Owner manual

APLUS INTEGRATED CIRCUITS INC. APC5890
www.aplusinc.com.tw TEL : [phone]
1
APC5890 DE-COMPRESSION VOICE IC
1. CHIP FEATURES.
z DUAL OPERATION FREQUENCIES:
- 32.768 KHZ & 0.5 SECOND TIMER INTERRUPT.
- BUILT-IN PLL CIRCUIT TO GENERATE SYSTEM CLOCK MAX 20MHZ.
z BUILT-IN 2KBYTES(1K*16) RAM.
z ADDRESS UP TO 8MBYTE(4M*16) RAM OR ROM OR “ROM AND RAM”
BUILT-IN 16KBYTE(8K*16) PROGRAM ROM AND 1.5M BYTE(768K*16) DATA ROM
z BUILT-IN DECOMPRESSION ENGINE
THE VOICE DE-COMPRESSION RATE IS AS THE FOLLOWS:
- 3.6KBIT/SEC - 4.8KBIT/SEC - 6.0KBIT/SEC - 7.2KBIT/SEC - 8.4KBIT/SEC - 9.6KBIT/SEC -
10.8KBIT/SEC - 12.0 KBIT/SEC - 13.2 KBIT/SEC - 14.4 KBIT/SEC
DE-COMPRESSION
RATE
VOICE DURATION
DE-COMPRESSION
RATE
VOICE DURATION
3.6 K BIT/SEC 56.89 min. 9.6 K BIT/SEC 21.33 min.
4.8 K BIT/SEC 42.67 min. 10.8 K BIT/SEC 18.96 min.
6.0 K BIT/SEC 34.13 min. 12.0 K BIT/SEC 17.07 min.
7.2 K BIT/SEC 28.44 min. 13.2 K BIT/SEC 15.52 min.
8.4 K BIT/SEC 24.38 min. 14.4 K BIT/SEC 14.22 min.
THE MUSIC DE-COMPRESSION RATE IS AS THE FOLLOWS:
DE-COMPRESSION
RATE
VOICE DURATION
DE-COMPRESSION
RATE
VOICE DURATION
10 K BIT/SEC 20.48 min. 18 K BIT/SEC 11.38 min.
12 K BIT/SEC 17.07 min. 20 K BIT/SEC 10.24 min.
14 K BIT/SEC 14.63 min. 22 K BIT/SEC 9.31 min.
16 K BIT/SEC 12.80 min. 24 K BIT/SEC 8.53 min.
z BUILT-IN 12 BITS D/A, 8 BITS ADC.
z I/O PORTS
16 I/O PINS FOR PORT A.
12 OUTPUT FOR PORT B.
16 I/O PINS FOR PORT C.