Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

Preview PDF HTML

AD9911/PCB Datasheet(PDF) 22 Page - Analog Devices

No. de pieza AD9911/PCB
Descripción Electrónicos  500 MSPS Direct Digital Synthesizer with 10-Bit DAC
PDF  44 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD9911/PCB Datasheet(HTML) 22 Page - Analog Devices

Back Button AD9911/PCB Datasheet HTML 18Page - Analog Devices AD9911/PCB Datasheet HTML 19Page - Analog Devices AD9911/PCB Datasheet HTML 20Page - Analog Devices AD9911/PCB Datasheet HTML 21Page - Analog Devices AD9911/PCB Datasheet HTML 22Page - Analog Devices AD9911/PCB Datasheet HTML 23Page - Analog Devices AD9911/PCB Datasheet HTML 24Page - Analog Devices AD9911/PCB Datasheet HTML 25Page - Analog Devices AD9911/PCB Datasheet HTML 26Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 22 / 44 page
background image
AD9911
Rev. 0 | Page 22 of 44
modulating phase or amplitude, the word value must be MSB-
aligned in the profile registers; excess bits are ignored. In
modulation mode, bits CFR <23:22> and FR1 <9:8> configure
the modulation type and level. See Table 6 and Table 7 for
settings. Note that the linear sweep enable bit must be set to
Logic 0 in modulation mode.
Table 6.
CFR <23:22>
CFR <14>
Description
0
0
x
Modulation disabled
0
1
0
Amplitude modulation
1
0
0
Frequency modulation
1
1
0
Phase modulation
Table 7.
FR1 <9:8>
Description
0
0
2-level modulation
0
1
4-level modulation
1
0
8-level modulation
1
1
16-level modulation
When both modulation and the RU/RD feature are desired,
unused profile pins or SDIO pins can be assigned. SDIO pins
can only be used for RU/RD.
Table 8.
RU/RD Bits
FR1 <11:10>
Description
0
0
RU/RD disabled.
0
1
Profile Pin 2 and Pin 3 configured for RU/RD
operation.
1
0
Profile Pin 3 configured for RU/RD operation.
1
1
SDIO Pin 1, Pin 2, and Pin 3 configured for
RU/RD operation. Forces the I/O to be used only
in 1-bit mode.
If profile pins are used for RU/RD, Logic 0 sets for ramp up and
Logic 1 sets for ramp down.
To support RU/RD flexibility, it is necessary to assign the profile
pins and/or SDIO Pin 1 to Pin 3 to CH1 operation. This is
controlled by the profile pin configuration (PPC) or PPC bits
(FR1 <14:12>). The modulation descriptions that follow include
data pin assignment. In the modulation descriptions, an “x”
indicates that it does not matter.
2-Level Modulation—No RU/RD
Modulation level bits are set to 00 (2-level). AFP bits are set to
the desired modulation. RU/RD bits and the linear sweep bit are
disabled. Table 9 displays how the profile pins are assigned.
Table 9. 2-Level Modulation
—No RU/RD
Bits FR1<14:12>
P0
P1
P2
P3
x
x
x
N/A
CH1
N/A
N/A
As shown in Table 9, only Profile Pin P1 can be used to
modulate CH1. If Pin P1 is Logic 0 and FSK modulation is
desired, then Profile Register 0 (Register 0x04) frequency is
chosen. If Pin P1 is Logic 1, then Profile Register 1
(Register 0x0A) frequency is chosen.
4-Level Modulation—No RU/RD
Modulation level bits are set to 01 (4-level). AFP bits are set to
the desired modulation. RU/RD bits and the linear sweep bit are
disabled. Table 10 displays how the profile pins are assigned.
Table 10. 4-Level Modulation—No RU/RD
Profile Pin Configuration (PPC) Bits
FR1 <14:12>
P0
P1
P2
P3
0
1
1
CH1
CH1
N/A
N/A
For this condition, the profile register chosen is based on the
2 bit value presented to profile pins <P0:P1>. For example, if
PPC = 011 and <P0:P1>= 11, then the contents of Profile
Register 3 (Register 0x0C) are presented to CH1 output.
8-Level Modulation—No RU/RD
Modulation level bits are set to 10 (8-level). AFP bits are set to
the desired modulation. RU/RD bits and the linear sweep bit are
disabled. Table 11 shows the assignment of profile pins and
channels.
Table 11. 8-Level Modulation—No RU/RD
Profile Pin Config. Bits
FR1 <14:12>
P0
P1
P2
P3
x
0
1
CH1
CH1
CH1
x
For this condition, the profile register (1 of 8) chosen is based
on the 3-bit value presented to the Profile Pin P0 to Pin P2. For
example, if PPC = x01 and <P0:P2> = 111, then the contents of
Profile Register 7 (Register 0x10) are presented to CH1 output.
16-Level Modulation—No RU/RD
Modulation level bits are set to 11 (16-level). AFP bits are set to
the desired modulation. RU/RD bits and the linear sweep bit are
disabled. Table 12 displays how the profile pins and channels are
assigned.
Table 12. 16-Level Modulation—No RU/RD
Profile Pin Config. (PPC) Bits
FR1 <14:12>
P0
P1
P2
P3
x
0
1
CH1
CH1
CH1
CH1
For these conditions, the profile register chosen is based on the
4-bit value presented to Profile Pin P0 to Pin P3. For example, if
PPC = x01 and <P0:P3>= 1110, then the contents of Profile
Register 14 (Register 0x17) are presented to CH1 output.
2-Level Modulation Using Profile Pins for RU/RD
When the RU/RD bits = 01, either Profile Pin P2 or Pin P3 are
available for RU/RD. Note that only a modulation level of two is
available when RU/RD bits = 01. See Table 13 for available pin
assignments.



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


Datasheet Descarga

Go To PDF Page


Enlace URL



¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Enlace a la hoja de datos    |   Intercambio de Enlaces   |   Lista de Fabricantes
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