MAX3509_05 datasheet(3/10 Pages) MAXIM

Part #	MAX3509

Description	Upstream CATV Amplifier

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Manufacturer	MAXIM [Maxim Integrated Products]

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BW = 160kHz, AV = -20dB, TA = +85

°C

BW = 160kHz, AV = -20dB, TA = +25

°C

Upstream CATV Amplifier

_______________________________________________________________________________________

3

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX3509 EV kit, VCC1 = VCC2 = 8.5V to 9.5V, TXEN = SHDN = high, D7 = 1, VINPUT = 34dBmV differential, output impedance =

75

Ω through a 1:1 transformer, TA = -40°C to +85°C, unless otherwise noted. Typical parameters are at TA = +25°C.) (Note 2.)

-38.5

fINPUT = 22MHz

-53

-48.5

-56

-53

dBc

HD3

3rd Harmonic Distortion

fINPUT = 65MHz

(Note 1)

-43

-40

VOUTPUT = +60dBmV

VOUTPUT = +66dBmV

VOUTPUT = 66dBmV

BW = 160kHz, AV = 32dB

fINPUT = 5MHz to 65MHz, TA = +25°C (Note 1)

fINPUT = 5MHz to 65MHz, single-ended,

TA = +25°C (Note 1)

CONDITIONS

dBc

-41

-39.5

-85

Transmit Mode Noise (Note 1)

1.2

ZINPUT

k

Ω

1.2

Input Impedance

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

fINPUT = 33MHz

-56

-50

-56

-53

dBc

AV = 32dB, 65MHz (Note 1)

dBm

26

P1dB

Output 1dB Compression Point

AV = 32dB, VINPUT swept from 34dBmV to

38dBmV (Note 1)

degrees

1.7

AM/PM

AM to PM

HD2

2nd Harmonic Distortion

fINPUT = 65MHz

(Note 1)

-56

-50

Ω

ZOUTPUT

Output Impedance in Transmit

Mode

VOUTPUT = +60dBmV

VOUTPUT = +66dBmV

AV = 2dB or lower, TA = +25°C

AV = 32dB, TA = +25°C

mVP-P

1.5

9

25

100

TXEN Transient Step Size

(Note 1)

dBmV

TXEN = low, BW = 160kHz, AV = +32dB,

fINPUT = 5MHz to 65MHz (Note 1)

dBmV

-70

Transmit-Disable Mode Noise

Floor

TXEN rise time <0.1µs, TA = +25°C (Note 1)

µs

1.4

2

TXEN Enable Transient Duration

TXEN fall time <0.1µs, TA = +25°C (Note 1)

µs

1

1.5

TXEN Disable Transient Duration

AV = 32dB, VINPUT swept from 34dBmV to

38dBmV (Note 1)

dB

0.1

AM/AM

AM to AM

VOUTPUT = 66dBmV

TXEN = low, fINPUT = 5MHz to 65MHz,

TA = +25°C (Note 1)

170

Ω

ZOUTPUT

Output Impedance in

Transmit-Disable Mode

-53

dBc

IM3

Two-Tone Third-Order Distortion

Input tones at 65MHz and 65.2MHz,

VINPUT = 31dBmV/tone, AV = 32dB (Note 1)

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