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參數(shù)資料
| 型號： | MSM7512B |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 1200 bps Half Duplex FSK Modem - ITU-T V.23 |
| 中文描述： | 1200 bps的半雙工FSK調(diào)制解調(diào)器- ITU - T的.23 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大?。?/td> | 111K |
| 代理商： | MSM7512B |
Semiconductor
MSM7512B
4/12
PIN DESCRIPTION
Note :
I* : Internally pulled-up input pin.
1
2
3
1
3
5
V
DD
AI
AO
—
I
O
+3 V to +5 V Power Supply
Analog receive signal input.
Analog transmit signal output.
External analog signal input.
The signal applied to this pin is transmitted from AO via transmit output
amplifier. When not using this pin, it should be left open.
Ground, 0 V.
3.579545 MHz crystal resonator should be connected to X1 and X2.
When applying external clock 3.579545 MHz to the device, it should be
applied to X2 (not X1) via an AC-coupling capacitor of 100 pF and X1
has to be opened.
3.579545 MHz clock signal output.
Modem receive serial data output.
Digital "1" and "0" correspond to "Mark" and "Space", respectively. When
CD
(Carrier Detect) is off, RD is held at "Mark" state.
FSK Receive signal and answer tone detect.
Digital "0" and "1" represent "Detect" and "Non-detect", respectively.
Modem transmit serial data input.
Digital "1" and "0" correspond to "Mark" and "Space", respectively.
FSK signal and answer tone transmit enable.
When digital "0" is applied to
RS
, transmitting becomes enable.
Chip test input.
TEST
should be open or digital "1".
Operation mode select.
Refer to Table 1.
Analog transmit signal amplitude select.
Digital "1"
–10 dBm Typ. at AO
Digital "0"
–4 dBm Typ. at AO
4
6
EAI
I
5
7
GND
—
6
8
X1
I
7
10
X2
O
8
12
CLK
O
9
13
RD
O
10
15
CD
O
11
17
XD
I*
12
18
RS
I*
13
19
TEST
I*
14
15
20
22
MOD1
MOD2
I*
I*
16
24
AOG
I*
Description
Name
I/O
RS GS-VK
No.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7512BGS-K | 制造商:ROHM Semiconductor 功能描述: |
| MSM7512B-RS | 制造商:ROHM Semiconductor 功能描述: |
| MSM7515 | 功能描述:線性和開關(guān)式電源 75W 15V 5A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
| MSM7524 | 功能描述:線性和開關(guān)式電源 75W 24V 3.1A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風格:Rack 長度: 寬度: 高度: |
| MSM7524GS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:DTMF Transceiver |
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