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PDF SNC88340 Data sheet ( Hoja de datos )
| Número de pieza | SNC88340 | |
| Descripción | 24-Channel MIDI/Speech Controller | |
| Fabricantes | SONiX | |
| Logotipo |  |
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SNC88340
24-Channel MIDI/Speech Controller
================== CONTENTS =================
1 INTRODUCTION......................................................................................................................... 3
2 FEATURES ...................................................................................................................................3
3 PIN ASSIGNMENT ...................................................................................................................... 4
4 BLOCK DIAGRAM ..................................................................................................................... 5
5 FUNCTION DESCRIPTION....................................................................................................... 5
5.1.
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
5.8.
5.9.
5.10.
5.11.
OSCILLATOR................................................................................................................................ 5
ROM........................................................................................................................................... 6
RAM........................................................................................................................................... 6
POWER DOWN MODE .................................................................................................................. 6
IR FUNCTION............................................................................................................................... 7
I/O PORTS ................................................................................................................................... 7
SAMPLING RATE COUNTERS........................................................................................................ 8
AUTO REPETITION ....................................................................................................................... 8
VOICE SYNTHESIZER ................................................................................................................... 8
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MUSIC SYNTHESIZER................................................................................................................... 8
DAC ........................................................................................................................................... 9
6 APPLICATION CIRCUIT......................................................................................................... 10
7 ABSOLUTE MAXIMUM RATING.......................................................................................... 13
8 ELECTRICAL CHARACTERISTICS ..................................................................................... 13
Ver: 1.6
1 Sep. 8, 2006
1 page  
4 Block Diagram
SNC88340
24-Channel MIDI/Speech Controller
ROM
Program/Speech/Melody/Instrument waveform
1M 12 bits
Address Pointers/ STACK
SRAM (640 bytes)
OSC
Timing
Generator
Music
Synthesizer
IO0
Sampling
Rate Counter
Voice
Synthesizer
IO1
Timer
ALU
10bit D/A X 2
Direct Drive
IO2
5 FUNCTION DESCRIPTION
5.1. Oscillator
CKSEL (Clock Select) input pin of the SNC88340 selects between crystal
oscillator/ceramic resonator or RC type oscillators as system clock.
VDD
CKSEL
GND
16.384Mhz
20pf
Crystal / Resonator
CKSEL
XIN
XOUT
RC Oscillator
NC
NC
Notice: For RC Oscillator, Keep XOUT and XIN as “No Connect”.
Ver: 1.6
5 Sep. 8, 2006
5 Page 
SNC88340
24-Channel MIDI/Speech Controller
Power Supply: 4.5V
System Clock: Rosc with calibration or RTC function
Low Clock: R-Type
Voice output: DA output With Stereo
VDD
10
VDD
VDD
10 0.1uF
51K
0.1uF
10uF
VDD
VDD
91K
200pF
VDD
VDD
1K
1K
VDDVR
GNDVR
SNC88040
CVDD
REGOUT
VDD
VDDPP
RST
XOUT
XIN
LXOUT
LXIN
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
TESTM
CKSEL
VO1
BN0
BP0
VO2
GND
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
P24
P25
P26
P27
GNDPP
4.7uF
VDD
100
Notice: If system clock is ROSC, please leave Xout and Xin as “no connect”.
Ver: 1.6
11 Sep. 8, 2006
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet SNC88340.PDF ] | |
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