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LC83025E

Features: • Applications- Pitch shift The LC83025E can shift the music pitch or the microphone pitch by ±15 steps in 1/4 interval steps, or ±1 octave in scale tone steps according to command data sent from the microcontroller. Furthermore, the pitch can be changed up to ±1 octave in arbitrar...

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SeekIC No. : 004392281 Detail

LC83025E: Features: • Applications- Pitch shift The LC83025E can shift the music pitch or the microphone pitch by ±15 steps in 1/4 interval steps, or ±1 octave in scale tone steps according to command d...

LC83025E Data Sheet

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Part Number:
LC83025E
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Applications
- Pitch shift The LC83025E can shift the music pitch or the microphone pitch by ±15 steps in 1/4 interval steps, or ±1 octave in scale tone steps according to command data sent from the microcontroller. Furthermore, the pitch can be changed up to ±1 octave in arbitrary steps by setting internal coefficients.
- Microphone echo The LC83025E implements echo processing for the signal input from the microphone A/D converter. The amount of echo, the delay time and other parameters can be changed by setting coefficients.
- Voice mute The LC83025E implements processing that removes monaural signal components included in the music signal. This allows CDs with vocals to be used as karaoke CDs. Command data is used to turn the voice mute function on or off.
- Simple surround The LC83025E implements a simple surround function by adding delayed components to the music signal. The LC83025E includes six sets of simple surround coefficients as built-in preset data. These values can be switched by sending command data. Applications can implement their own original surround effects by setting the coefficients. However, the algorithm itself is fixed.
- Flexible input mixing The LC83025E supports hybrid mixing of digital and analog left and right channel song inputs, and thus can handle a wide range of disk processing configurations.
• Audio inputs and outputs
- Inputs: Digital - One system (stereo) A/D converter - Three channels
- Outputs: Digital - One system (stereo) D/A converter - Two channels
- A/D converter Second order Æ` modulation - Three channels
- D/A converter 4* oversampling digital filters plus second order noise shaper plus 5-bit PWM system - Two channels
• Master clock: 768 fs
• External memory: Up to two 256K (64K* 4-bit) DRAMs can be used
• Microcontroller input: Synchronous 8-bit serial data
• Supply voltage: 5 V single-voltage
• Package: QFP80E


Pinout

Connection Diagram


Specifications

Parameter
Symbol
 Conditions
Ratings
Unit
Note
Maximum supply voltage
VDD max
  
0.3 to +7.0
V
Output voltage
VO1
 OSC2 output
Allowed up to the oscillator voltage.
V
VO2
 Pins other than OSC2
0.3 to VDD + 0.3
V
Input voltage
VIN
  
0.3 to VDD + 0.3
V
Peak output current
IOP1
 Audio interface, external RAM interface
2 to +4
mA
1
IOP2
 Microcontroller interface, P3, P4
2 to +10
mA
2
Average output current
IOA1
 Audio interface, external RAM interface: per pin
2 to +4
mA
1
IOA2
 Microcontroller interface, P3, P4: per pin
2 to +10
mA
2
IOA1
 Total for FS384O, LRCKO, BCKO, and ASO
2 to +10
mA
IOA2
 Total for DWRT, DREAD, RAS, CAS, A3 to A8
and D0 to D7
30 to +30
mA
IOA3
 Total for A0 to A2, SIAK, P3 and P4
10 to +10
mA
Allowable power dissipation
Pd max
 Ta = 30 to +70°C
700
mW
Operating temperature
Topr
  
30 to +70
°C
Storage temperature
Tstg
  
40 to +125
°C



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