MAX19999ETX+T【PDF 3/19 页】IC DOWNCONVERTER 2CH 36TQFN

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Dual, SiGe High-Linearity, 3000MHz to

4000MHz Downconversion Mixer with LO Buffer

+5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS

(Typical Application Circuit, V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 Ω sources, P LO = -3dBm to +3dBm,

P RF = -5dBm, f RF = 3200MHz to 3900MHz, f LO = 2800MHz to 3600MHz, f IF = 350MHz, f RF > f LO , T C = -40°C to +85°C. Typical val-

ues are at V CC = +5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 3550MHz, f LO = 3200MHz, f IF = 350MHz, T C = +25°C, unless otherwise

noted.) (Note 8)

PARAMETER

Conversion Gain

SYMBOL

G C

CONDITIONS

T C = +25°C (Notes 6, 9)

MIN

7.3

TYP

8.3

MAX

9.3

UNITS

dB

Conversion Gain Flatness

f RF = 3200MHz to 3900MHz, over any

100MHz band

0.15

dB

Gain Variation Over Temperature

TC CG

f RF = 3200MHz to 3900MHz, T C = -40°C to

+85°C

-0.01

dB/°C

Input Compression Point

IP 1dB

(Notes 6, 9, 10)

9.8

11.4

dBm

f RF1 - f RF2 = 1MHz, P RF = -5dBm per tone

(Notes 6, 9)

21.6

24.3

Third-Order Input Intercept Point

IIP3

f RF = 3550MHz, f RF1 - f RF2 = 1MHz,

P RF = -5dBm per tone, T C = +25°C

22

24.3

dBm

(Notes 6, 9)

Third-Order Input Intercept Point

Variation Over Temperature

f RF1 - f RF2 = 1MHz, T C = -40°C to +85°C

Single sideband, no blockers present

(Notes 5, 6)

±0.3

10.5

13

dBm

Noise Figure

Noise Figure Temperature

Coefficient

Noise Figure Under Blocking

Conditions

NF SSB

TC NF

NF B

Single sideband, no blockers present,

f RF = 3500MHz, T C = +25°C (Notes 5, 6)

Single sideband, no blockers present,

T C = -40°C to +85°C

f BLOCKER = 3700MHz, P BLOCKER = 8dBm,

f RF = 3450MHz, f LO = 3100MHz, P LO = 0dBm,

V CC = 5.0V, T C = +25°C (Notes 5, 6, 11)

P RF = -10dBm,

f RF = 3500MHz, f LO =

(Notes 5, 6)

68

10.5

0.018

21

74

11.5

25

dB

dB/°C

dB

2RF-2LO Spurious Rejection

2x2

3150MHz, f SPUR = f LO +

175MHz, T C = +25°C

P RF = -5dBm,

(Notes 6, 9)

63

69

dBc

f RF = 3500MHz, f LO =

P RF = -10dBm,

(Notes 5, 6)

77

86

3RF-3LO Spurious Rejection

RF Input Return Loss

LO Input Return Loss

IF Output Impedance

3x3

Z IF

3150MHz, f SPUR = f LO +

116.67MHz, T C = +25°C P RF = -5dBm,

(Notes 6, 9)

LO on and IF terminated into a matched

impedance

RF and IF terminated into a matched

impedance

Nominal differential impedance at the IC’s

IF outputs

67

76

15.4

14

200

dBc

dB

dB

?

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