SNC82168 Datasheet, PDF (5/13 Pages) SONiX Technology Company – 12-Channel MIDI/Speech Controller

4 Block Diagram
SNC82168
12-Channel MIDI/Speech Controller
ROM
Program/Speech/Melody/Instrument waveform
512K 12 bits
Address Pointers/ STACK
SRAM (384 bytes)
OSC
Timing
Generator
Sampling
Rate Counter
Voice
Synthesizer
IO0
IO1
Timer
ALU
10bit D/A
Direct Drive
IO2
5 FUNCTION DESCRIPTION
5.1. Oscillator
CKSEL (Clock Select) input pin of the SNC82168 selects between crystal
oscillator/ceramic resonator or RC type oscillators as system clock.
VDD
CKS E L
XIN
20pf
CKS EL
XIN
NC
GND
XO UT
1 6 .3 8 4 Mh z
20pf
Crys ta l / Re s ona tor
XO UT
NC
RC Os cilla tor
Notice: For RC Oscillator, Keep XOUT and XIN as “No Connect”.
Ver: 1.5
5
Sep. 8, 2006