ADF7020BCPZ Datasheet, PDF (1/48 Pages) Analog Devices – High Performance, ISM Band, FSK/ASK Transceiver IC

Data Sheet
High Performance, ISM Band,
FSK/ASK Transceiver IC
ADF7020
FEATURES
Low power, low IF transceiver
Frequency bands
431 MHz to 478 MHz
862 MHz to 956 MHz
Data rates supported
0.15 kbps to 200 kbps, FSK
0.15 kbps to 64 kbps, ASK
2.3 V to 3.6 V power supply
Programmable output power
−16 dBm to +13 dBm in 0.3 dBm steps
Receiver sensitivity
−119 dBm at 1 kbps, FSK
−112 dBm at 9.6 kbps, FSK
−106.5 dBm at 9.6 kbps, ASK
Low power consumption
19 mA in receive mode
26.8 mA in transmit mode (10 dBm output)
−3 dBm IIP3 in high linearity mode
On-chip VCO and fractional-N PLL
On-chip 7-bit ADC and temperature sensor
Fully automatic frequency control loop (AFC) compensates
for ±25 ppm crystal at 862 MHz to 956 MHz or±50 ppm at
431 MHz to 478 MHz
Digital RSSI
Integrated Tx/Rx switch
Leakage current of <1 µA in power-down mode
APPLICATIONS
Low cost wireless data transfer
Remote control/security systems
Wireless metering
Keyless entry
Home automation
Process and building control
Wireless voice
RSET
CREG[1:4]
FUNCTIONAL BLOCK DIAGRAM
ADCIN
MUXOUT
R_LNA
LDO(1:4)
OFFSET
CORRECTION
TEMP
SENSOR
TEST MUX
ADF7020
RFIN
RFINB
RFOUT
LNA
GAIN
IF FILTER
RSSI
MUX _{7-BIT ADC}
FSK/ASK
DEMODULATOR
OFFSET
CORRECTION
AGC
CONTROL
FSK MOD
CONTROL
GAUSSIAN
FILTER
Σ-Δ
MODULATOR
AFC
CONTROL
DIVIDERS/
MUXING
DIV P
N/N + 1
VCO
CP
PFD
DIV R
OSC
CLK
DIV
DATA
SYNCHRONIZER
Tx/Rx
CONTROL
SERIAL
PORT
VCOIN CPOUT
OSC1 OSC2
Figure 1.
CLKOUT
CE
DATA CLK
DATA I/O
INT/LOCK
SLE
SDATA
SREAD
SCLK
Rev. D
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