TDA8920B NXP Semiconductors, TDA8920B Datasheet - Page 3

• Manufacturer Part Number: TDA8920B
• Description: The TDA8920B is a high efficiency class-D audio power amplifier with very lowdissipation
• Manufacturer: NXP Semiconductors

Philips Semiconductors
6. Block diagram
TDA8920B_2
Product data sheet
Fig 1. Block diagram
SGND1
SGND2
MODE
IN2M
IN1M
IN2P
IN1P
OSC
Pin numbers in parenthesis refer to the TDA8920BJ.
9 (3)
8 (2)
11 (5)
7 (1)
6 (23)
2 (19)
5 (22)
4 (21)
V
V
DDA2
SSA2
MODE
STAGE
STAGE
3 (20)
1 (18)
INPUT
INPUT
mute
mute
V
V
DDA1
SSA1
OSCILLATOR
10 (4)
12 (6)
MODULATOR
MODULATOR
MANAGER
PWM
PWM
Rev. 02 — 07 November 2005
STABI
18 (12)
STABI
V
SSD
24 (17)
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
PROT
13 (7)
RELEASE1
RELEASE2
SWITCH1
ENABLE1
ENABLE2
SWITCH2
n.c.
19 (-)
HANDSHAKE
HANDSHAKE
CONTROL
CONTROL
AND
AND
2
TDA8920BTH
(TDA8920BJ)
100 W class-D power amplifier
DRIVER
DRIVER
DRIVER
DRIVER
HIGH
HIGH
LOW
LOW
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
V
DDP2
V
SSP1
23 (16)
17 (11)
TDA8920B
V
V
V
V
DDP1
DDP2
SSP1
SSP2
14 (8)
20 (13)
16 (10)
22 (15)
21 (14)
15 (9)
coa023
BOOT1
OUT1
BOOT2
OUT2
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