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參數(shù)資料
| 型號： | TK10651M |
| 廠商： | TOKO INC |
| 元件分類： | 模擬運(yùn)算功能 |
| 英文描述： | LOW VOLTAGE COMPANDOR |
| 中文描述： | COMPANDER, PDSO20 |
| 封裝： | SSOP-20 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 124K |
| 代理商： | TK10651M |
January 2000 TOKO, Inc.
Page 9
TK10651
COMPRESSOR
By placing the data input pin following the compressor
circuit, a data signal can be transmitted without being
compressed. Audio from the microphone can be connected
directly to the IC, because it passes through the built-in
microphone amplifier (the gain is adjustable). Since there is
a built-in limiter to prevent overmodulation, it is not neces-
sary to add an external Instantaneous Deviation Control
(IDC) circuit; furthermore, a Low Pass Filter (LPF) up to the
third order can be constructed using the buffer amplifier.
When a data signal is being transmitted, the unneeded
audio can be cut by engaging the mute switch.
EXPANDER
A wide range of applications are made possible because all
of the input amplifier pins are accessible. A LPF of up to the
third order can be constructed at the input, and with an
external resistor, it can be used as an amplifier. If the data
out pin is used for the output, a data signal can be extracted
without passing through the expander. During data trans-
mission, the audio signal system can be inhibited by using
the mute switch.
APPLICATION INFORMATION
COMPRESSOR MICROPHONE AMPLIFIER
The input pin connects to the reference voltage through a
100 k
bias resistor, therefore external bias is not neces-
sary. The microphone amplifier gain can be adjusted by
connecting an external resistor to NF pin 7. The gain is
highest when no resistor is added, and the standard input
level is 3 mV. When an external resistor of 9.1 k
is added,
the standard input level is about a 10 mV; when the external
resistor value is 68 k
, the standard input level is 30 mV.
The input can accommodate a variety of microphones by
adjusting the gain to match the microphone's output volt-
age.
The user should set the gain and input level so that the
output level at pin 3 is normally 300 mV (standard level).
8
+
-
51 k
3.3 k
7
COMP IN
COMP NF
100 k
V
REF
~3 mV
8
+
-
7
7
51 k
3.3 k
9.1 k
COMP IN
100 k
V
REF
COMP NF
~10 mV
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK10651MTL | LOW VOLTAGE COMPANDOR |
| TK10930 | AM/FM IF DETECTOR |
| TK10930VCTL | AM/FM IF DETECTOR |
| TK10930VCTR | AM/FM IF DETECTOR |
| TK10930VCTX | AM/FM IF DETECTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK10651MTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW VOLTAGE COMPANDOR |
| TK10651MTL/10651 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:LOW VOLTAGE COMPANDOR |
| TK10690MTL-G | 制造商:Asahi Kasei Microsystems Co Ltd 功能描述:Compressor,Expander,Excellent Frequency Response BW Equal 20KHz |
| TK10930 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:AM/FM IF DETECTOR |
| TK10930VCBX | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:AM/FM IF DETECTOR |
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