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PDF ADAU1592 Data sheet ( Hoja de datos )
| Número de pieza | ADAU1592 | |
| Descripción | Class-D Audio Power Amplifier | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Class-D Audio Power Amplifier
ADAU1592
FEATURES
GENERAL DESCRIPTION
Integrated stereo modulator and power stage
0.005% THD + N
101 dB dynamic range
PSRR > 65 dB
RDS-ON < 0.3 Ω (per transistor)
Efficiency > 90% (8 Ω)
EMI-optimized modulator
On/off-mute pop-noise suppression
Short-circuit protection
Overtemperature protection
APPLICATIONS
The ADAU1592 is a 2-channel, bridge-tied load (BTL)
switching audio power amplifier with an integrated Σ-Δ
modulator.
The modulator accepts an analog input signal and generates
a switching output to drive speakers directly. A digital,
microcontroller-compatible interface provides control of reset,
mute, and PGA gain as well as output signals for thermal and
overcurrent error conditions. The output stage can operate
from supply voltages ranging from 9 V to 18 V. The analog
modulator and digital logic operate from a 3.3 V supply.
Flat panel televisions
PC audio systems
Mini-components
FUNCTIONAL BLOCK DIAGRAM
PGA0 PGA1
AINL
SLC_TH
AINR
AVDD
VREF
AGND
DVDD
DGND
PGA
SLICER
Σ-Δ
MODULATOR
LEVEL SHIFT
AND DEAD
TIME CONTROL
PGA
PGA0 PGA1
VOLTAGE
REFERENCE
fCLK/2
CLOCK
OSCILLATOR
MODE CONTROL
LOGIC
PVDD
A1 OUTL+
A2 PGND
PVDD
B1 OUTL–
B2 PGND
PVDD
C1 OUTR+
C2 PGND
PVDD
D1 OUTR–
D2 PGND
TEMPERATURE/
OVERCURRENT
PROTECTION
XTI XTO MO/ST STDN MUTE ERR OTW
Figure 1.
ADAU1592
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.
1 page  
ADAU1592
DC SPECIFICATIONS
Table 2.
Parameter
INPUT IMPEDANCE
OUTPUT DC OFFSET VOLTAGE
Min Typ Max Unit Test Conditions/Comments
20 kΩ AINL/AINR
±3 mV
POWER SUPPLIES
Table 3.
Parameter
Min Typ Max Unit Test Conditions/Comments
ANALOG SUPPLY VOLTAGE (AVDD)
3.0 3.3 3.6 V
DIGITAL SUPPLY VOLTAGE (DVDD)
3.0 3.3 3.6 V
POWER TRANSISTOR SUPPLY VOLTAGE (PVDD) 9
15 18
V
POWER-DOWN CURRENT
STDN held low
AVDD
5 60 μA
DVDD
0.1 0.24 mA
PVDD
0.082 0.25
mA
MUTE CURRENT
MUTE held low
AVDD
13 20
mA
DVDD
1.7 3.2
mA
PVDD
5.4 8
mA
OPERATING CURRENT
STDN and MUTE held high, no input
AVDD
13 30
mA
DVDD
2.7 4
mA
PVDD
44 65
mA
DIGITAL I/O
Table 4.
Parameter
INPUT VOLTAGE
Input Voltage High
Input Voltage Low
OUTPUT VOLTAGE
Output Voltage High
Output Voltage Low
LEAKAGE CURRENT ON DIGITAL INPUTS
Min Typ Max Unit Test Conditions/Comments
2V
0.8 V
2 V @ 2 mA
0.4 V
@ 2 mA
10 μA
Rev. A | Page 4 of 24
5 Page 
ADAU1592
0
–10
–20
–30
–40
–50
–60
–70 THD + N
–80
–90
–100
THD
–110
–120
10m
100m
1
OUTPUT POWER (W)
10
Figure 11. THD or THD + N vs. Output Power, 4 Ω, PVDD = 15 V
0
–10
–20
–30
–40
–50
–60
–70 THD + N
–80
–90
–100
THD
–110
–120
10m
100m
1
OUTPUT POWER (W)
10
Figure 12. THD or THD + N vs. Output Power, 6 Ω, PVDD = 15 V
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
10m
THD + N
THD
100m
1
OUTPUT POWER (W)
10
Figure 13. THD or THD + N vs. Output Power, 8 Ω, PVDD = 15 V
30
POWER LIMITED DUE TO PACKAGE DISSIPATION
25 4Ω
20
6Ω
15
8Ω
10
5
0
9 10 11 12 13 14 15 16 17
PVDD (V)
Figure 14. Output Power vs. PVDD @ 0.1% THD + N
18
30
POWER LIMITED DUE TO PACKAGE DISSIPATION 4Ω
25
6Ω
20
8Ω
15
10
5
0
9 10 11 12 13 14 15 16 17
PVDD (V)
Figure 15. Output Power vs. PVDD @ 1% THD + N
18
40
POWER LIMITED DUE TO PACKAGE DISSIPATION
35 4Ω
30
6Ω
25
8Ω
20
15
10
5
0
9 10 11 12 13 14 15 16 17
PVDD (V)
Figure 16. Output Power vs. PVDD @ 10% THD + N
18
Rev. A | Page 10 of 24
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet ADAU1592.PDF ] | |
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