pt2390 Princeton Technology Corp., pt2390 Datasheet - Page 2

• Manufacturer Part Number: pt2390
• Description: Echo Ic With Built-in Microphone Amplifier & Output Mixer
• Manufacturer: Princeton Technology Corp.

Echo IC with Built-in Microphone Amplifier & Output Mixer
BLOCK DIAGRAM
Ref. No. 2390 v1.1
LPF1_OUT
MIC1_OUT
VOCCON
LPF1_IN
MIC1_IN
MIX1_IN
ECHO_IN
AGND
DGND
CLK_IN
LOUT
VDD
REF
LIN
Princeton Technology Corp.
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7
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9
REF
REF
REF
½ Vcc
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REF
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REF
2
REF
CONTROL
+ +
REF
UNIT
+
REF
REF
REF
REF
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+
+
_
Written July 1999
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REF
REF
A/D
D/A
URL: http://www.princeton.com.tw
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Fax: [phone]
Tel: [phone]
MIX2_IN
MIC2_IN
MIC2_OUT
ROUT
RIN
CC1
CC0
OP1_IN
OP1_OUT
OP2_IN
OP2_OUT
LPF2_IN
LPF2_OUT
MIX2_OUT
PT2390