TDA8942P datasheet(4/23 Pages) PHILIPS

No de pièce	TDA8942P

Description	2 x 1.5 W stereo Bridge Tied Load BTL audio amplifier

Download	23 Pages

Scroll/Zoom	100%

Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

Logo

4 / 23 page

Philips Semiconductors

TDA8942P

2 x 1.5 W stereo BTL audio ampliﬁer

Product speciﬁcation

Rev. 02 — 14 March 2000

4 of 23

9397 750 06862

8.

Functional description

The TDA8942P is a stereo BTL audio power ampliﬁer capable of delivering 2

× 1.5 W

output power to a 16

Ω load at THD = 10%, using a 9 V power supply. The voltage

gain is ﬁxed at 32 dB.

With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’

and to ‘operating’ mode.

The TDA8942P outputs are protected by an internal thermal shutdown protection

mechanism and a short-circuit protection.

8.1 Input conﬁguration

The TDA8942P inputs can be driven symmetrical (ﬂoating) as well as asymmetrical.

In the asymmetrical mode one input pin is connected via a capacitor to the signal

ground which should be as close as possible to the SVR (electrolytic) capacitor

ground. Note that the DC level of the input pins is half of the supply voltage VCC, so

coupling capacitors for both pins are necessary.

The input cut-off frequency is:

(1)

For Ri =45kΩ and Ci = 220 nF:

(2)

As shown in Equation 1 and 2, large capacitor values for the inputs are not

necessary; so the switch-on delay during charging of the input capacitors, can be

minimized. This results in a good low frequency response and good switch-on

behaviour.

Remark: To prevent HF oscillations do not leave the inputs open, connect a capacitor

of at least 1.5 nF across the input pins close to the device.

f

i cut

off

–

()

1

2

π R

i

C

i

×

()

-----------------------------

=

f

i cut

off

–

()

1

2

π 45 10

3

×

220

×

10

9

–

×

()

-----------------------------------------------------------------

16 Hz

==

Numéro de pièce similaire - TDA8942P

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	TDA8941	370Kb / 21P	1.5 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8941P	370Kb / 21P	1.5 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8943	358Kb / 20P	6 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8943SF	358Kb / 20P	6 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8944	580Kb / 21P	2 x 7 W stereo Bridge Tied Load BTL audio amplifier Rev. 02 -14 February 2000

More results

Description similaire - TDA8942P

Fabricant	No de pièce	Fiches technique	Description
NXP Semiconductors	TDA8946J	393Kb / 23P	2 x 15 W stereo Bridge Tied Load BTL audio amplifier Rev. 02 -14 March 2000
	TDA8944J	580Kb / 21P	2 x 7 W stereo Bridge Tied Load BTL audio amplifier Rev. 02 -14 February 2000
	TDA8941P	370Kb / 21P	1.5 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8945S	363Kb / 21P	15 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8943SF	358Kb / 20P	6 W mono Bridge Tied Load BTL audio amplifier Rev. 02 -7 April 2000
	TDA8542AT	207Kb / 20P	2 x 1.5 W BTL audio amplifier 1998 Mar 25
	TDA7057Q	56Kb / 9P	2 x 3 W stereo BTL audio output amplifier May 1992
	TFA9810	148Kb / 29P	Stereo full-bridge audio amplifier 2 x 12 W Rev. 02-30 August 2007
	TFA9815	139Kb / 26P	Stereo full-bridge audio amplifier 2 x 17 W Rev. 01-16 December 2008
	SA58637	164Kb / 22P	2 x 2.2 W BTL audio amplifier Rev. 01-25 February 2008

More results

TDA8942P Fiches technique(PDF) 4 Page - NXP Semiconductors

TDA8942P Fiches technique(HTML) 4 Page - NXP Semiconductors

Numéro de pièce similaire - TDA8942P

Description similaire - TDA8942P

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

Fiches technique Télécharger

Lien URL