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參數資料
| 型號： | APC5890 |
| 廠商： | Aplus Integrated Circuits Inc. |
| 英文描述： | APC5890 DE-COMPRESSION VOICE IC |
| 中文描述： | APC5890德壓縮語音IC |
| 文件頁數： | 1/10頁 |
| 文件大小： | 252K |
| 代理商： | APC5890 |
APLUS INTEGRATED CIRCUITS INC.
APC5890
APC5890
DE-COMPRESSION VOICE IC
www.aplusinc.com.tw
TEL : 886-2-2782-9266
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
1.5M
BYTE
(768K*16)
DATA
ROM
z
B
UILT
-
IN DECOMPRESSION ENGINE
T
HE VOICE AND MUSIC DE
-
COMPRESSION RATE IS AS THE FOLLOWS
:
- 2.25
KBIT
/
SEC
- 2.7
KBIT
/
SEC
- 3.15
KBIT
/
SEC
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
2.25
K BIT
/
SEC
2.7
K BIT
/
SEC
3.15
K BIT
/
SEC
3.6
K BIT
/
SEC
4.8
K BIT
/
SEC
6.0
K BIT
/
SEC
7.2
K BIT
/
SEC
91 min.
75.85 min.
65.01 min.
56.89 min.
42.67 min.
34.13 min.
28.44 min.
8.4
K BIT
/
SEC
9.6
K BIT
/
SEC
10.8
K BIT
/
SEC
12.0
K BIT
/
SEC
13.2
K BIT
/
SEC
14.4
K BIT
/
SEC
24.38 min.
21.33 min.
18.96 min.
17.07 min.
15.52 min.
14.22 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
.
z
T
WO
16
BITS TIMERS
:
TIMER
_
A AND TIMER
_
B
.
z
W
ATCHDOG TIMER
.
z
S
LEEP MODE
:
CRYSTAL
&
SYSTEM
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