MAX2104(2001) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX2104
(Rev.:2001)

Direct-Conversion Tuner IC for Digital DBS Applications

Maxim Integrated 

Direct-Conversion Tuner IC for

Digital DBS Applications

AC ELECTRICAL CHARACTERISTICS (continued)

(VCC = 4.75V to 5.25V, VIOUT_ = VQOUT_ = 0.59VP-P, CIOUT_ = CQOUT_ = 10pF, fFLCLK = 2MHz, RIOUT_ = RQOUT_ = 10kΩ,

VFDOUB = VINSEL = VCPG1 = VCPG2 = 2.4V, VPLLIN+ = VMOD+ = 1.3V, VPLLIN- = VMOD- = 1.1V, TA = +25°C. Typical values are at

VCC = 5.0V and TA = +25°C, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

SSYYNNTTHHEESSIIZZEERR

XTLOUT Output Voltage Swing

XTLOUT Output Voltage DC

Crystal Frequency Range (Note 1)

Load = 10pF | | 10kΩ, fXTLOUT = 6MHz

0.75

1

1.5

VP-P

2

V

4

7.26 MHz

MOD+, MOD- Setup Time (Note 1)

MOD+, MOD- Hold Time (Note 1)

LLOOCCAALL OOSSCCIILLLLAATTOORR

LO Tuning Range (Note 1)

tSUM

tHM

Figure 1

Figure 1

7

ns

0

ns

590

1180 MHz

LO Phase Noise (Notes 7, 12)

At 1kHz offset, fLO = 2175MHz

At 10kHz offset, fLO = 2175MHz

At 100kHz offset, fLO = 2175MHz

-55

-75

dBc/Hz

-95

RFIN_ to LO Input Isolation

(Note 10)

fRFIN_ = 2150MHz

57

dB

Note 1: Minimum and maximum values are guaranteed by design and characterization over supply voltage.

Note 2: With external 100Ω termination resistor.

Note 3: Driving differential load of 10kΩ || 15pF.

Note 4: Two signals are applied to RFIN_ at fLO - 100MHz and fLO - 199MHz. VGC2 = 1V; VGC1 is set such that the baseband out-

puts are at 590mVP-P. IM products are measured at baseband outputs but are referred to RF inputs.

Note 5: Two signals are applied to RFIN_ at 1200MHz and 2150MHz. VGC2 = 1V, VGC1 is set such that the baseband outputs are

at 590mVP-P. IM products are measured at baseband outputs but are referred to RF inputs.

Note 6: PRFIN_ = -40dBm so that front end IM contributions are minimized.

Note 7: Using L64733/L64734 demo board from LSI Logic.

Note 8: Downconverted level, in dBc, of carrier present at fLO x 2, fLO = 1180MHz, fVCO = 590MHz, VFDOUB = 2.4V.

Note 9: Downconverted level, in dBc, of carrier present at fO / 2, fLO = 2175MHz, fVCO = 1087.5MHz, VFDOUB = 2.4V.

Note 10: Leakage is dominated by board parasitics.

Note 11: VCPG1 = VCPG2 = VFDOUB = VINSEL = 0.5V, fFLCLK = 0.5MHz.

Note 12: Measured at tuned frequency with PLL locked. All phase noise measurements assume tank components have a Q > 50.

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