrated,
Desired signal is 3 dB above the sensitivity point of
−109.5 dBm; rejection is measured as the level of an
unmodulated interferer to cause a BER of 10
desired signal; as per ETSI EN 300 220-1
2FSK mode, BER = 10
Input power range = −100 dBm to −47 dBm
Input power range = −100 dBm to −47 dBm
As per AGC gain stage, AGC clock = 3 kHz
Range is programmable in Register 10 (Bits[DB31:DB24])
Range is programmable in Register 10 (Bits[DB31:DB24])
Dependent on modulation index
Input power range = −100 dBm to +12 dBm
<1 GHz at antenna input, unfiltered conductive/filtered
conductive
>1 GHz at antenna input, unfiltered conductive/filtered
conductive
<1 GHz at antenna input, unfiltered conductive/filtered
conductive
>1 GHz at antenna input, unfiltered conductive/filtered
conductive
RFIN to RFGND; refer to the AN-859 Application Note for
other frequencies
RF
−3
− 200 kHz; the interferer level is
−2
3
3
V
V
DD
DD
= 3.0 V, T
= 3.0 V, T
−2
); modulated inter-
A
A
= 25°C
= 25°C
−2
for the