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