TDA8947J View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
TDA8947J Datasheet PDF : 24 Pages
| |||
Philips Semiconductors
TDA8947J
4-channel audio amplifier
13. Application information
13.1 Application diagrams
VCC
10
50
100
kΩ
kΩ
kΩ
270 Ω
7.5 V
micro-
controller
1.5
kΩ
BC547
2.2
µF
BC547
220 nF IN1+ 8
Vi
60 kΩ
220 nF IN2+ 6
Vi
60 kΩ
IN3+ 9
470 nF
60 kΩ
Vi
IN4+ 12
60 kΩ
CIV 13
VCC
22 µF
VCC1
3
VCC2
16
100 nF
VCC
1000 µF
1 OUT1+
4 OUT2−
−
+
14 OUT3−
−
+
17 OUT4+
+
RL
− 4Ω
RL
4Ω
470 µF
RL
8Ω
SHORT-CIRCUIT
AND
TEMPERATURE
PROTECTION
SVR 11 0.5VCC
Vref
47
µF
SGND 7
MODE1 10
MODE2
VCC
5
STANDBY ALL
MUTE ALL
ON 1 + 2
MUTE 3 + 4
ON 3 + 4
TDA8947J
2
GND1
15
GND2
mdb017
Fig 12. Typical application diagram without on/off switching plops
Table 11: Amplifier selection by microcontroller
Microcontroller with open-collector output; see Figure 12.
Microcontroller
Channels 1 and 2
LOW
On mode
HIGH
Mute mode
Channels 3 and 4
On mode
Mute mode
9397 750 14938
Product data sheet
Rev. 02 — 16 June 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
15 of 24
Share Link: 