D2-24044 Datasheet, PDF (8/20 Pages) Intersil Corporation – Digital Audio Amplifier Power Stage

D2-24044
Pin Description (Continued)
VOLTAGE
PIN NAME
LEVEL
PIN (Note 7) TYPE
(V)
DESCRIPTION
37 HGNDA GND
HV
Output stage A high voltage supply ground. A separate ground pin connection is provided
for each of the output stages. All of the HGND[A:D] pins connect to system “HV” power
ground (also see Note 8).
38 HVDDA
P
HV
Output stage A high voltage supply power. A separate power pin connection is provided
for each of the output stages. All of the HVDD[A:D] pins and the VDDHV pin connect to
the system “HV” power source.
NOTES:
7. Unless otherwise specified all pin names are active high. Those that are active low have an “n” prefix, such as nERRORA.
8. Thermal pad is internally connected to all 4 HGND ground pins (HGNDA, HGNDB, HGNDC, HGNDD). Any connection to the
thermal pad must be made to the common ground for these 4 ground pins.
Typical Performance Characteristics
Full-Bridge Typical Performance Curves
10.00
HVDD = 24.0V,
5.00 _{8Ω LOAD, 1kHz}
2.00
1.00
0.50
0.20
0.10
0.05
0.02
0.01
0.06 0.1 0.2 0.5 1 2
5 10 20
50
POWER (W)
FIGURE 1. THD vs POWER, FULL-BRIDGE
1.000
0.500
P = 25W
0.200
0.100
0.050
P = 7W
0.020
0.010
0.005
P = 1W
P = 14W
0.002 ^{HVDD = 24.0V, 8Ω LOAD,}
AT 1W, 7W, 14W, 25W POWER OUT
0.001
20
50 100 200 500 1k 2k
FREQUENCY (Hz)
5k 10k 20k
FIGURE 2. THD vs FREQUENCY, FULL-BRIDGE
6
5 ^{HVDD = 24.0V,}
8Ω LOAD, 3.5W
4
3
2
1
-0
-1
-2
-3
-4
-5
-6
30 50
100 200 500 1k 2k
FREQUENCY (Hz)
5k 10k
FIGURE 3. FREQUENCY RESPONSE, FULL-BRIDGE
-50
-55 HVDD = 24.0V, 8Ω LOAD,
-60 ^{AT 1kHz, REFERENCE TO 30W}
-65
-70
-75
-80
-85
-90
-95
-100
-105
< -115dB, UN-WEIGHTED
-110
-115
-120
-60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 +0
dBFS
FIGURE 4. NOISE FLOOR, FULL-BRIDGE
8
FN7678.0
September 3, 2010