SNC88268
24-Channel MIDI/Speech Controller
4 Block Diagram
ROM
Program/Speech/Melody/Instrument waveform
810K
12
bits
Address Pointers/ STACK
Timing
Generator
OSC
Music
Synthesizer
IO0
SRAM (640 bytes)
Timer
ALU
10bit D/A X 2
Direct Drive
IO2
Sampling
Rate Counter
Voice
Synthesizer
IO1
5 FUNCTION DESCRIPTION
5.1. Oscillator
CKSEL (Clock Select) input pin of the SNC88268 selects between crystal
oscillator/ceramic resonator or RC type oscillators as system clock.
VDD
20pf
CKSEL
XIN
XOUT
GND
CKSEL
XIN
NC
NC
16.384Mhz
XOUT
20pf
Crystal / Resonator
RC Oscillator
Notice: For RC Oscillator, Keep XOUT and XIN as “No Connect”.
Ver: 1.6
5
Sep. 8, 2006
SONIX [ SONIX TECHNOLOGY COMPANY ]
