![](/html/Princeton/73110/page3.png)
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
PIN CONFIGURATION
MIC1_IN
MIC1_OUT
MIX1_IN
ECHO_IN
LOUT
LIN
VOCCON
VDD
REF
AGND
DGND
CLK_IN
LPF1_IN
LPF1_OUT
1
28
MIC2_IN
2
27
MIC2_OUT
3
26
MIX2_IN
4
25
MIX2_OUT
5
24
ROUT
6
23
RIN
7
22
CC1
8
21
CC0
9
20
OP1_IN
10
19
OP1_OUT
11
18
OP2_IN
12
17
OP2_OUT
13
16
LPF2_IN
14
15
LPF2_OUT
PT2390
Ref. No. 2390 v1.1
3
Written July 1999