LTC5507 datasheet(3/16 Pages) LINER

Part #	LTC5507

Description	800MHz to 2.7GHz High Linearity Direct Conversion Quadrature Demodulator

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Manufacturer	LINER [Linear Technology]

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LT5575

3

5575f

AC ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

RF Input Frequency Range

No External Matching (High Band)

With External Matching (Low Band, Mid Band)

1.5 to 2.7

0.8 to 1.5

GHz

LO Input Frequency Range

No External Matching (High Band)

With External Matching (Low Band, Mid Band)

1.5 to 2.7

0.8 to 1.5

GHz

Baseband Frequency Range

DC to 490

MHz

Baseband I/Q Output Impedance

Single-Ended

65Ω// 5pF

RF Input Return Loss

ZO = 50Ω, 1.5GHz to 2.7GHz,

Internally Matched

>10

dB

LO Input Return Loss

ZO = 50Ω, 1.5GHz to 2.7GHz,

Internally Matched

>10

dB

LO Input Power

–13 to 5

dBm

Test circuit shown in Figure 1. (Notes 2, 3)

AC ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Conversion Gain

Voltage Gain, RLOAD = 1kΩ

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

3

4.2

3.5

2

dB

Noise Figure (Double-Side Band, Note 4)

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

12.8

12.7

13.6

15.7

dB

Input 3rd-Order Intercept

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

28

22.6

22.7

23.3

dBm

Input 2nd-Order Intercept

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

54.1

60

56

52.3

dBm

Input 1dB Compression

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

13.2

11.2

11

12.3

dBm

I/Q Gain Mismatch

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

0.03

0.01

0.04

dB

I/Q Phase Mismatch

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

0.5

0.4

0.6

0.2

°

LO to RF Leakage

RF = 900MHz (Note 5)

RF = 1900MHz

RF = 2100MHz

RF = 2500MHz

–60.8

–64.6

–60.2

–51.2

dBm

VCC = +5V, EN = High, TA = 25°C, PRF = –10dBm (–10dBm/tone for

2-tone IIP2 and IIP3 tests), Baseband Frequency = 1MHz (0.9MHz and 1.1MHz for 2-tone tests), PLO = 0dBm, unless otherwise noted.

(Notes 2, 3, 6)

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