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PDF PT2313 Data sheet ( Hoja de datos )

Número de pieza PT2313
Descripción 4-Channel Audio Processor IC
Fabricantes Princeton Technology Corp 
Logotipo Princeton Technology Corp Logotipo



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No Preview Available ! PT2313 Hoja de datos, Descripción, Manual

PTC Princeton Technology Corp.
4-Channel Audio Processor IC
Tel : 886-2-29162151
Fax : 886-2-29174598
PT2313
Description
PT2313 is an four-channel digital audio processor utilizing CMOS Technology. Volume,
Right/Left Bass and Treble Balance, Front/Rear Fader Processor are incorporated into a single
chip. Loudness Function and Selectable Input Gain are also provided to build a highly effective
electronic audio processor having the highest performance and reliability with the least external
components. All functions are programmable using the Serial Bus. The pin assignments and
application circuit are optimized for easy PCB layout and cost saving advantage for audio
application. PT2313 is housed in a 28-pin DIP/SO Package and is functionally compatible with
TDA7313.
Features
r CMOS Technology
r Least External Components
r Treble and Bass Control
r Loudness Function
r 3 Stereo Inputs with Selectable Input Gain
r Input/Output for External Noise Reduction System/Equalizer
r 4 Independent Speaker Controls for Fader and Balance
r Independent Mute Function
r Volume Control in 1.25 dB/step
r Low Distortion
r Low Noise and DC Stepping
r Controlled by Serial Bus Micro-Processor Interface
Applications
r Car Stereo (Audio)
r Hi-Fi Audio System
PT2313 v 1
Page 1
Written Feb. 1997
http://www.Datasheet4U.com

1 page




PT2313 pdf
PTC Princeton Technology Corp.
Tel : 886-2-29162151
Fax : 886-2-29174598
4-Channel Audio Processor IC
PT2313
Byte Format
Every byte transmitted to the DATA Line consist of 8 bits. Each byte must be followed
by an Acknowledge Bit. The MSB is transmitted first.
Acknowledge
During the Acknowledge Clock Pulse, the master (µP) puts a resistive HIGH level on the
DATA Line. The peripheral (audio processor) that acknowledges has to pull-down
(LOW) the DATA line during the Acknowledge Clock Pulse so that the DATA Line is in
a Stable Low State during this Clock Pulse. Please refer to the diagram below.
The audio processor that has been addressed has to generate an acknowledge after
receiving each byte, otherwise, the DATA Line will remain at the High Level during the
ninth (9th) Clock Pulse. In this case, the master transmitter can generate the STOP
Information in order to abort the transfer.
Transmission without Acknowledge
If you want to avoid the acknowledge detection of the audio processor, a simpler µP
transmission may be used. Wait one clock and do not check the slave acknowledge of
this same clock then send the new data. If you use this approach, there are greater
chances of faulty operation as well as decrease in noise immunity.
Interface Protocol
The interface protocol consists of the following:
A Start Condition
A Chip Address Byte including the PT2313 address. The 8th Bit of the Byte must be
“0”. PT2313 must always acknowledge the end of each transmitted byte.
PT2313 v 1
Page 5
Written Feb. 1997

5 Page





PT2313 arduino
PTC Princeton Technology Corp.
4-Channel Audio Processor IC
Volume
Control
RIV
CRANGE
AVMIN
AVMAX
ASTEP
EA
ET
VDC
Input Resistance
Control Range
Min.
Attenuation
Max.
Attenuation
Step Resolution
Attenuation Set
Error
Tracking Error
DC Steps
Speaker
Attenuators
CRANGE
SSTEP
EA
AMUTE
VDC
Control Range
Step Resolution
Attenuation Set
Error
Output Mute
Attenuation
DC Steps
Bass Control
(1)
Gb
BSTEP
RB
Treble
Control (1)
Gt
TSTEP
Audio
Outputs
VOCL
RL
CL
ROUT
VOUT
Control Range
Step Resolution
Internal
Feedback
Resistance
Control Range
Step Resolution
Clipping Level
Output Load
Resistance
Output Load
Capacitance
Output
Resistance
DC Voltage
Level
AV=0 to -20dB
AV=-20 to –60dB
Adjacent Attenuation Steps
From 0dB to AV max
Adjacent Att. Steps
From 0 to Mute
Max. Boost/Cut
Max. Boost/Cut
d=0.3%
Tel : 886-2-29162151
Fax : 886-2-29174598
PT2313
20
70
-1
70
0.5
-1.25
-3
33
75
0
75
1.25
0
0
0.5
35 37.5
0.5 1.25
80 100
0
1
+ 12 + 14
12
34 44
50 KOhms
80 dB
1 dB
80 dB
1.75 dB
1.25 dB
2 dB
2 dB
3 mV
7.5 mV
40 dB
1.75 dB
1.5 dB
dB
3 mV
10 mV
+ 16 dB
3 dB
58 KOhms
+ 13 + 14 + 15 dB
12
3 dB
2 2.5
2
Vrms
KOhms
10 nF
30 75 120 Ohms
4.2 4.5 4.8 V
PT2313 v 1
Page 11
Written Feb. 1997

11 Page







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