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參數(shù)資料
| 型號(hào)： | NTE1649 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit Telephone Tone Ringer |
| 中文描述： | 集成電路電話鈴聲鈴聲 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大小： | 27K |
| 代理商： | NTE1649 |
NTE1648 and NTE1649
Integrated Circuit
Telephone Tone Ringer
Description:
The NTE1648 and NTE1649 are bipolar integrated circuits in an 8–Lead DIP type package designed
for telephone bell replacement.
Functions:
Two Oscillators
Output Amplifier
Power Supply Control Circuit
Features:
Designed for Telephone Bell Replacement
Low Current Drain
Small Size 8–Lead MINIDIP Package
Adjustable 2–Frequency Tone
Adjustable Warbling Rate
Built–in Hysteresis Prevents False Triggering and Rotary Dial “CHIRPS”
Extension Tone Ringer Modules
Alarms or Other Altering Devices
External Triggering or Ringer Disable (NTE1648)
Adjustable for Reduced Supply Initiation Current (NTE1649)
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30V
400mW
–45
°
to +65
°
C
–65
°
to +150
°
C
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