PT2390-S 查看數據表（PDF） - Princeton Technology
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PT2390-S 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
PIN DESCRIPTION
Pin Name
MIC1_IN
MIC2_OUT
MIX1_IN
ECHO_IN
LOUT
LIN
VOCCON
VDD
REF
AGND
DGND
CLK_IN
LPF1_IN
LPF1_OUT
LPF2_IN
LPF2_OUT
OP2_OUT
OP2_IN
OP1_OUT
OP1_IN
CC0
CC1
RIN
ROUT
MIX2_OUT
MIX2_IN
MIC2_OUT
MIC2_IN
Ref. No. 2390 v1.1
I/O
I
O
I
I
O
I
I
-
-
-
-
I
I
O
I
O
O
I
O
I
-
-
I
O
O
I
O
I
Description
Microphone 1 Amplifier Input
Microphone 1 Amplifier Output
Mixer 1 Input
Echo Input
Left Channel Output
Left Channel Input
Auto-Vocal Changer Control Terminal
When this pin is pulled "HIGH" (VDD), RIN
is connected to ROUT and LIN is connected
to LOUT.
When this pin is pulled "LOW" (GND), LIN
is connected to ROUT and LOUT.
Power Supply
Reference Voltage
Connects to 47 µf to GND
Analog Ground
Digital Ground
System Clock Input
Low-Pass Filter 1 Input
Low-Pass Filter 1 Output
Low-Pass Filter 2 Input
Low-Pass Filter 2 Output
OP Amplifier 2 Output
OP Amplifier 2 Input
OP Amplifier 1 Output
OP Amplifier 1 Input
Current Control 0
Current Control 1
Right Channel Input
Right Channel Output
Mixer 2 Output
Mixer 2 Input
Microphone 2 Amplifier Output
Microphone 2 Amplifier Input
4
Written July 1999
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
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