TDA8950
NXP Semiconductors
2 × 150 W class-D power amplifier
6. Block diagram
VDDA
3 (20)
n.c.
10 (4)
STABI PROT
18 (12) 13 (7)
VDDP2
23 (16)
VDDP1
14 (8)
15 (9)
BOOT1
OUT1
9 (3)
8 (2)
IN1M
IN1P
DRIVER
HIGH
PWM
MODULATOR
INPUT
STAGE
SWITCH1
CONTROL
AND
16 (10)
HANDSHAKE
DRIVER
LOW
mute
11 (5)
7 (1)
n.c.
OSC
STABI
V
V
SSP1
TDA8950TH
(TDA8950J)
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTION
OSCILLATOR
MANAGER
6 (23)
DDP2
22 (15)
MODE
MODE
mute
BOOT2
OUT2
2 (19)
SGND
DRIVER
HIGH
CONTROL
AND
21 (14)
5 (22)
4 (21)
SWITCH2
IN2P
IN2M
HANDSHAKE
INPUT
STAGE
PWM
DRIVER
LOW
MODULATOR
1 (18)
12 (6)
n.c.
24 (17)
VSSD
19 (-)
n.c.
17 (11)
VSSP1
20 (13)
001aah653
VSSA
VSSP2
The pin numbers in parenthesis refer to type number TDA8950J.
Fig 1. Block diagram
TDA8950_1
© NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 01 — 9 September 2008
3 of 39
NXP [ NXP ]
