MAX2102 データシートの表示（PDF） - Maxim Integrated

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MAX2102

Direct-Conversion Tuner ICs for Digital DBS Applications

Maxim Integrated 

Direct-Conversion Tuner ICs for

Digital DBS Applications

AC ELECTRICAL CHARACTERISTICS (continued)

(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 100Ω loads; 2kΩ from PSOUT to GND; TA = +25°C; unless otherwise noted.)

PARAMETER

IOUT, QOUT Output Impedance

Maximum IOUT to QOUT Output

Impedance Difference

(Note 3)

(Note 3)

CONDITIONS

MIN TYP MAX UNITS

4.7

10

Ω

±1

Ω

Power-Supply Ripple Rejection

(measured at IOUT, QOUT)

VCC = 5V + 50mVp-p at 300kHz. Amplitude of

300kHz relative to 500mVp-p measured at IOUT,

QOUT. Measured using MAX2102 EV kit.

32

dB

Note 1: All specifications with guaranteed min/max limits are met within this frequency range. Contact factory for

MAX2102/MAX2105 versions with expanded frequency range.

Note 2: Guaranteed by production test and/or design and characterization.

Note 3: Guaranteed by design and characterization.

Note 4: IOUT, QOUT Phase and Amplitude Imbalance specifications are met within this LO power range.

Note 5: Tested under two conditions: 1) Normal test: PRFIN = -20dBm, and 2) Overdrive test: PRFIN = -5dBm but AGC set via servo

loop for VIOUT = VQOUT = 0.5Vp-p for PRFIN = -30dBm.

Note 6: Negative numbers (-0.1°) indicate improvement in quadrature accuracy with increasing temperature.

Note 7: Includes contribution from front-end gain tilt and delay variations produced by varying fRFIN by ±30MHz.

Note 8: 1kHz minimum frequency determined by 0.22µF offset-correction capacitors. Different value capacitors yield proportionally

different low-frequency cutoffs. Group delay at low frequencies will also be affected. See Applications Information section.

__________________________________________Typical Operating 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

100Ω loads, 2kΩ from PSOUT to GND, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

180

PSGND = GND

170 (PRESCALER ENABLED)

TA = +70°C

160

TA = +25°C

150

MAX2102

AGC RANGE vs. FREQUENCY

0

-10 AGC = 1V

-20

-30

TA = +70°C

TA = +25°C

TA = 0°C

-40

AGC RANGE

140

TA = 0°C

-50

TA = +70°C

TA = 0°C

-60

TA = +25°C

130

AGC = 4V

-70

120

-80

4.75

4.85

5.00

5.15

5.25

0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2

SUPPLY VOLTAGE (V)

RFIN FREQUENCY (GHz)

MAX2105

AGC RANGE vs. FREQUENCY

0

-10

-20

TA = 0°C TA = +25°C TA = +70°C

-30 AGC = 1V

-40

TA = +70°C

-50

TA = +25°C

-60

AGC = 4V

-70

TA = 0°C

-80

0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2

RFIN FREQUENCY (GHz)

_______________________________________________________________________________________ 5

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