MX128 Просмотр технического описания (PDF) - CML Microsystems Plc

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MX128

Audio Band Scrambler

CML Microsystems Plc 

Audio Band Scrambler

FX/MX128

Operating Characteristics

For the following conditions unless otherwise specified:

VDD = 3.3V at TAMB = 25°C

Clock Frequency = 10.24MHz

Audio Level 0dB ref. at 1kHz = (VDD-1) x 150mVRMS e.g. VDD = 3.3V 0dB = 345mVRMS.

Static Values

Supply Current

Notes Min. Typ. Max

—

2.0

3.0

Units

mA

Input Impedance

Digital

Amplifiers

2

100

—

—

kΩ

2

1.0

10.0

—

MΩ

Output Impedance (RXOUT, TXOUT)

—

1.0

—

kΩ

Input Logic 1 Voltage

Input Logic 0 Voltage

1

70%

—

—

VDD

1

—

—

30%

VDD

Dynamic Values

General

Analogue Signal Input Levels

Analogue Output Noise

-16.0

—

4

—

2.5

3

dB

5.0

mVRMS

Clear Mode

Passband -3dB Cutoff Frequencies

Low

High

—

—

300

Hz

3000

—

—

Hz

Passband Ripple (300-3000Hz)

Rx Channel

Tx Channel

0

—

3.6

dB

0

—

2.9

dB

Passband Ripple (500-2750Hz)

Rx Channel

Tx Channel

0

—

2.2

dB

0

—

2.0

dB

Filter Attenuation at 3.3 kHz

Rx and Tx Channel

—

30

—

dB

Filter Attenuation at 3.6 kHz

Rx and Tx Channel

—

45

—

dB

© 2003 CML Microsystems Plc

8

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