D2-24044 INTERSIL [Intersil Corporation], D2-24044 Datasheet - Page 18

• Manufacturer Part Number: D2-24044
• Description: Digital Audio Amplifier Power Stage
• Manufacturer: INTERSIL [Intersil Corporation]

2.1-Channel Example
This example (Figure 16) uses configuration mode “10”
to provide two independent half-bridge loudspeaker
output channels, plus one full-bridge loudspeaker output.
The PWM controller provides input into all eight PWM
input pins.
nPDN
For Channel 1 Output
For Channel 2 Output
For Channel 3 Output
PWMVDD/+3.3
nOVRT
PWM Inputs From
PWM/System
PWM/System Controller
PWMIN1-LO
PWMIN2-LO
PWMIN3-LO
Controller
PWMIN1-HI
PWMIN2-HI
PWMIN3-HI
nERROR Reporting to
2x Half Bridge Outputs, plus
1x Full Bridge Output
FIGURE 16. 2-CHANNEL HALF BRIDGE PLUS 1-CHANNEL FULL BRIDGE EXAMPLE
Configuration “10”
10k
Channel 2
Channel 3
Channel 1
18
(no connect)
(no connect)
10k
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
nPDN
OCFG1
OCFG0
PWMGND
PWMVDD
nOVRT
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
PWM8
PWMGND2
D2-24044
D2-24044
HGNDD
HGNDA
HGNDB
HVDDB
VDDHV
HGNDC
HVDDD
HVDDA
HVDDC
HSBSC
HSBSD
HSBSA
HSBSB
REG5V
OUTD
OUTA
OUTB
OUTC
IREF
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
GND
+HV
GND
GND
+HV
+HV
GND
+HV
100K
+HV
0.1u
+HV
+HV
Bias
Bias
0.1u
Half Bridge
Half Bridge
Full Bridge
1u
September 3, 2010
Output
Output
Output
Filter
Filter
Filter
Channel 1
Channel 2
Channel 3
FN7678.0