Rainbow Electronics APC5830 - Manual

APLUS INTEGRATED CIRCUITS INC.
APC5830
www.aplusinc.com.tw TEL : 886-2-2782-9266 1
APC5830 DE-COMPRESSION VOICE IC
1. CHIP FEATURES.
z D
UAL OPERATION FREQUENCIES
:
- 32.768 KH Z & 0.5 SECOND TIMER INTERRUPT .
- B UILT - IN PLL CIRCUIT TO GENERATE SYSTEM CLOCK MAX 20MH Z .
z B UILT - IN 2K BYTES (1K*16) RAM.
z A
DDRESS UP TO
8M
BYTE
(4M*16) RAM
OR
ROM
OR
“ROM
AND
RAM”
B UILT - IN 16K BYTE (8K*16) PROGRAM ROM AND 0.5M BYTE (256K*16) DATA ROM
z B
UILT
-
IN DECOMPRESSION ENGINE
T HE VOICE AND MUSIC DE - COMPRESSION RATE IS AS THE FOLLOWS :
- 3.6 KBIT / SEC - 4.8 KBIT / SEC - 6.0 KBIT / SEC - 7.2 KBIT / SEC - 8.4 KBIT / SEC - 9.6 KBIT / SEC -
10.8 KBIT / 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
18.96 min. 9.6
K BIT
/
SEC
7.11 min.
4.8 K BIT / SEC 14.22 min. 10.8 K BIT / SEC 6.32 min.
6.0
K BIT
/
SEC
11.38 min. 12.0
K BIT
/
SEC
5.69 min.
7.2
K BIT
/
SEC
9.48 min. 13.2
K BIT
/
SEC
5.17 min.
8.4 K BIT / SEC 8.13 min. 14.4 K BIT / SEC 4.74 min.
T
HE
MUSIC
DE
-
COMPRESSION RATE IS AS THE FOLLOWS
:
DE
-
COMPRESSION
RATE
VOICE DURATION
DE
-
COMPRESSION
RATE
VOICE DURATION
10
K BIT
/
SEC 6.83 min. 18
K BIT
/
SEC 3.79 min.
12
K BIT
/
SEC
5.69 min. 20
K BIT
/
SEC
3.41 min.
14 K BIT / SEC 4.88 min. 22 K BIT / SEC 3.10 min.
16
K BIT
/
SEC 4.27 min. 24
K BIT
/
SEC 2.84 min.
z B
UILT
-
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 .