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參數(shù)資料
| 型號： | NTE788 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit IF System for FM Receiver |
| 中文描述： | 集成電路的調(diào)頻接收機(jī)中頻系統(tǒng) |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 23K |
| 代理商： | NTE788 |
NTE788
Integrated Circuit
IF System for FM Receiver
Description:
The NTE788 is a monolithic integrated circuit in a 16–Lead DIP type package that provides all the
functions of a comprehensive FM–IF system. This device features a three–stage FM–IF amplifier/lim-
iter configuration with level detectors for each stage, a doubly–balanced quadrature FM detector, and
an audio amplifier that features the optional use of a muting (squelch) circuit.
The advanced circuit design of the IF system includes desirable deluxe features such as delayed AGC
for the RF tuner, an AFC drive circuit, and an output signal to drive a tuning meter and/or provide ste-
reo switching logic. In addition, internal power supply regulators maintain a nearly constant current
drain over the voltage supply range of +8.5V to +16V.
Features:
Exceptional limiting sensitivity: 12
μ
V typ. at –3dB point
Low distortion: 0.1% typ. (with double–tuned coil)
Single–coil tuning capability
Improved S + N/N Radio
Externally programmable recovered audio level
Provides specific signal for control of interchannel muting (squelch)
On channel step for search control
Provides programmable AGC voltage for RF amplifier
Internal supply–voltage regulators
Externally programmable “ON” channel step width, and deviation at which muting occurs
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
DC Supply Voltage
Between Pin11 and Pin4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Between Pin11 and Pin14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Current (Out of Pin15)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (Up to T
A
= 85
°
C), P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above T
A
= +85
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 1.32” from case, 10sec max), T
L
16V
16V
2mA
640mW
9.9mW/
°
C
–40
°
to +85
°
C
–65
°
to +150
°
C
+265
°
C
. . . . . . . . . . . . . . . . .
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