LTC5556

26

Rev 0

For more information www.analog.com



ANALOG DEVICES, INC. 2018

D16929-0-5/18(0)

www.analog.com

RELATED PARTS

TYPICAL APPLICATION

PART NUMBER DESCRIPTION

COMMENTS

Infrastructure

LTC5566

300MHz to 6GHz Dual Programmable Gain

Downconverting Mixer

12dB Gain, 35dBm OIP3 and 13.3dB NF at 2.6GHz

LTC5569

300MHz to 4GHz Dual Active Downconverting

Mixer

2dB Gain, 26.7dBm IIP3 and 11.7dB NF at 1950MHz, 3.3V/180mA Supply

LTC6430

High Linearity Differential RF/IF Amplifier

51dBm OIP3 at 240MHz, 100Ω Differential

LTC5544

4GHz to 6GHz Downconverting Mixer Family

7.4dB Gain, >25dBm IIP3, 11.3dB NF, 3.3V/200mA Supply

LT5554

Ultralow Distortion IF Digital VGA

48dBm OIP3 at 200MHz, 2dB to 18dB Gain Range, 0.125dB Gain Steps

LTC5576

3GHz to 8GHz Active Upconverting Mixer

25dBm OIP3, –0.6dB Gain, –154dBm/Hz Output Noise Floor, –36dBm LO Leakage

LTC5548

2GHz to 14GHz Wideband Microwave Mixer

Up- or Down-Conversion, 21.4dBm IIP3 at 9GHz, 0dBm LO Drive, IF Bandwidth DC to

6GHz

LTC5549

2GHz to 14GHz Wideband Microwave Mixer

Up- or Down-Conversion, 22.8dBm IIP3 at 12GHz, 0dBm LO Drive, Integrated Balun

with IF BW = 500MHz to 6GHz

LTC5593

Dual 2.3GHz to 4.5GHz Downconverting Mixer

8.5dB Gain, 27.7dBm IIP3, 9.5dB Noise Figure

RF PLL/Synthesizer with VCO

LTC6946

Low Noise, Low Spurious Integer-N PLL with

Integrated VCO

373MHz to 5.79GHz, –157dBc/Hz WB Phase Noise Floor, –100dBc/Hz Closed-Loop

Phase Noise

LTC6948

Low Noise, Low Spurious Frac-N PLL with

Integrated VCO

373MHz to 6.39GHz, –157dBc/Hz WB Phase Noise Floor, –274dBc/Hz Normalized

In-Band 1/f Noise

ADCs

LTC2145-14

14-Bit, 125Msps 1.8V Dual ADC

73.1dB SNR, 90dB SFDR, 95mW/Ch Power Consumption

LTC2185

16-Bit, 125Msps 1.8V Dual ADC

76.8dB SNR, 90dB SFDR, 185mW/Channel Power Consumption

LTC2158-14

14-Bit, 310Msps 1.8V Dual ADC, 1.25GHz Full-

Power Bandwidth

Figure 19. Test Circuit and Measured Conversion Gain with 3rd-Order Bandpass Interstage Filter

RF to IF Conv Gain vs IF Frequency

with 260MHz BP Interstage Filter

5556 F19a

½ LTC5556

LO

RF1

RF1

(50)

1pF

L1, L3 = 33nH

C5, C7 = 3pF

C21, C23 = 4.3pF

L5, L7 = 120nH

L19 - 68nH

3rd-ORDER CHEBYSHEV BPF

0.2dB PASSBAND RIPPLE

680nH

680nH

1.2pF

IF

20nH

20nH

10nF

IF1

(100 DIFF)

10nF

L5

L19

L7

L1

L3

C5

C7

C21

C23

RF = 3.39GHz–4.34GHz

LO = 3.34GHz

IF = 50MHz–1000MHz

RF = 3.6GHz

IF = 260MHz

BW = 155MHz

0dB

6dB

12dB

IF FREQUENCY (MHz)

50

100

1000

–57

–51

–45

–39

–33

–27

–21

–15

–9

–3

3

9

5556 F19b