MAX19997AETX+T【PDF 4/35 页】IC DOWNCONVERTER 2CH 36TQFN

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MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(continued)

(Typical Application Circuit optimized for the standard RF band (see Table 1) , V CC = 4.75V to 5.25V, RF and LO ports are driven

from 50 ? sources, P LO = -3dBm to +3dBm, P RF = -5dBm, f RF = 2300MHz to 2900MHz, f LO = 2650MHz to 3250MHz, f IF = 350MHz,

f RF < f LO , T C = -40°C to +85°C. Typical values are at V CC = 5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 2600MHz, f LO = 2950MHz,

f IF = 350MHz, T C = +25°C, unless otherwise noted.) (Note 7)

PARAMETER

Input Compression Point

SYMBOL

IP 1dB

CONDITIONS

(Notes 8, 9, 11)

MIN

9.6

TYP

11.3

MAX

UNITS

dBm

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

(Notes 8, 9)

f RF = 2600MHz, f RF1 - f RF2 = 1MHz,

22.0

24

Third-Order Input Intercept Point

IIP3

P RF = -5dBm per tone, T C = +25°C

22.5

24

dBm

(Notes 8, 9)

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

T C = +100°C

24.2

Third-Order Input Intercept Point

Variation Over Temperature

f RF1 - f RF2 = 1MHz, T C = -40°C to +100°C

Single sideband, no blockers present

f RF = 2400MHz to 2900MHz (Notes 6, 8, 10)

±0.3

10.4

12.5

dBm

Noise Figure

NF SSB

Single sideband, no blockers present,

f RF = 2400MHz to 2900MHz , T C = +25°C

10.4

11.4

dB

(Notes 6, 8, 10)

Noise Figure Temperature

Coefficient

TC NF

Single sideband, no blockers present,

T C = -40°C to +100°C

0.018

dB/°C

Noise Figure Under Blocking

Conditions

NF B

f BLOCKER = 2412MHz, P BLOCKER = 8dBm,

f RF = 2600MHz, f LO = 2950MHz, P LO =

0dBm, V CC = 5.0V, T C = +25°C (Notes 8, 12)

22.5

25

dB

f RF = 2600MHz, f LO = 2950MHz,

P RF = -10dBm, f SPUR = f LO - 175MHz

(Note 8)

62

69

2LO - 2RF Spur

2x2

P RF = -10dBm, T C = +100°C

68

dBc

f RF = 2600MHz, f LO = 2950MHz,

P RF = -5dBm, f SPUR = f LO - 175MHz

(Notes 8, 9)

P RF = -5dBm, T C = +100°C

f RF = 2600MHz, f LO = 2950MHz,

P RF = -10dBm, f SPUR = f LO - 116.67MHz,

T C = +25°C (Note 8)

57

73

64

63

84

3LO - 3RF Spur

3x3

P RF = -10dBm, T C = +100°C

85

dBc

f RF = 2600MHz, f LO = 2950MHz,

P RF = -5dBm, f SPUR = f LO - 116.67MHz,

T C = +25°C (Notes 8, 9)

P RF = -5dBm, T C = +100°C

63

74

75

4

RF Input Return Loss

LO on and IF terminated into a matched

impedance

14

dB

Maxim Integrated

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