AD1994
Pin No.
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Rev. 0 | Page 7 of 24
Mnemonic
NFR+
NFR
NC
AINR
NC
REF_FILT
AGND
AVDD
MOD_FILT
NC
AINL
NC
NFL
NFL+
MONO_EN
In/Out
I
I
I
O
O
O
I
I
I
Description
Right Channel Negative Feedback—Noninverting Input.
Right Channel Negative Feedback—Inverting Input.
No Connection—Should Be Left Floating.
Analog Input for Right Channel.
No Connection—Should Be Left Floating.
Filter Pin for Band Gap Reference—Should Be Bypassed to AGND.
Negative Power Supply for Low Power Analog Circuitry.
Positive Power Supply for Low Power Analog Circuitry.
Modulator Filter Pin—Used to Set Time Constant of Modulator Order Reduction Circuit.
No Connection—Should Be Left Floating.
Analog Input for Left Channel.
No connection—Should Be Left Floating.
Left Channel Negative Feedback—Inverting Input.
Left Channel Negative Feedback—Noninverting Input.
Mono Mode Enable Pin—When Pulled Up to Logic High.
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