MX465P データシートの表示（PDF） - CML Microcircuits

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MX465P

LOW VOLTAGE CTCSS ENCODER/DECODER with Tx and Rx Audio Filters

CML Microcircuits 

Low Voltage CTCSS Encoder/Decoder

12

5.1.2 Operating Limits

Correct operation of the device outside these limits is not implied.

Supply (VDD-VSS)

Xtal Frequency

Operating Temperature

Min.

2.7

4.0

-40

Max.

5.5

4.0

85

Units

V

MHz

°C

MX465

5.1.3 Operating Characteristics

For the following conditions unless otherwise specified:

VDD = 3.3V / 5.0V at TAMB = 25°C, VSS = 0V,

Xtal Frequency = 4.0 MHz, 100ppm max.

(Over the life of the XTAL the operating range may vary from 100ppm up to 1000ppm)

0dB ref. = 750mVRMS (proportional to VDD; see note 17)

Composite Signal:

1kHz test tone = 300mVRMS, f0 CTCSS tone = 30 mVRMS, 75mVRMS Noise (band limited to 6kHz

Gaussian)

Static Values

Supply voltage

Supply current

VDD = 5.0V

VDD = 3.3V

Analog input impedance

Analog output impedance

Digital Input impedance

Input logic 1

Input logic 0

Output Logic 1 source = 0.1mA

Output Logic 0 sink = 0.1mA

Dynamic Values

Speech filter

Total harmonic distortion

Output noise level (input AC short

circuit, audio switch enabled)

Sinad

Spurious emissions

Cutoff frequency

Bandpass ripple

Stopband attenuation <250Hz

Passband gain 1kHz

TX/RX isolation

Notes

Min.

Typ.

Max.

Units

2.7

3.3/5.0

5.5

V

18

18

1,18

1

1

2

2

480

25

70%VDD

80%VDD

3.7

4.2

mA

1.3

1.6

mA

550

k

400

1000



40

k

V

30%VDD

V

V

20%VDD

V

5,8,19

8,18

1.0

1.5

%

0.5

1.0

mVRMS

8,9

40

50

dB

18

- 48

dB

300

Hz

8

1

1.8

dB

7,8,19

33

36

dB

- 0.5

0

0.5

dB

5

60

dB

©1998 MX•COM, INC.

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Doc. #20480143.008

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