RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS140820

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of

third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended

application circuitry and specifications at any time without prior notice.

3 of 7

RFAM3790

Parameter

Specification

Unit

Condition

Min

Typ

Max

Distortion

V+= 12V; TMB=30°C; ZS=ZL=75

Ω; Att=0dB

Adjacent Channel Power Ratio (ACPR);

N=4 contiguous 256QAM channels

-58

dBc

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

from channel block edge

-60

dBc

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

channel block edge to 6MHz from channel block edge)

-63

dBc

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

channel block edge to 12 MHz from channel block edge)

-65

dBc

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

from channel block edge to 18 MHz from channel block edge)

2

256QAM channel

-63

dBc

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

channels coinciding with 2nd harmonic components (up to

1000MHz);

3

256QAM channel

-63

dBc

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

channels coinciding with 3rd harmonic components (up to

1000MHz);

CTB

-67

dBc

(-6dB offset)

[4], [6]

XMOD

-60

dBc

CSO

-70

dBc

CIN

64

dB

CTB

-67

dBc

(-6dB offset)

[5], [6]

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 the NCTA. Composite

Triple Beat (CTB) - The CTB parameter is defined by the NCTA. Cross Modulation (XMOD) - Cross modulation (XMOD) is

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).