SM6453AB_02 Datasheet, PDF (3/19 Pages) Nippon Precision Circuits Inc – 3-wire Serial Data Volume Control for Headphone Amplifier IC

BLOCK DIAGRAM
SM6453AB
32
31
30
29
28
27
26
1
MLEN
2
MCK
BST
AGC
25
BSTO
24
BEEPLO
3
MDT
+12dB
HPA
23
LOUT
4
RSTN
5
MUTEN
6
PDN
7
BEEPI
EVR(0 to -80dB)
EVR
AMP
EVR(0 to -80dB)
EVR
AMP
22
AVSS2
+12dB
HPA
21
AVDD2
20
AVDD3
19
AVSS3
8
VREF1
VREF1
BEEP
18
ROUT
9
VREF2
VREF2
Selector
17
BEEPRO
10
11
12
13
14
15
16
NIPPON PRECISION CIRCUITS INC.—3