ADF7021BCPZ Analog Devices Inc, ADF7021BCPZ Datasheet - Page 56

• Manufacturer Part Number: ADF7021BCPZ
• Description: IC, NARROW BAND TXRX, 80-950MHZ LFCSP-48
• Manufacturer: Analog Devices Inc

Specifications of ADF7021BCPZ

• Receiving Current: 26.4mA
• Transmitting Current: 32.3mA
• Data Rate: 32.8Kbps
• Frequency Range: 80MHz To 950MHz
• Rf Ic Case Style: LFCSP
• No. Of Pins: 48
• Supply Voltage Range: 2.3V To 3.6V
• Frequency: 80MHz ~ 650MHz, 862MHz ~ 940MHz
• Data Rate - Maximum: 33kbps
• Modulation Or Protocol: 2-FSK, 3-FSK, 4-FSK, MSK
• Applications: Keyless Entery, Pagers, WMTS
• Power - Output: -20dBm ~ 13dBm
• Sensitivity: -130dBm
• Voltage - Supply: 2.3 V ~ 6 V
• Current - Receiving: 20mA
• Current - Transmitting: 32.3mA @ 10dBm
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LFCSP
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 7mm
• Product Length (mm): 7mm
• Operating Supply Voltage (min): 2.3V
• Operating Supply Voltage (typ): 3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: EVAL-ADF7021BZ5 - BOARD DAUGHTER MATCH UNPOPULATEDEVAL-ADF7021BZ2 - BOARD DAUGHTER 860/870MHZEVAL-ADF7021BIZ - BOARD DAUGHTER 421/440MHZEVAL-ADF7021BEZ - BOARD DAUGHTER 420/440MHZ
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant

ADF7021
REGISTER 9—AGC REGISTER
In receive mode, AGC is set to automatic AGC by default on
power-up. The default thresholds are AGC_LOW_THRESHOLD =
30 and AGC_HIGH_THRESHOLD = 70. See the RSSI/AGC
section for details. It is only necessary to program this register if
AGC settings, other than the defaults, are required.
ML1
0
1
LI2
0
MIXER LINEARITY
DEFAULT
HIGH
LI1
0
LNA BIAS
800µA (DEFAULT)
LG1
0
1
LNA MODE
DEFAULT
REDUCED GAIN
FI1
0
1
FG2
0
0
1
1
FILTER CURRENT
LOW
HIGH
FG1
0
1
0
1
FILTER GAIN
8
24
72
INVALID
FILTER_
GAIN
LG2
0
0
1
1
GAIN
LG1
0
1
0
1
LNA_
Figure 71. Register 9—AGC Register Map
LNA GAIN
3
10
30
INVALID
MODE
0
1
2
3
AGC_
Rev. A | Page 56 of 64
AGC MODE
AUTO AGC
MANUAL AGC
FREEZE AGC
RESERVED
AGC_HIGH_THRESHOLD
AGC high and low settings must be more than 30 apart to
ensure correct operation.
An LNA gain of 30 is available only if LNA_MODE (DB25) is
set to 0.
GH7
0
0
0
0
.
.
.
1
1
1
GH6
0
0
0
0
.
.
.
0
0
0
GL7
0
0
0
0
.
.
.
1
1
1
GH5
0
0
0
0
.
.
.
0
0
1
GL6
0
0
0
0
.
.
.
1
1
1
GH4
0
0
0
0
.
.
.
1
1
0
GL5
0
0
0
0
.
.
.
1
1
1
GH3
0
0
0
1
.
.
.
1
1
0
AGC_LOW_THRESHOLD
GL4
0
0
0
0
.
.
.
1
1
1
GH2
0
1
1
0
.
.
.
1
1
0
GL3
0
0
0
1
.
.
.
1
1
1
GH1
1
0
1
0
.
.
.
0
1
0
GL2
0
1
1
0
.
.
.
0
1
1
AGC HIGH
THRESHOLD
1
2
3
4
.
.
.
78
79
80
GL1
1
0
1
0
.
.
.
1
0
1
AGC LOW
THRESHOLD
1
2
3
4
.
.
.
61
62
63
ADDRESS
BITS