PT2390 查看數據表（PDF） - Princeton Technology
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PT2390 Datasheet PDF : 7 Pages
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Princeton Technology Corp.
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Echo IC with Built-in Microphone Amplifier & Output Mixer PT2390
BLOCK DIAGRAM
MIC1_IN 1
MIC1_OUT 2
MIX1_IN 3
ECHO_IN 4
LOUT 5
LIN 6
VOCCON 7
VDD 8
REF 9
AGND 10
DGND 11
CLK_IN 12
LPF1_IN 13
LPF1_OUT 14
_+
REF
REF
+-
28 MIC2_IN
27 MIC2_OUT
_
+
+
REF
REF
_
+
REF
REF
+
REFREF
+
+
_
_
+
REF
REF
½ Vcc
CONTROL
UNIT
REF
A/D
D/A
26 MIX2_IN
25 MIX2_OUT
24 ROUT
23 RIN
22 CC1
21 CC0
20 OP1_IN
19 OP1_OUT
18 OP2_IN
17 OP2_OUT
REF REF
+_
16 LPF2_IN
15 LPF2_OUT
Ref. No. 2390 v1.1
2
Written July 1999
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