LT5503(RevA) データシートの表示（PDF） - Linear Technology

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LT5503
(Rev.:RevA)

1.2GHz to 2.7GHz Direct IQ Modulator and Mixer

Linear Technology 

LT5503

Electrical Characteristics (I/Q Modulator)

VCC1 = 3VDC, 2.4GHz matching, MODEN = High, GC1 = GC2 = Low, TA = 25°C, MODRFIN = 2.45GHz at –16dBm, [I – IB] and [Q – QB] =

100kHz CW signal at 1VP-P differential, Q leads I by 90°, unless otherwise noted. (Test circuit shown in Figure 2.) (Note 3)

PARAMETER

RF Carrier Input (MODRFIN)

Frequency Range2

Input VSWR

Input Power

Baseband Inputs (BI+, BI–, BQ+, BQ–)

Frequency Bandwidth (3dB)

Differential Input Voltage for 1dB Compressed Output

DC Common Mode Voltage

Differential Input Resistance

Input Capacitance

Gain Error

Phase Error

Modulated RF Carrier Output (MODRFOUT)

Output Power, Max Gain

Output VSWR

Image Suppression

Carrier Suppression

Output 1dB Compression

Output 3rd Order Intercept

Output 2rd Order Intercept

Broadband Noise

VGA Control Logic (GC2, GC1)

Switching Time

Input Current

Input Low Voltage

Input High Voltage

Output Power Attenuation

Output Power Attenuation

Output Power Attenuation

Modulator Enable (MODEN) Low = Off, High = On

Turn ON/OFF Time

Input Current

Enable

Disable

Modulator Power Supply Requirements

Supply Voltage

Modulator Supply Current

Modulator Shutdown Current

CONDITIONS

Requires Appropriate Matching

ZO = 50Ω

Internally Biased

ZO = 50Ω

f1 = 100kHz, fQ = 120kHz

f1 = 100kHz, fQ = 120kHz

20MHz Offset

GC2 = Low, GC1 = High

GC2 = High, GC1 = Low

GC2 = High, GC1 = High

MODEN = High

MODEN = Low

MIN

TYP

MAX

UNITS

1.2 to 2.7

GHz

1.3:1

–20 to –10

dBm

120

MHz

1

VP-P

1.4

VDC

18

kΩ

0.8

pF

±0.2

dB

±1

DEG

–6

–3

1.5:1

–26

–34

–24

–32

–3

2

16

–142

dBm

dBc

dBc

dBm

dBm

dBm

dBm/Hz

100

ns

2

µA

0.4

VDC

1.7

VDC

4.5

dB

9

dB

13.5

dB

1

µs

105

µA

VCC – 0.4

VDC

0.4

VDC

1.8

5.25

VDC

29

38

mA

50

µA

For more information www.linear.com/LT5503

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