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MAX3507

Upstream CATV Amplifier with On-Chip Anti-Alias Filter

Maxim Integrated 

Upstream CATV Amplifier with

On-Chip Anti-Alias Filter

AC ELECTRICAL CHARACTERISTICS

(MAX3507 EV Kit, VCC = +4.75V to +5.25V, VGND = 0, VTXEN = VSHDN = VCC, VIN = +34dBmV differential, TA = -40°C to +85°C,

unless otherwise specified. A 4:1 impedance ratio (300Ω to 75Ω) balun is connected to differential output ports and balun output is

terminated into a 75Ω load. Typical parameters are at VCC = +5.0V, TA = +25°C.) (Note 1)

PARAMETER

Voltage Gain (AV)

Gain Flatness

Gain Step Size

Transmit-Disable Mode Noise

CONDITIONS

D7 = 1, gain code = 125

D7 = 1, gain code = 119

fIN = 5MHz,

TA = 0°C to +85°C

(Note 2)

D7 = 1, gain code = 104

D7 = 1, gain code = 84

D7 = 1, gain code = 64

D7 = 0, gain code = 74

D7 = 0, gain code = 54

D7 = 0, gain code = 42

fIN = 65MHz,

TA = 0°C to +85°C

(Note 3)

D7 = 1, gain code = 127

VOUT = 61dBmV, fIN = 42MHz, equalizer disabled (Note 3)

VOUT = 61dBmV, fIN = 65MHz, equalizer disabled (Note 3)

fIN = 5MHz to 65MHz, AV = -26dB to +30dB

fIN = 5MHz to 65MHz, AV = -26dB to +30dB, any 2-bit

transition of D0, D1

fIN = 5MHz to 42MHz, D7 = 0, gain code = 109; D7 = 1,

gain code = 81, TA = 0°C to +85°C

Any BW = 160kHz from 5MHz to 65MHz, TXEN = VEE

(Note 3)

MIN

29.6

26.8

19.5

9.7

-0.7

-10.5

-20.4

-27.2

TYP

31.1

28.3

20.9

10.9

0.5

-9.3

-19.1

-25.7

MAX

32.6

29.8

22.3

12.1

1.7

-8.1

-17.8

-24.2

UNITS

dB

29.0

-1.1 -0.5 +0.2

dB

-2.1 -0.7 +0.3

0.5

0.7

1.0

1.3

dB

0.6

1.0

1.4

-64 dBmV

Isolation in Transmit Disable

Mode

TXEN = VEE, fIN = 5MHz to 65MHz

Transmit Mode Noise

Any BW = 160kHz from 5MHz to 65MHz, gain = -26dB to

+30dB (Note 3)

Transmit Enable Transient

Duration

TXEN input rise/fall time < 0.1µs,

TA = +25°C (Notes 3, 4)

Transmit Disable Transient

Duration

Transmit Disable/Transmit

Enable Transient Step Size

Input Impedance

Output Return Loss

TXEN input rise/fall time < 0.1µs,

TA = +25°C (Notes 3, 4)

D7 = 1, gain code = 119 (AV = >27dB), TA = +25°C

D7 = 0, gain code = 94 (AV = 0), TA = +25°C (Note 3)

fIN = 5MHz to 65MHz, single ended (Note 3)

0.8

fIN = 5MHz to 42MHz in 75Ω system, D7 = 1,

gain code = 125 (AV = 30dB) (Note 5)

Output Return Loss in Transmit

Disable Mode

fIN = 5MHz to 42MHz in 75Ω system, TXEN = VEE (Note 5)

70

dB

-54.5 dBc

2

µs

2

µs

100

mVp-p

1.5

5.2

kΩ

10

dB

10

dB

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