Motore di ricerca datesheet componenti elettronici
  Italian  ▼
ALLDATASHEETIT.COM

X  

LM1971 Scheda tecnica(PDF) 7 Page - Texas Instruments

Il numero della parte LM1971
Spiegazioni elettronici  Overture Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

LM1971 Scheda tecnica(HTML) 7 Page - Texas Instruments

Back Button LM1971_14 Datasheet HTML 3Page - Texas Instruments LM1971_14 Datasheet HTML 4Page - Texas Instruments LM1971_14 Datasheet HTML 5Page - Texas Instruments LM1971_14 Datasheet HTML 6Page - Texas Instruments LM1971_14 Datasheet HTML 7Page - Texas Instruments LM1971_14 Datasheet HTML 8Page - Texas Instruments LM1971_14 Datasheet HTML 9Page - Texas Instruments LM1971_14 Datasheet HTML 10Page - Texas Instruments LM1971_14 Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 20 page
background image
LM1971
www.ti.com
SNAS104B – FEBRUARY 1995 – REVISED APRIL 2013
APPLICATION INFORMATION
SERIAL DATA FORMAT
The LM1971 uses a 3-wire serial communication format that is easily controlled by a microcontroller. The timing
for the 3-wire set, comprised of DATA, CLOCK, and LOAD is shown in Figure 15. As depicted in Figure 15, the
LOAD line is to go low at least 150 ns before the rising edge of the first clock pulse and is to remain low
throughout the transmission of the 16 data bits. The serial data is composed of an 8-bit address, which must
always be set to 0000 0000 to select the single audio channel, and 8 bits for attenuation setting. For both
address data and attenuation setting data, the MSB is sent first with the address data preceding the attenuation
data. Please refer to Figure 16 to confirm the serial data format transfer process.
Table 1 shows the various Address and Data byte values for different attenuation settings. Note that Address
bytes other than 0000 0000 are ignored.
μPOT SYSTEM ARCHITECTURE
The
μPot's digital interface is essentially a shift register where serial data is shifted in, latched, and then
decoded. Once new data is shifted in, the LOAD line goes high, latching in the new data. The data is then
decoded and the appropriate switch is activated to set the desired attenuation level. This process is continued
each and every time an attenuation change is made. When the µPot is powered up, it is placed into the Mute
mode.
μPOT DIGITAL COMPATIBILITY
The
μPot's digital interface section is compatible with TTL or CMOS logic. The shift register inputs act upon a
threshold of two diode drops above the ground level (Pin 3) or approximately 1.4V.
Table 1. Attenuator Register Set Description
Address Register (Byte 0)
MSB LSB
A7–A0
0000 0000
Channel 1
0000 0001
Ignored
0000 0010
Ignored
Data Register (Byte 1)
Contents
Attenuation (dB)
MSB LSB
D7–D0
0000 0000
0.0
0000 0001
1.0
0000 0010
2.0
0000 0011
3.0
:::::
::
0001 0000
16.0
0001 0001
17.0
0001 0010
18.0
0001 0011
19.0
:::::
::
0011 1101
61.0
0011 1110
62.0
0011 1111
96 (Mute)
0100 0000
96 (Mute)
:::::
::
1111 1110
96 (Mute)
1111 1111
96 (Mute)
Copyright © 1995–2013, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: LM1971


Codice articolo simile - LM1971_14

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
National Semiconductor ...
LM1971M NSC-LM1971M Datasheet
248Kb / 11P
   LM1971 Overture??Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator with/Mute
logo
Texas Instruments
LM1971M TI-LM1971M Datasheet
939Kb / 19P
[Old version datasheet]   LM1971 Overture Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator
LM1971MX TI-LM1971MX Datasheet
939Kb / 19P
[Old version datasheet]   LM1971 Overture Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator
logo
National Semiconductor ...
LM1971N NSC-LM1971N Datasheet
248Kb / 11P
   LM1971 Overture??Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator with/Mute
More results

Descrizione simile - LM1971_14

Produttore elettroniciIl numero della parteScheda tecnicaSpiegazioni elettronici
logo
Texas Instruments
LM1971MX TI-LM1971MX Datasheet
939Kb / 19P
[Old version datasheet]   LM1971 Overture Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator
logo
National Semiconductor ...
LM1971 NSC-LM1971 Datasheet
248Kb / 11P
   LM1971 Overture??Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator with/Mute
logo
STMicroelectronics
TDA7437N STMICROELECTRONICS-TDA7437N_06 Datasheet
353Kb / 34P
   Digitally controlled audio processor
logo
Princeton Technology Co...
PT2037 PTC-PT2037 Datasheet
259Kb / 6P
   Digitally Controlled Audio Processor
logo
STMicroelectronics
TDA7342 STMICROELECTRONICS-TDA7342 Datasheet
97Kb / 14P
   DIGITALLY CONTROLLED AUDIO PROCESSOR
November 1999
TDA7348 STMICROELECTRONICS-TDA7348 Datasheet
193Kb / 14P
   DIGITALLY CONTROLLED AUDIO PROCESSOR
November 1994
TDA7342EQ2N STMICROELECTRONICS-TDA7342EQ2N Datasheet
222Kb / 21P
   Digitally controlled audio processor
TDA7348 STMICROELECTRONICS-TDA7348_07 Datasheet
220Kb / 20P
   Digitally controlled audio processor
TDA7343 STMICROELECTRONICS-TDA7343 Datasheet
100Kb / 14P
   DIGITALLY CONTROLLED AUDIO PROCESSOR
November 1999
TDA7437N STMICROELECTRONICS-TDA7437N Datasheet
139Kb / 23P
   DIGITALLY CONTROLLED AUDIO PROCESSOR
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


Scheda tecnica Scarica

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEETIT.COM
Lei ha avuto il aiuto da alldatasheet?  [ DONATE ] 

Di alldatasheet   |   Richest di pubblicita   |   contatti   |   Privacy Policy   |   scambio Link   |   Ricerca produttore
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