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TDA8922TH Fiches technique(PDF) 3 Page - NXP Semiconductors

No de pièce TDA8922TH
Description  2 x 25 W class-D power amplifier
Download  36 Pages
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Fabricant  PHILIPS [NXP Semiconductors]
Site Internet  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8922TH Fiches technique(HTML) 3 Page - NXP Semiconductors

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2003 Mar 20
3
Philips Semiconductors
Objective specification
2
× 25 W class-D power amplifier
TDA8922
1
FEATURES
• High efficiency (∼90%)
• Operating supply voltage from ±12.5 to ±30 V
• Very low quiescent current
• Low distortion
• Usable as a stereo Single-Ended (SE) amplifier or as a
mono amplifier in Bridge-Tied Load (BTL)
• Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in
Bridge-Tied Load (BTL)
• High output power
• Good ripple rejection
• Internal switching frequency can be overruled by an
external clock
• No switch-on or switch-off plop noise
• Short-circuit proof across load and to supply lines
• Electrostatic discharge protection
• Thermally protected.
2
APPLICATIONS
• Television sets
• Home-sound sets
• Multimedia systems
• All mains fed audio systems
• Car audio (boosters).
3
GENERAL DESCRIPTION
The TDA8922 is a high efficiency class-D audio power
amplifier with very low dissipation. The typical output
power is 2
× 25 W.
The device is available in the HSOP24 power package
with a small internal heatsink and in the DBS23P
through-hole power package. Depending on the supply
voltage and load conditions, a very small or even no
external heatsink is required. The amplifier operates over
a wide supply voltage range from
±12.5 to ±30 V and
consumes a very low quiescent current.
4
QUICK REFERENCE DATA
Note
1. See Section 16.5.
5
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
General; VP = ±20 V
VP
supply voltage
±12.5 ±20
±30
V
Iq(tot)
total quiescent supply
current
no load connected
55
75
mA
η
efficiency
Po = 25 W; SE: RL =2 × 8 Ω; fi = 1 kHz
90
%
Stereo single-ended configuration
Po
output power
RL =8 Ω; THD = 10%; VP = ±20 V; note 1
22
25
W
RL =4 Ω; THD = 10%; VP = ±15 V; note 1
22
25
W
Mono bridge-tied load configuration
Po
output power
RL =8 Ω; THD = 10%; VP = ±15 V; note 1
46
50
W
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8922TH
HSOP24
plastic, heatsink small outline package; 24 leads;
low stand-off height
SOT566-3
TDA8922J
DBS23P
plastic DIL-bent-SIL power package; 23 leads
(straight lead length 3.2 mm)
SOT411-1


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