- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378017 > MSM6882-3 (OKI SEMICONDUCTOR CO., LTD.) 2400/1200 bps Single Chip MSK Modem PDF資料下載
參數(shù)資料
| 型號： | MSM6882-3 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 2400/1200 bps Single Chip MSK Modem |
| 中文描述： | 一千二百分之二千四基點單芯片MSK調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 5/15頁 |
| 文件大小： | 119K |
| 代理商： | MSM6882-3 |
Semiconductor
MSM6882-3/6882-5
5/15
Baud rate selection.
Master Clock
(MHz)
MCS
BR
Bit Rate
(bps)
Carrier Freq. (Hz)
Mark
1200
1200
1200
600
600
Space
2400
1800
1800
1200
900
1
1
0
1
1
1
0
0
1
0
2400
1200
1200
1200
600
7.3728
3.6864
3.6864
BR
Built-in analog signal ground.
The DC voltage is approximately half of V
DD
, so the analog interfaces signals of AI, AO, and TI
with peripheral circuits which must be implemented by AC-coupling. To make this voltage
source impedance lower and ensure the device performance of this device, more than 0.1
m
F
bypass capacitors should be connected from SG to GND and from SG to V
DD
.
SG
Ground. (0 V)
GND
Voice signal input.
The signal input to this pin can be sent out to AO through the transmit LPF, the characteristics
of which, gives the splatter filter for voice band signal.
When this function is used, digital "0" must be input to ME.
TI is biased to SG through internal resistor.
Transmit analog signal output.
The data put on ME and
FT
can set the status of AO as follows.
TI
AO
–
+
Transmit LPF
Receive BPF
SG
The state when
FT
and ME = "0" is shown above. When the input digital data on
FT
changes to
"1" from "0", AO remains to be connected to SG during about 2 ms and after that, and AO is
switched to transmit LPF.
This delay time prevents AO from outputting meaningless signal during transient time from
power down to on of LPF.
AO
FT
"1"
"1"
"0"
"0"
ME
"1"
"0"
"1"
"0"
Transmit LPF
State of AO
MSK Signal
Voice Signal
Power On
The Output of Receive BPF
No-signal (SG level)
Power Down
TI
SD
Modu-
lator
Power down
AI
Name
Description
相關PDF資料 |
PDF描述 |
|---|---|
| MSM6882-5 | 2400/1200 bps Single Chip MSK Modem |
| MSM6889 | Multi-Function Telecommunication LSI(多功能遠程通信收發(fā)LSI) |
| MSM74017 | MODULATOR/DEMODULATOR FOR MODEM FUNCTION IN THE CELLULAR MOBILE PHONE |
| MSM7502 | Multi-Function PCM CODEC |
| MSM7508 | Single Rail CODEC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MSM6882-5 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:2400/1200 bps Single Chip MSK Modem |
| MSM6882-5 RS | 制造商:ROHM Semiconductor 功能描述: |
| MSM6882-5GS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM6882-5RS | 制造商:OK International 功能描述: |
| MSM6889 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multi-Function Telecommunication LSI |
發(fā)布緊急采購，3分鐘左右您將得到回復。