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參數(shù)資料
| 型號(hào)： | FX818 |
| 元件分類： | Codec |
| 英文描述： | CTCSS Super Codec |
| 中文描述： | 超級(jí)亞音頻編解碼器 |
| 文件頁(yè)數(shù)： | 22/26頁(yè) |
| 文件大?。?/td> | 676K |
| 代理商： | FX818 |
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CTCSS Signalling Processor
FX818
1997
Consumer Microcircuits Limited
22
D/818/4
Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 4.032MHz
Audio Level 0dB ref = 308mVrms at 1kHz
V
DD
= 3.3V to 5.0V, Tamb = -40°C to +85°C.
Composite Signal = 308mVrms at 1kHz + 75mVrms Noise + 31mVrms Sub-Audio Signal
Noise Bandwidth = 5kHz Band Limited Gaussian
Notes
Min.
Typ.
Max.
Units
DC Parameters
At V
DD
= 3.3V
I
DD
(powersaved, V
DD
= 5.0V)
I
DD
(powersaved, V
DD
= 3.3V)
I
DD
(Tx/Rx Operating V
DD
= 5.0V)
I
DD
(Tx/Rx Operating V
DD
= 3.3V)
1, 2
1, 2
1, 2
1, 2
-
-
-
-
0.6
0.35
3.5
1.6
1.0
0.6
6.0
2.5
mA
mA
mA
mA
"C-BUS" Interface
Input Logic "1"
Input Logic "0"
Input Leakage Current (Logic "1" or "0")
Input Capacitance
Output Logic "1" (I
OH
= 120μA)
Output Logic "0" (I
OL
= 360μA)
"Off" State Leakage Current (Vout = V
DD
)
70%
-
-1.0
-
90%
-
-
-
-
-
-
-
-
-
-
V
DD
V
DD
μA
pF
V
DD
V
DD
μA
30%
1.0
7.5
-
10%
10
6
AC Parameters
CTCSS Decoder
Sensitivity
Response Time
De-Response Time
Frequency Range
(Pure CTCSS Tone)
(Composite Signal)
(Composite Signal)
5
-
-
-
-26.0
140
145
-
-
-
-
dB
ms
ms
Hz
60
253
CTCSS Detector - Fast Detect
Sensitivity
Response Time
Frequency Range
(Pure CTCSS Tone)
(Composite Signal)
5
-
-
-26.0
56.0
-
-
dB
ms
Hz
60
253
CTCSS Detector - Fast Predictive
Sensitivity
Response Time
Frequency Range
Decode Bandwidth
(Pure CTCSS Tone)
(Composite Signal)
5
7
-
-
-26.0
37.0
-
40
-
-
dB
ms
Hz
Hz
60
-
253
-
CTCSS Encoder
Frequency Range
Tone Frequency Resolution
Tone Amplitude Tolerance
Total Harmonic Distortion
60
-
-1.0
-
-
-
0
253
0.3
+1.0
-
Hz
%
dB
%
1
9
2.0
相關(guān)PDF資料 |
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|---|---|
| FX836 | R2000 System Audio Processor |
| FX836DW | Telecommunication IC |
| FX836J | Telecommunication IC |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FX818D2 | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:CTCSS SIGNALLING PROCESSOR |
| FX826 | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:AMPS/TACS System Audio Processor |
| FX826DW | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:AMPS / TACS SYSTEM AUDIO PROCESSOR |
| FX826J | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:AMPS/TACS System Audio Processor |
| FX828 | 制造商:CMLMICRO 制造商全稱:CML Microcircuits 功能描述:CTCSS/DCS/SELCALL Processor |
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