AD1990 Analog Devices, AD1990 Datasheet - Page 9

• Manufacturer Part Number: AD1990
• Description: Audio Switching Amplifier
• Manufacturer: Analog Devices

Figure 12. Channel Separation vs. Frequency, Driven Channel Has
Figure 11. Amplifier Gain vs. Frequency, 6 Ω Load, PVDD = 12 V
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Figure 10. IMD for 19 kHz/20 kHz Twin-Tone Stimulus with
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1 W Output Power into 6 Ω Load
100
500 mW Power in Each Tone
100
100
FREQUENCY (Hz)
PGA GAIN = 18dB
PGA GAIN = 12dB
PGA GAIN = 6dB
PGA GAIN = 0dB
FREQUENCY (Hz)
FREQUENCY (Hz)
L CHANNEL IDLE,
R CHANNEL DRIVEN
1k
1k
1k
L CHANNEL DRIVEN,
R CHANNEL IDLE
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10k
10k
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Figure 13. THD vs. Frequency, 1 W Output Power into 4 Ω Load, PVDD = 12 V
Figure 14. THD vs. Frequency, 1 W Output Power into 6 Ω Load, PVDD = 12 V
Figure 15. THD vs. Frequency, 1 W Output Power into 8 Ω Load, PVDD = 12 V
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1
100
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FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
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1k
1k
10k
10k
10k
AD1990
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