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AD1990 Datasheet(PDF) 3 Page - Analog Devices

Part No. AD1990
Description  Class-D Audio Power Amplifier
Download  16 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD1990 Datasheet(HTML) 3 Page - Analog Devices

 
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Preliminary Technical Data
AD199x
Rev. PrA – 1/20/05 | Page 3 of 16
AD199X—SPECIFICATIONS
TEST CONDITIONS UNLESS OTHERWISE NOTED
Supply Voltages
AVDD
5 V
DVDD
5 V
PVDDX
12 V
Ambient Temperature
25 °C
Load Impedance
6
Clock Frequency
11.2896 MHz
Measurement Bandwidth
20 Hz to 20 KHz
Table 1. Performance of both channels is identical
Parameter
Min
Typ
Max
Units
Test Conditions/Comments
OUTPUT POWER (PO)
AD1990
AD1992
AD1994
AD1996
4
5
8
10
16
25
25
40
W
W
W
W
W
W
W
W
RL = 6
Ω, PVDD = 20 V, 1 kHz (FTC)
@ <0.01% THD+N
@ 10% THD+N (FTC)
@ <0.01% THD+N
@ 10% THD+N (FTC)
@ <0.01% THD+N
@ 10% THD+N (FTC)
@ <0.01% THD+N
@ 10% THD+N (FTC)
Efficiency
84
%
fIN =1 kHz, PO = 5 W, RL = 6
RON
per High Side Transistor
0.3
@ 1 A
per Low Side Transistor
0.2
@ 1 A
Maximum Current Through OUTx
4
A
Thermal Warning Active
135
°C
Die temperature
Thermal Shutdown Active
150
°C
Die temperature
Overcurrent Shutdown Active
4
A
Nominal Input Level
1.0
VRMS
PGA gain = 0 dB
Modulation Factor
90
%
PERFORMANCE SPECIFICATIONS
Total Harmonic Distortion (THD+N)
0.005
%
PGA = 0 dB, PO = 5 W
0.007
%
PGA = 6 dB, PO = 5 W
0.01
%
PGA = 12 dB, PO = 5 W
0.02
%
PGA = 18 dB, PO = 5 W
Signal/Noise Ratio (SNR)
102
dB
Dynamic Range (DNR)
102
dB
-60 dB Input
Crosstalk
Power supply rejection (PSRR)
60
45
-100
dB
dB
dB
Measured channel input = 0 VRMS,
other channel = 1 kHz at 5W
20 Hz - 1 kHz
20 Hz – 20 kHz
DC SPECIFICATIONS
Input Impedance
20
k
AINL and AINR analog inputs
Output DC Offset Voltage
±10
mV


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