ADF7023-JBCPZ Analog Devices Inc, ADF7023-JBCPZ Datasheet - Page 43
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ADF7023-JBCPZ
Manufacturer Part Number
ADF7023-JBCPZ
Description
TXRX FSK/GFSK/MSK/GMSK 32LFCSP
Manufacturer
Analog Devices Inc
Series
-r
Datasheet
1.EVAL-ADF7023-JDB1Z.pdf
(100 pages)
Specifications of ADF7023-JBCPZ
Frequency
902MHz ~ 958MHz
Data Rate - Maximum
300kbps
Modulation Or Protocol
FSK, GFSK, GMSK, MSK
Applications
ISM
Power - Output
13.5dBm
Sensitivity
-116dBm
Voltage - Supply
2.2 V ~ 3.6 V
Current - Receiving
12.8mA
Current - Transmitting
32.1mA
Data Interface
PCB, Surface Mount
Memory Size
-
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
32-WFQFN Exposed Pad, CSP
Rf Ic Case Style
LFCSP
No. Of Pins
32
Supply Voltage Range
2.2V To 3.6V
Operating Temperature Range
-40°C To +85°C
Transmitting Current
32.1mA
Data Rate
300Kbps
Modulation Type
2FSK, GFSK, MSK
Rohs Compliant
Yes
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
DATA WHITENING
Data whitening can be employed to avoid long runs of 1s or
0s in the transmitted data stream. This ensures sufficient bit
transitions in the packet, which aids in receiver clock and data
recovery because the encoding breaks up long runs of 1s or 0s
in the transmit packet. The data, excluding the preamble and
sync word, is automatically whitened before transmission by
XOR’ing the data with an 8-bit pseudorandom sequence. At
the receiver, the data is XOR’ e d with the same pseudorandom
sequence, thereby reversing the whitening. The linear feedback
shift register polynomial used is x
dewhitening are enabled by setting DATA_WHITENING = 1 in
the SYMBOL_MODE register (Address 0x11C).
7
+ x
1
+ 1. Data whitening and
Rev. 0 | Page 43 of 100
MANCHESTER ENCODING
Manchester encoding can be used to ensure a dc-free (zero mean)
transmission. The encoded over-the-air bit rate (chip rate) is
double the rate set by the DATA_RATE variable (Address 0x10C
and Address 0x10D). A Binary 0 is mapped to 10, and a Binary 1 is
mapped to 01. Manchester encoding and decoding are applied
to the payload data and the CRC. Manchester encoding and
decoding are enabled by setting MANCHESTER_ENC = 1 in
the SYMBOL_MODE register (Address 0x11C).
8b/10b ENCODING
8b/10b encoding is a byte-orientated encoding scheme that
maps an 8-bit byte to a 10-bit data block. It ensures that the
maximum number of consecutive 1s or 0s (that is, run length)
in any 10-bit transmitted symbol is five. The advantage of this
encoding scheme is that dc balancing is employed without the
efficiency loss of Manchester encoding. The rate loss for 8b/10b
encoding is 0.8, whereas for Manchester encoding, it is 0.5.
Encoding and decoding are applied to the payload data and
the CRC. The 8b/10b encoding and decoding are enabled by
setting EIGHT_TEN_ENC =1 in the SYMBOL_MODE register
(Address 0x11C).
ADF7023-J