Block Diagram - Philips TDA8920B Product Data Sheet

Philips Semiconductors

6. Block diagram

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