Datasheet > FX818

FX818

更新时间： 2024-01-01 20:02:38

品牌	Logo	应用领域
CMLMICRO		/
页数	文件大小	规格书
26页	672K
描述
CTCSS SIGNALLING PROCESSOR

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中文翻译

获取价格

数据手册

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FX818 数据手册

CTCSS Signalling Processor

FX818

Operating Characteristics

For the following conditions unless otherwise specified:

Xtal Frequency = 4.032MHz

Audio Level 0dB ref = 308mVrms at 1kHz

= 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 = 3.3V

(powersaved, V = 5.0V)

1, 2

0.6

0.35

3.5

1.0

0.6

6.0

2.5

(powersaved, V = 3.3V)

(Tx/Rx Operating V = 5.0V)

(Tx/Rx Operating V = 3.3V)

1.6

"C-BUS" Interface

Input Logic "1"

Input Logic "0"

Input Leakage Current (Logic "1" or "0")

Input Capacitance

70%

-1.0

90%

30%

1.0

7.5

10%

µA

Output Logic "1" (I = 120µA)

Output Logic "0" (I = 360µA)

"Off" State Leakage Current (Vout = V

)

µA

AC Parameters

CTCSS Decoder

Sensitivity

Response Time

De-Response Time

Frequency Range

(Pure CTCSS Tone)

(Composite Signal)

-26.0

140

145

253

CTCSS Detector - Fast Detect

Sensitivity

Response Time

Frequency Range

(Pure CTCSS Tone)

(Composite Signal)

-26.0

56.0

253

CTCSS Detector - Fast Predictive

Sensitivity

(Pure CTCSS Tone)

(Composite Signal)

-26.0

37.0

Response Time

Frequency Range

Decode Bandwidth

253

CTCSS Encoder

Frequency Range

253

0.3

+1.0

Tone Frequency Resolution

Tone Amplitude Tolerance

Total Harmonic Distortion

-1.0

2.0

ã 1997 Consumer Microcircuits Limited

D/818/4

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中文翻译

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