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HEF4047BT Datasheet(PDF) 4 Page - NXP Semiconductors

Part # HEF4047BT
Description  2 x 25 W class-D power amplifier
Download  36 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

HEF4047BT Datasheet(HTML) 4 Page - NXP Semiconductors

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2003 Mar 20
4
Philips Semiconductors
Objective specification
2
× 25 W class-D power amplifier
TDA8922
6
BLOCK DIAGRAM
handbook, full pagewidth
MGU994
OUT1
VSSP1
VDDP2
DRIVER
HIGH
OUT2
BOOT2
TDA8922TH
(TDA8922J)
BOOT1
DRIVER
LOW
RELEASE1
SWITCH1
ENABLE1
CONTROL
AND
HANDSHAKE
PWM
MODULATOR
MANAGER
OSCILLATOR
TEMPERATURE SENSOR
CURRENT PROTECTION
STABI
MODE
INPUT
STAGE
mute
9 (3)
8 (2)
IN1
−
IN1
+
22 (15)
21 (14)
20 (13)
17 (11)
16 (10)
15 (9)
VSSP2
VSSP1
DRIVER
HIGH
DRIVER
LOW
RELEASE2
SWITCH2
ENABLE2
CONTROL
AND
HANDSHAKE
PWM
MODULATOR
11 (5)
SGND1
7 (1)
OSC
2 (19)
SGND2
6 (23)
MODE
INPUT
STAGE
mute
5 (22)
4 (21)
IN2
−
IN2
+
19 (-)
24 (17)
VSSD
HW (1)
1 (18)
VSSA2
12 (6)
VSSA1
3 (20)
VDDA2
10 (4)
VDDA1
23 (16)
13 (7)
18 (12)
14 (8)
VDDP2
PROT
STABI
VDDP1
Fig.1 Block diagram.
(1) Pin HW (TDA8922TH only) should be connected to pin VSSD in the application.
Pin numbers in parenthesis refer to the TDA8922J.


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