RFAM3790

Data Sheet Rev.D, Oct 07, 2021 | Subject to change without notice

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Electrical Specifications

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Parameter

Conditions (V+=12V, TMB=30°C, ZS=ZL=75 ATT=0dB)

Min

Typ

Max

Unit

Distortion

Adjacent Channel Power Ratio

(ACPR);

N=4 contiguous 256QAM channels

Channel Power = 58dBmV; Adjacent channel up to 750 kHz from

channel block edge

-58

dBc

Channel Power = 58dBmV; Adjacent channel (750 kHz from

channel block edge to 6MHz from channel block edge)

-60

dBc

Channel Power = 58dBmV; Next-adjacent channel (6 MHz from

channel block edge to 12 MHz from channel block edge)

-63

dBc

Channel Power = 58dBmV; Third-adjacent channel (12 MHz from

channel block edge to 18 MHz from channel block edge)

-65

dBc

2nd Order Harmonic (HD2);

N=1 256QAM channel

Channel Power = 66dBmV; In each of 2N contiguous 6 MHz

channels coinciding with 2nd harmonic components (up to

1000MHz);

-63

dBc

3rd Order Harmonic (HD3);

N=1 256QAM channel

Channel Power = 66dBmV; In each of 3N contiguous 6 MHz

channels coinciding with 3rd harmonic components (up to

1000MHz);

-63

dBc

CTB

VO=46dBmV, flat, 79 analog channels plus 75 digital channels

(-6dB offset) [4], [6]

-67

dBc

XMOD

-60

dBc

CSO

-70

dBc

CIN

64

dB

CTB

VO=45dBmV, flat, 79 analog channels plus 111 digital channels

(-6dB offset) [5], [6]

-67

dBc

XMOD

-61

dBc

CSO

-70

dBc

CIN

65

dB

1.

The slope is defined as the difference between the gain at the start frequency and the gain at the stop frequency.

2.

Logic high is defined as power enable voltage >2V

3.

Logic low is defined as power enable voltage <0.4V

4.

79 analog channels, NTSC frequency raster: 55.25MHz to 547.25MHz, +46dBmV flat output level, plus 75 digital channels, -6dB offset

relative to the equivalent analog carrier.

5.

79 analog channels, NTSC frequency raster: 55.25MHz to 547.25MHz, +45dBmV flat output level, plus 111 digital channels,-6dB offset

relative to the equivalent analog carrier.

6.

Composite Second Order (CSO) - The CSO parameter (both sum and difference products) is defined by ANSI/SCTE 6.

Composite Triple Beat (CTB) - The CTB parameter is defined by ANSI/SCTE 6.

Cross Modulation (XMOD) - Cross modulation (XMOD) is defined by ANSI/SCTE 58, measured at baseband (selective voltmeter method),

referenced to 100% modulation of the carrier being tested

Carrier to Intermodulation Noise (CIN) - The CIN parameter is defined by ANSI/SCTE 17 (Test procedure for carrier to noise).