MAX2102CWI datasheet(3/16 Pages) MAXIM

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Direct-Conversion Tuner ICs for

Digital DBS Applications

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AC ELECTRICAL CHARACTERISTICS

(MAX2102 EV kit circuit (Figure 1); VCC = +5V; PSGND = open; MOD = GND; fRFIN = 2150MHz; PRFIN = -19dBm; fLO =

2150.125MHz; PLO = -15dBm driven single-ended into LO; AGC set via servo loop for VIOUT = VQOUT = 0.5Vp-p; IOUT, QOUT drive

AC-coupled 100

Ω loads; 2kΩ from PSOUT to GND; TA = +25°C; unless otherwise noted.)

PRFIN = -19dBm per tone, AGC set via servo loop for

VIOUT = VQOUT = 0.5Vp-p per tone,

f1RFIN = 1448.1MHz, f2RFIN = 1449MHz,

fLO = 1451MHz

PRFIN = -19dBm per tone, AGC set via servo loop for

VIOUT = VQOUT = 0.5Vp-p per tone,

f1RFIN = 1200MHz, f2RFIN = 2150MHz,

fLO = 951MHz

fRFIN = 1441MHz,

fLO = 1451MHz

CONDITIONS

dBm

6.5

RFIN Input Third-Order Intercept

11.2

dBm

15.1

RFIN Input Second-Order Intercept

13.2

12.9

UNITS

MIN

TYP

MAX

PARAMETER

fRFIN = 950MHz to 2150MHz, 50Ω source

Defined as

∆NF/∆Gain; for AGC range,

defined as single-carrier power range

of -69dBm to -59dBm (MAX2102) or

-60dBm to -50dBm (MAX2105)

950MHz < fRFIN < 2150MHz, 950MHz < fLO <

2150MHz. Dominated by LO second-harmonic power

causing downconversion of unwanted channel. Test

conditions: fLO = 1075.5MHz, fRFIN = 2150MHz,

PRFIN = -69dBm (MAX2102) or -60dBm (MAX2105)

PLO = -15dBm, 950MHz < fLO < 2150MHz (Note 3)

PLO = -15dBm, PLO = -15dBm (differentially driven),

950MHz < fLO < 2150MHz (Note 3)

2.3:1

dB/dB

-0.5

Maximum Noise-Figure Variation with

AGC Gain Setting

RFIN Worst-Case VSWR across

Band

dBc

-32.3

Maximum Power of Spurious

Downconversion Products

dBm

-49

-54

LO Leakage at RFIN

PRFIN = -69dBm

AGC = 4V,

PRFIN set via servo

loop for VIOUT =

VQOUT = 0.5Vp-p

MAX2102

PRFIN = -60dBm

MAX2105

15.7

PRFIN = -69dBm

fRFIN = 2141MHz,

fLO = 2151MHz

Noise Figure

MAX2105

PRFIN = -60dBm

15.5

MAX2102

MAX2105

11.5

MAX2102

MAX2105

-0.7

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