AD8328ARQ datasheet(3/20 Pages) AD

Teilenummer	AD8328ARQ

Bauteilbeschribung	5 V Upstream Cable Line Driver

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Hersteller	AD [Analog Devices]

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AD8328

Rev. A | Page 3 of 20

SPECIFICATIONS

TA = 25°C, VS = 5 V, RL = RIN = 75 Ω, VIN (differential) = 29 dBmV. The AD8328 is characterized using a 2:1 transformer1 at the device output.

Table 1.

Parameter

Conditions

Min

Typ

Max

Unit

INPUT CHARACTERISTICS

Specified AC Voltage

Output = 60 dBmV, max gain

29

dBmV

Input Resistance

Single-ended input

800

Ω

Differential input

1600

Ω

Input Capacitance

2

pF

GAIN CONTROL INTERFACE

Voltage Gain Range

58

59.0

60

dB

Maximum Gain

Gain code = 60 decimal codes

30.5

31.5

32.5

dB

Minimum Gain

Gain code = 1 decimal code

−28.5

−27.5

−26.5

dB

Output Step Size

0.6

1.0

1.4

dB/LSB

Output Step Size Temperature Coefficient

TA = −40°C to +85°C

±0.0005

dB/°C

OUTPUT CHARACTERISTICS

Bandwidth (−3 dB)

All gain codes (1 to 60 decimal codes)

107

MHz

Bandwidth Roll-Off

f = 65 MHz

1.2

dB

1 dB Compression Point2

Maximum gain, f = 10 MHz, output referred

17.9

18.4

dBm

Minimum gain, f = 10 MHz, input referred

2.2

3.3

dBm

Output Noise2

Maximum Gain

f = 10 MHz

135

151

nV/√Hz

Minimum Gain

f = 10 MHz

1.2

1.3

nV/√Hz

Tx Disable

f = 10 MHz

1.1

1.2

nV/√Hz

Noise Figure2

Maximum Gain

f = 10 MHz

16.7

17.7

dB

Differential Output Impedance

Tx enable and Tx disable

75 ± 30%3

Ω

OVERALL PERFORMANCE

Second-Order Harmonic Distortion4, 5

f = 33 MHz, VOUT = 60 dBmV @ maximum gain

−67

−56

dBc

f = 65 MHz, VOUT = 60 dBmV @ maximum gain

−61

−55

dBc

Third-Order Harmonic Distortion4, 5

f = 21 MHz, VOUT = 60 dBmV @ maximum gain

−57.5

−56

dBc

f = 65 MHz, VOUT = 60 dBmV @ maximum gain

−54

−52.5

dBc

ACPR2, 6

−58

−56

dBc

Isolation (Tx Disable)2

Maximum gain, f = 65 MHz

−85

−81

dB

POWER CONTROL

Tx Enable Settling Time

Maximum gain, VIN = 0

2.5

μs

Tx Disable Settling Time

Maximum gain, VIN = 0

3.8

μs

Output Switching Transients2

Equivalent output = 31 dBmV

2.5

6

mV p-p

Equivalent output = 61 dBmV

16

54

mV p-p

Output Settling

Due to Gain Change

Minimum to maximum gain

60

ns

Due to Input Step Change

Maximum gain, VIN = 29 dBmV

30

ns

POWER SUPPLY

Operating Range

4.75

5

5.25

V

Quiescent Current

Maximum gain

98

120

140

mA

Minimum gain

18

26

34

mA

Tx disable (TXEN = 0)

1

2.6

3.5

mA

SLEEP mode (power-down)

1

20

100

μA

OPERATING TEMPERATURE RANGE

−40

+85

°C

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