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AD1994_15 Datasheet, PDF (7/24 Pages) Analog Devices – Audio Switching Amplifier | |||
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Pin No.
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
AD1994
Mnemonic
In/Out Description
NFR+
I
Right Channel Negative FeedbackâNoninverting Input.
NFRâ
I
Right Channel Negative FeedbackâInverting Input.
NC
No ConnectionâShould Be Left Floating.
AINR
I
Analog Input for Right Channel.
NC
No ConnectionâShould Be Left Floating.
REF_FILT
O
Filter Pin for Band Gap ReferenceâShould Be Bypassed to AGND.
AGND
Negative Power Supply for Low Power Analog Circuitry.
AVDD
Positive Power Supply for Low Power Analog Circuitry.
MOD_FILT
O
Modulator Filter PinâUsed to Set Time Constant of Modulator Order Reduction Circuit.
NC
No ConnectionâShould Be Left Floating.
AINL
O
Analog Input for Left Channel.
NC
No connectionâShould Be Left Floating.
NFLâ
I
Left Channel Negative FeedbackâInverting Input.
NFL+
I
Left Channel Negative FeedbackâNoninverting Input.
OBSOLETE MONO_EN
I
Mono Mode Enable PinâWhen Pulled Up to Logic High.
Rev. 0 | Page 7 of 24
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