Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TDA8922C Datasheet(PDF) 7 Page - NXP Semiconductors

Part No. TDA8922C
Description  2 X 75 W class-D power amplifier
Download  40 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

TDA8922C Datasheet(HTML) 7 Page - NXP Semiconductors

Zoom Inzoom in Zoom Outzoom out
 7 / 40 page
background image
TDA8922C_1
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 01 — 7 September 2009
7 of 40
NXP Semiconductors
TDA8922C
2
× 75 W class-D power amplifier
To ensure the coupling capacitors at the inputs (CIN in Figure 10) are fully charged before
the outputs start switching, a delay is inserted during the transition from Mute to Operating
mode. An overview of the start-up timing is provided in Figure 5.
(1) First 1
4 pulse down.
Upper diagram: When switching from Standby to Mute, there is a delay of approximately 100 ms
before the output starts switching. The audio signal will become available once VMODE reaches the
Operating mode level (see Table 8), but not earlier than 150 ms after switching to Mute. To start-up
pop noise-free, it is recommended that the time constant applied to pin MODE be at least 350 ms
for the transition between Mute and Operating modes.
Lower diagram: When switching directly from Standby to Operating mode, there is a delay of
100 ms before the outputs start switching. The audio signal becomes available after a second
delay of 50 ms. To start-up pop noise-free, it is recommended that the time-constant applied to pin
MODE be at least 500 ms for the transition between Standby and Operating modes.
Fig 5.
Timing on mode selection input pin MODE
2.1
V < VMODE < 2.9 V
audio output
operating
standby
mute
50 %
duty cycle
> 4.2 V
0 V (SGND)
time
010aaa584
VMODE
100 ms
50 ms
modulated PWM
> 350 ms
2.1
V < VMODE < 2.9 V
audio output
operating
standby
mute
50 %
duty cycle
> 4.2 V
0 V (SGND)
time
VMODE
100 ms
50 ms
modulated PWM
> 350 ms
(1)
(1)


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 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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