EVAL-ADF7021DBZ5 Datasheet, PDF (9/64 Pages) Analog Devices – High Performance Narrow-Band Transceiver IC

Data Sheet
ADF7021
Parameter
ADJACENT CHANNEL REJECTION
868 MHz
Min Typ
12.5 kHz Channel Spacing
25
25 kHz Channel Spacing
27
25 kHz Channel Spacing
39
426 MHz, External Inductor VCO
12.5 kHz Channel Spacing
25
25 kHz Channel Spacing
30
25 kHz Channel Spacing
41
CO-CHANNEL REJECTION
868 MHz
−3
IMAGE CHANNEL REJECTION
900 MHz
450 MHz
450 MHz, External Inductor VCO
BLOCKING
23/39
29/50
38/53
±1 MHz
±2 MHz
±5 MHz
±10 MHz
SATURATION
(MAXIMUM INPUT LEVEL)
RSSI
Range at Input²
Linearity
Absolute Accuracy
Response Time
AFC
Pull-In Range
Response Time
Accuracy
Rx SPURIOUS EMISSIONS³
Internal Inductor VCO
69
75
78
78.5
12
−120 to
−47
±2
±3
300
0.5
48
0.5
−91/−91
−52/−70
External Inductor VCO
−62/−72
−64/−85
Max
Unit Test Conditions/Comments
Wanted signal is 3 dB above the sensitivity point (BER = 10^−3);
unmodulated interferer is at the center of the adjacent
channel; rejection measured as the difference between
interferer level and wanted signal level in dB
dB 12.5 kHz IF_BW
dB 25 kHz IF_BW
dB 18 kHz IF_BW
Wanted signal 3 dB above reference sensitivity point
(BER = 10^−2); modulated interferer (1 kHz sine, ±2 kHz deviation)
at the center of the adjacent channel; rejection measured as
the difference between interferer level and reference
sensitivity level in dB
dB 12.5 kHz IF_BW
dB 25 kHz IF_BW
dB 18 kHz IF_BW, compliant with ARIB STD-T67
Wanted signal (2FSK, 9.6 kbps, ±4 kHz deviation) is 10 dB
above the sensitivity point (BER = 10^−3), modulated interferer
dB
Wanted signal (2FSK, 9.6 kbps, ±4 kHz deviation) is 10 dB
above the sensitivity point (BER = 10^−3); modulated interferer
(2FSK, 9.6 kbps, ±4 kHz deviation) is placed at the image
frequency of fRF − 200 kHz; interferer level is increased until
BER = 10^−3
dB Uncalibrated/calibrated¹, VDD = 3.0 V, TA = 25°C
dB Uncalibrated/calibrated¹,VDD = 3.0 V, TA = 25°C
dB Uncalibrated/calibrated¹, VDD = 3.0 V, TA = 25°C
Wanted signal is 10 dB above the input sensitivity level;
CW interferer level is increased until BER = 10^−3
dB
dB
dB
dB
dBm 2FSK mode, BER = 10^−3
dBm
dB Input power range = −100 dBm to −47 dBm
dB Input power range = −100 dBm to −47 dBm
µs See the RSSI/AGC section
1.5 × IF_BW kHz
Bits
kHz
The range is programmable, R10_DB[24:31]
Input power range = −100 dBm to +12 dBm
dBm <1 GHz at antenna input, unfiltered conductive/filtered
conductive
dBm >1 GHz at antenna input, unfiltered conductive/filtered
conductive
dBm <1 GHz at antenna input, unfiltered conductive/filtered
conductive
dBm >1 GHz at antenna input, unfiltered conductive/filtered
conductive
Rev. B | Page 9 of 64