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參數(shù)資料
| 型號： | MV5089 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | DTMF GENERATOR |
| 中文描述： | 雙音多頻發(fā)生器 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 91K |
| 代理商： | MV5089 |
MV5089
1
DS3126-2.0 June 1993
MV5089
DTMF GENERATOR
The MV5089 is fabricated using ISO-CMOS high density
technology and offers low power and wide voltage operation.
An inexpensive 3.58MHz TV crystal completes the reference
oscillator. From this frequency are derived 8 different
sinusoidal frequencies which, when appropriately mixed,
provide Dual-Tone Multi-Frequency (DTMF) tones.
Inputs are compatible with a standard 2-of-8 active-low
keyboard and the keyboard entries determine the correct
division of the reference frequency by the row and column
counters.
D-to-A conversion, using R-2R ladder networks, results in
a staircase approximation of a sinewave with low total distortion.
Frequency and amplitude stability over operating voltage
and temperature range are maintained within industry
specifications.
Figure 1: Pin connections - top view
Figure 2: Functional block diagram
APPLICATIONS
DTMF Signalling for
I
Telephone Sets
I
Mobile Radio
I
Remote Control
I
Point-of-Sale and Banking Terminals
I
Process Control
FEATURES
I
Pin-for-Pin Replacement for MK5089
I
Low Standby Power
I
Minimum External Parts Count
I
2.75V to 10V Operatlon
I
2-of-8 Keyboard Input
I
High Accuracy Tones Provided by 3.58MHz Crystal
Oscillator
I
Pin-Selectable Inhibit of Single Tone Generation
TONE OUT
SINGLE TONE INHIBIT
ROW 1
ROW 2
ROW 3
ROW 4
ANY KEY DOWN
COLUMN 4
V
DD
TONE DISABLE
COLUMN 1
COLUMN 2
COLUMN 3
V
SS
OSC IN
OSC OUT
DP16
MP16
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
+
-
V
DD
V
DD
TONE OUT
TONE
DISABLE
ANY KEY
COND/A
COND/A
CSINE
CSINE
V
DD
R
C
R
C
R
C
R
C
1
2
3
4
{
COLUMN INPUTS
V
SS
OSC
IN
OSC
KEYBOARD LOGIC
÷
4
COLUMN
CROW
V
DD
{
1
2
3
KEYBOARD LOGIC
4
ROW INPUTS
R
R
R
R
R
R
R
R
V
DD
V
SS
SINGLE TONE
INHIBIT
V
SS
KEYBOARD LOGIC
V
DD
1/2
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MV5089-DP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| MV5089MP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Tone Telephone Dialer |
| MV5089-MP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| MV5094A | 功能描述:標準LED-通孔 Hi Eff Red Diffused Bipolar RoHS:否 制造商:Vishay Semiconductors 照明顏色:Red 光強度:0.7 mcd 波長/色溫:615 nm 顯示角:45 deg 透鏡顏色/類型:Clear, Non-Diffused 正向電流:70 mA 正向電壓:1.83 V to 3.03 V LED 大小:2 mm 系列: 封裝:Tube |
| MV5094A | 制造商:Fairchild Semiconductor Corporation 功能描述:LED LAMP ROHS COMPLIANT:NO |
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