Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

Preview PDF HTML

ADF7021 Datenblatt(PDF) 49 Page - Analog Devices

Teilenummer ADF7021
Bauteilbeschribung  High Performance Narrow-Band Transceiver IC
PDF  64 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADF7021 Datenblatt(HTML) 49 Page - Analog Devices

Back Button ADF7021 Datasheet HTML 45Page - Analog Devices ADF7021 Datasheet HTML 46Page - Analog Devices ADF7021 Datasheet HTML 47Page - Analog Devices ADF7021 Datasheet HTML 48Page - Analog Devices ADF7021 Datasheet HTML 49Page - Analog Devices ADF7021 Datasheet HTML 50Page - Analog Devices ADF7021 Datasheet HTML 51Page - Analog Devices ADF7021 Datasheet HTML 52Page - Analog Devices ADF7021 Datasheet HTML 53Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 49 / 64 page
background image
Data Sheet
ADF7021
Rev. B | Page 49 of 64
REGISTER 2—TRANSMIT MODULATION REGISTER
P6
0
0
0
0
.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
P2
0
0
1
1
.
.
1
P1
0
1
0
1
.
.
1
0 (PA OFF)
1 (–16.0 dBm)
2
3
.
.
63 (13 dBm)
TFD9
0
0
0
0
.
1
TFD3
0
0
0
0
.
1
...
...
...
...
...
...
...
TFD2
0
0
1
1
.
1
TFD1
0
1
0
1
.
1
0
1
2
3
.
511
Tx_FREQUENCY_DEVIATION
POWER_AMPLIFIER
TxDATA_
INVERT
PA_BIAS
PA_RAMP
MODULATION_
SCHEME
ADDRESS
BITS
PE1
0
1
POWER AMPLIFIER
OFF
ON
PA2
0
0
1
1
PA1
0
1
0
1
PA BIAS
5µA
7µA
9µA
11µA
DI2
0
0
1
1
DI1
0
1
0
1
TxDATA INVERT
NORMAL
INVERT CLK
INVERT DATA
INV CLK AND DATA
S3
0
0
0
0
1
1
1
1
S2
0
0
1
1
0
0
1
1
MODULATION SCHEME
2FSK
GAUSSIAN 2FSK
3FSK
4FSK
OVERSAMPLED 2FSK
RAISED COSINE 2FSK
RAISED COSINE 3FSK
RAISED COSINE 4FSK
S1
0
1
0
1
0
1
0
1
PR3
0
0
0
0
1
1
1
1
PR2
0
0
1
1
0
0
1
1
PA RAMP RATE
NO RAMP
256 CODES/BIT
128 CODES/BIT
64 CODES/BIT
32 CODES/BIT
16 CODES/BIT
8 CODES/BIT
4 CODES/BIT
PR1
0
1
0
1
0
1
0
1
NRC1
0
1
RAISED COSINE ALPHA
0.7
0.5 (Default)
fDEV
PA LEVEL
Figure 64. Register 2—Transmit Modulation Register Map
The 2FSK/3FSK/4FSK frequency deviation is expressed by the
following:
Direct output
Frequency Deviation [Hz] =
16
2
PFD
ON
CY_DEVIATI
Tx_FREQUEN
×
With RF_DIVIDE_BY_2 (R1_DB18) enabled
Frequency Deviation [Hz] =
16
2
5
.
0
PFD
ON
CY_DEVIATI
Tx_FREQUEN
×
×
where Tx_FREQUENCY_DEVIATION is set by DB[19:27] and
PFD is the PFD frequency.
In the case of 4FSK, there are tones at ±3 × the frequency
deviation and at ±1 × the deviation. The power amplifier (PA)
ramps at the programmed rate (R2_DB[8:10]) until it reaches
its programmed level DB[13:18]. If the PA is enabled/disabled
by the PA_ENABLE bit (DB7), it ramps up and down. If it is
enabled/disabled by the Tx/Rx bit (R0_DB27), it ramps up and
turns hard off.
R-COSINE_ALPHA sets the roll-off factor (alpha) of the raised
cosine data filter to either 0.5 or 0.7. The alpha is set to 0.5 by
default, but the raised cosine filter bandwidth can be increased
to provide less aggressive data filtering by using an alpha of 0.7.



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64


Datenblatt Download

Go To PDF Page


Link URL



War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Link zum Datenblatt    |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com