TDA8945S Datasheet, PDF (3/21 Pages) NXP Semiconductors – 15 W mono Bridge Tied Load BTL audio amplifier

Philips Semiconductors
7. Pinning information
7.1 Pinning
TDA8945S
15 W mono BTL audio amplifier
handbook, halfpage
OUT− 1
VCC 2
OUT+ 3
IN+ 4
IN− 5 TDA8945S
SVR 6
MODE 7
GND 8
n.c. 9
MBK937
Fig 2. Pin configuration.
7.2 Pin description
Table 3: Pin description
Symbol
Pin
OUT−
1
V_CC
2
OUT+
3
IN+
4
IN−
5
SVR
6
MODE
7
GND
8
n.c.
9
Description
negative loudspeaker terminal
supply voltage
positive loudspeaker terminal
positive input
negative input
half supply voltage decoupling (ripple rejection)
mode selection input (standby, mute, operating)
ground
not connected
8. Functional description
The TDA8945S is a mono BTL audio power amplifier capable of delivering 15 W
output power to an 8 Ω load at THD = 10%, using an 18 V power supply and an
external heatsink. The voltage gain is fixed at 32 dB.
With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’
and to ‘operating’ mode.
The TDA8945S outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.
9397 750 06866
Product specification
Rev. 02 — 7 April 2000
© Philips Electronics N.V. 2000. All rights reserved.
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