AD8346 データシートの表示（PDF） - Analog Devices

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AD8346

0.8 GHz to 2.5 GHz Quadrature Modulator

Analog Devices 

AD8346

SPECIFICATIONS

VS = 5 V; TA = 25°C; LO frequency = 1900 MHz; LO level = –10 dBm; BB frequency = 100 kHz; BB inputs are dc-biased to 1.2 V; BB input

level = 1.0 V p-p each pin for 2.0 V p-p differential drive; LO source and RF output load impedances are 50 Ω, dBm units are referenced

to 50 Ω unless otherwise noted.

Table 1.

Parameters

Conditions

Min Typ Max Unit

RF OUTPUT

Operating Frequency

0.8

2.5

GHz

Quadrature Phase Error

See Figure 35 for setup

1

Degree rms

I/Q Amplitude Balance

See Figure 35 for setup

0.2

dB

Output Power

I and Q channels in quadrature

−13 −10 −6

dBm

Output VSWR

1.25:1

Output P1 dB

−3

dBm

Carrier Feedthrough

−42 −35 dBm

Sideband Suppression

−36 −25 dBc

IM3 Suppression

−60

dBc

Equivalent Output IP3

20

dBm

Output Noise Floor

20 MHz offset from LO

−147

dBm/Hz

RESPONSE TO CDMA IS95 BASEBAND SIGNALS

ACPR (Adjacent Channel Power Ratio)

See Figure 35 for setup

−72

dBc

EVM (Error Vector Magnitude)

See Figure 35 for setup

2.5

%

Rho (Waveform Quality Factor)

See Figure 35 for setup

0.9974

MODULATION INPUT

Input Resistance

12

kΩ

Modulation Bandwidth

−3 dB

70

MHz

LO INPUT

LO Drive Level

−12

−6

dBm

Input VSWR

1.9:1

ENABLE

ENBL HI Threshold

2.0

V

ENBL LO Threshold

0.5

V

ENBL Turn-On Time

Settle to within 0.5 dB of final SSB

output power

2.5

μs

ENBL Turn-Off Time

Time for supply current to drop below

12

μs

2 mA

POWER SUPPLIES

Voltage

2.7

5.5

V

Current Active (ENBL HI)

35

45

55

mA

Current Standby (ENBL LO)

1

20

μA

Rev. A | Page 3 of 20

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