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參數(shù)資料
| 型號： | NTE1690 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Telephone DTMF Dialer |
| 中文描述： | 集成電路電話雙音多頻撥號器 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 31K |
| 代理商： | NTE1690 |
NTE1690
Integrated Circuit
Telephone DTMF Dialer
Description:
The NTE1690 is a low threshold voltage, field–implanted, metal gate CMOS integrated circuit in a
16–Lead DIP type package. This device interfaces directly to a standard telephone keypad and gen-
erates all dual tone multi–frequency pairs required in tone dialing systems. The tone synthesizers
are locked to an on–chip reference oscillator using an inexpensive 3.579545MHz crystal for high tone
accuracy. The crystal and an output load resistor are the only external components required for tone
generation. A MUTE OUT logic signal, which changes state when any key is depressed is also pro-
vided.
Features:
3V to 10V Operation When Generating Tones
2V Operation of Keyscan and MUTE Logic
Static Sensing of Key Closures or Logic Inputs
On–Chip 3.579545MHz Crystal–Controlled Oscillator
Output Amplitudes Proportional to Supply Voltage
High Group Pre–Emphasis
Low Harmonic Distortion
Open Emitter–Follower Low–Impedance Output
SINGLE TONE INHIBIT Pin
Absolute Maximum Ratings:
Supply Voltage (V
DD
– V
SS)
Maximum Voltage at Any Pin
Power Dissipation, P
D
Operating Temperature Range, T
opr
Storage Temperature Range, T
stg
15V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
DD
+0.3V to V
SS
–0.3V
500mW
–30
°
to +60
°
C
–55
°
to +150
°
C
Electrical Characteristics:
(–30
°
C
<
T
A
<
+60
°
C, 3V < V
DD
< 10V unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Minimum Supply Voltage for Keysense and
MUTE Logic Functions
–
–
2
V
Operating Current, Idle
R
L
= 10k
V
O
= 5V
–
20
–
μ
A
mA
Operating Current, Generating Tones
–
2
–
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| NTE1691 | 制造商:NTE 制造商全稱:NTE Electronics 功能描述:Integrated Circuit Telephone Pulse Dialer w/Redial |
| NTE1692 | 制造商:NTE 制造商全稱:NTE Electronics 功能描述:Integrated Circuit Telephone Pulse Dialer w/Redial |
| NTE1693 | 制造商:NTE Electronics 功能描述:IC-TELEPHONE DIALER(CMOS) 制造商:NTE Electronics 功能描述:Telephone Pulse Dialer 16-Pin PDIP |
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| NTE16C62AJW | 制造商:NTE Electronics 功能描述:PIC-MCU 8-BIT CMOS UV EPROM |
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