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RFAM2790

DS121001

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.

Application Circuit

Attenuator

Attenuator Range

0 to 20

dB

Attenuator Voltage 0V to 12V

Power Enable/Disable

Amp enabled

Logic high (3.3V) applied to power enable

pin[3]

Amp disabled

Logic low (0V) applied to power enable pin[4]

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

[2] 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.

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).

[3] Logic high is defined as power enable voltage >2V

[4] Logic low is defined as power enable voltage <0.4V

Parameter

Specification

Unit

Condition

Min.

Typ.

Max.

C4

4.7nF

C2

4.7nF

C1

DNI

D2

MM3Z5V6T1

R1

10k



D3

TGL34-33A

C3

4.7nF

C5

4.7nF

C7

DNI

D1

TQP200002

25V

FB1

Bead 60



T1

RFXF0006

T2

RFXF0008

V+

RF INPUT

RF OUTPUT

1

2

3

4

5

6

7

8

9

C6

4.7nF

Power

Enable

Att.

Adjust

GND

U1

RFAM2790

C9

4.7nF

C8

4.7nF

D4

TQP200002

25V

T3

RFXF0009