- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382350 > MS8870 (Electronic Theatre Controls, Inc.) DTMF Receiver PDF資料下載
參數(shù)資料
| 型號： | MS8870 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | DTMF Receiver |
| 中文描述： | 雙音多頻接收器 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 138K |
| 代理商： | MS8870 |
MOSA ELECTRONICS
MS8870
DTMF Receiver
－
2
－
Pin Description
Pin #
1
2
3
Name
IN +
IN -
GS
Description
Non-inverting op-amp input.
Inverting op-amp input.
Gain select. Gives access to output of front end differential amplifier for connection
of feedback resistor.
Reference voltage output, nominally V
DD
/2 is used to bias inputs at mid-rail (see Fig.
2).
Internal connection. Must be tied to Vss.
Internal connection. Must be tied to Vss.
Clock input.
Clock output. A 3.5795 MHz crystal connected between OSC1 and OSC2 completes
the internal oscillator circuit.
Negative power supply input.
3-state output enable (input). Logic high enables the outputs Q1-Q4 Internal pull up.
3-state data output. When enable by TOE, provide the code corresponding to the last
valid tone-pair received (see Fig. 5).
Delayed steering output. Presents a logic high when a received tone-pair has been
registered and the output latch updated; return to logic low when the voltage on St/GT
falls below V
TS
t.
Early steering output. Presents a logic high once the digital algorithm has detected a
valid tone pair (signal condition). Any momentary loss of signal condition will cause
ESt to return to a logic low.
Steering input/guard time output (bi-directional). A voltage greater than V
TS
t detected
at St causes the device to register the detected tone pair and update the output latch. A
Voltage less than V
TS
t frees the device to accept a new tone pair. The GT output acts
to reset the external steering time-constant; its state is a function of ESt and the
voltage on St.
Positive power supply input.
4
V
REF
5
6
7
8
IC
IC
OSC1
OSC2
9
10
Vss
TOE
Q1-Q4
11-14
15
StD
16
ESt
17
St/GT
18
V
DD
Absolute Maximum Ratings
Parameter
Min
Max
Units
1
2
3
4
5
6
Power supply voltage V
DD
-Vss
Voltage on any pin
Current at any pin
Operating temperature
Storage temperature
Package power dissipation
6
V
V
mA
℃
℃
mW
Vss - 0.3
-40
-65
V
DD
+ 0.3
10
+85
+150
1000
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS90727 | SCREW, CAP, HEXAGON HEAD |
| MSA-0635 | Cascadable Silicon Bipolar MMIC? Amplifiers |
| MSA-0636 | Cascadable Silicon Bipolar MMIC? Amplifiers |
| MSA0635 | Cascadable Silicon Bipolar MMIC? Amplifiers |
| MSA1162GT1 | General Purpose Amplifier Transistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MS-8870-040 | 制造商:Micro-Star International 功能描述:G4TI4200-TD 128MB DDR AGP - Bulk |
| MS-8870-090 | 制造商:Micro-Star International 功能描述:G4TI4200-VTD64 64MB AGP - Bulk |
| MS-8872-010 | 制造商:Micro-Star International 功能描述:GEFORCE4 TI4600 128MB AGP - Bulk |
| MS-8872-010 RPL | 制造商:Micro-Star International 功能描述:GEFORCE4 TI4600 128MB AGP - Bulk |
| MS-8876-010 | 制造商:Micro-Star International 功能描述:TV TUNER CARD "TV@NYWHERE - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。