APA2177 Просмотр технического описания (PDF) - Anpec Electronics
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APA2177 Datasheet PDF : 22 Pages
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APA2177
Pin Description
TQFN3x3 -16
PIN
W LCSP
9
A1
10
A2
11
A3
13
A4
1
B1
8
B2
12
B3
14
B4
6
C1
5
C2
7
C3
15
C4
4
D1
3
D2
2
D3
16
D4
Nam e
SDN
VDD
LO UT
LIN-
GND
CPP
HPV D D
LIN+
CPN
HPVSS
SG ND
RIN+
HI-Z
G AIN
R O UT
RIN-
I/O/P
I
P
O
I
P
P
P
I
P
P
I
I
I
I
O
I
Func tion De scription
Shutdown mode control pin. A low-level voltage applied on this pin shuts off the
headphone driver.
Sup ply voltag e i nput pin.
Left chan nel output fo r h eadp hone .
Left chan nel aud io si gnal inverting in put pi n.
Grou nd conne ction for circuitry.
Charge p ump flying cap aci to r p ositive conne ction .
Positive power supply fo r h eadp hone amp lifi ers.
Left chan nel aud io si gnal non -inverting in put pi n.
Charge p ump flying cap aci to r n egative co nnection.
Charge p ump output.
Amplifier re fe rence vo lta ge.
Right cha nnel au dio signal no n-inverting i nput p in.
Output imped ance se lect. Set to logic LOW for normal op eration an d lo gic
HIG H for high ou tp ut imped ance.
Gain sel ect. Set to logic LOW fo r a g ain of 0 dB and to HIGH fo r a g ain of 6 dB.
Right cha nnel ou tp ut for head phon e.
Right cha nnel au dio signal in ver ting i nput pin.
Copyright © ANPEC Electronics Corp.
5
Rev. A.3 - Nov., 2017
www.anpec.com.tw
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