PT2310 데이터 시트보기 (PDF) - Princeton Technology
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PT2310 Datasheet PDF : 16 Pages
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Volume Controller IC
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Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2310
PIN DESCRIPTION
Pin No. Pin Name I/O
Description
1
VSS
- Supply voltage input (-)
2
OUT-L O Left channel output
3
IN-L
I Left channel input
4
LD1-L
O
Left channel volume loudness
tap (1)
5
LD2-L
O
Left channel volume loudness
tap (2)
6
AGND-L - Analog ground
7
CS
- Chip select pin
8
CK
I Clock input
9
DATA
I Data code input
10
STB
I Strobe
11
AGND-R - Analog ground
12
LD2-R
O
Right channel volume
loudness tap (2)
13
LD1-R
O
Right channel volume
loudness tap (1)
Function
-
Volume control circuit:
O UT-L
I N-L
LS1
L D1-L
L D2-L
LS2
AG ND-L
(Loudness On: LS1=On, LS2=Off)
C2、C3、C4 Fixed codes are 0, 1, 1
When CS=1, C1=1
When CS=0, C1=0
(see P.5 description)
-
Attenuation value is defined by the
data code; the data code is
consisting of 13bits.
After the DATA & CK codes were
sent, a high strobe pulse in STB pin
to confirm the data is validity.
Volume control circuit:
O UT-R
I N-R
LS1
L D1-R
14
IN-R
I Right channel input
15
OUT-R O Right channel output
16
VDD
- Supply voltage input (+)
L D2-R
LS2
AG ND-R
(Loudness On: LS1=On, LS2=Off)
-
PT2310 V1.0
-3-
June, 2005
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