MAX19998 데이터 시트보기 (PDF) - Maxim Integrated

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MAX19998

SiGe, High-Linearity, 2300MHz to 4000MHz Downconversion Mixer with LO Buffer

Maxim Integrated 

SiGe, High-Linearity, 2300MHz to 4000MHz

Downconversion Mixer with LO Buffer

5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS—fRF = 3100MHz to 3900MHz,

LOW-SIDE LO INJECTION

(Typical Application Circuit, with tuning elements outlined in Table 1, R1 = 698ω, R2 = 604ω, VCC = 4.75V to 5.25V, RF and LO ports

are driven from 50I sources, PLO = -3dBm to +3dBm, PRF = -5dBm, fRF = 3100MHz to 3900MHz, fIF = 300MHz, fLO = 2800MHz to

3600MHz, fRF > fLO, TC = -40NC to +85NC. Typical values are for TC = +25NC, VCC = 5.0V, PRF = -5dBm, PLO = 0dBm, fRF = 3500MHz,

fLO = 3200MHz, fIF = 300MHz. All parameters are guaranteed by design and characterization, unless otherwise noted.) (Note 7)

PARAMETER

Small-Signal Conversion Gain

Gain Variation vs. Frequency

SYMBOL

CONDITIONS

GC TC = +25NC (Notes 8, 9)

DGC

fRF = 3100MHz to 3900MHz, any 100MHz

band

fRF = 3100MHz to 3900MHz, any 200MHz

band

MIN TYP MAX UNITS

7.6

8.7

9.4

dB

0.15

dB

0.3

Conversion Gain Temperature

Coefficient

Input 1dB Compression Point

Third-Order Input Intercept Point

TCCG

IP1dB

IIP3

fRF = 3100MHz to 3900MHz,

TC = -40NC to +85NC

(Note 10)

fRF1 - fRF2 = 1MHz, PRF1 = PRF2 = -5dBm/tone,

TC = +25NC (Note 9)

10.0

22

-0.01

11.4

24.3

dB/NC

dBm

dBm

IIP3 Variation with TC

Single-Sideband Noise Figure

Noise Figure Temperature

Coefficient

Noise Figure Under Blocking

2RF - 2LO Spur Rejection

3RF - 3LO Spur Rejection

RF Input Return Loss

fRF = 3100MHz to 3900MHz, fRF1 - fRF2 = 1MHz,

PRF1 = PRF2 = -5dBm/tone, TC = -40NC to +85NC

No blockers present (Note 5)

NFSSB No blockers present, TC = +25NC (Note 5)

TCNF

Single sideband, no blockers present,

TC = -40NC to +85NC

+8dBm blocker tone applied to RF port,

NFB

fRF = 3500MHz, fLO = 3200MHz,

fBLOCKER = 3750MHz, PLO = 0dBm,

VCC = +5.0V, TC = +25NC (Notes 5, 11)

2x2

fSPUR

=

fLO

+

150MHz

PRF

PRF

= -10dBm (Note

= -5dBm (Note

5)

9)

63

58

3x3

fSPUR

=

fLO

+

100MHz

PRF

PRF

= -10dBm (Note

= -5dBm (Note

5)

9)

80

70

RLRF

LO on and IF terminated into a matched

impedance

Q0.2

9.7

9.7

0.018

12.5

11.0

dBm

dB

dB/NC

21

25

dB

67

dBc

62

85

dBc

75

25

dB

LO Input Return Loss

RLLO

RF and IF terminated into a matched

impedance

16

dB

IF Output Impedance

ZIF

Nominal differential impedance at the IC’s IF

outputs

200

I

RF terminated into 50I, LO fIF = 450MHz,

driven by 50I source, IF L1 = L2 = 120nH

20

transformed to 50I using fIF = 350MHz,

external components shown L1 = L2 = 270nH

20

IF Output Return Loss

RLIF in the Typical Application

dB

Circuit. See the Typical

Operating Characteristics fIF = 300MHz,

for performance vs. inductor L1 = L2 = 390nH

20

values.

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