Analog-devices AD8342 Bedienungsanleitung

Active Receive MixerLF to 500 MHz AD8342 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no respon

AD8342 Rev. 0 | Page 10 of 20 13350 55005352-013RF FREQUENCY (MHz)INPUT P1dB (dBm)121110987654100 150 200 250 300 350 400 450 50010MHz140MHz48MHz90MH

AD8342 Rev. 0 | Page 11 of 20 60010055005352-010RF FREQUENCY (MHz)INPUT IP2 (dBm)5040302010IF = 10MHzIF = 140MHzIF = 90MHzIF = 48MHz150 200 250 300

AD8342 Rev. 0 | Page 12 of 20 1610–15505352-018LO POWER (dBm)NF (dB)1514131211–13 –11 –9 –7 –5 –3 –1 1 3NF = 10MHzNF = 48MHzNF = 90MHzNF = 140MHz Fig

AD8342 Rev. 0 | Page 13 of 20 0–905005352-021LO FREQUENCY (MHz)LEAKAGE (dBc)–10–20–30–40–50–60–70–80250 450 650 850 Figure 33. LO to RF Leakage vs.

AD8342 Rev. 0 | Page 14 of 20 CIRCUIT DESCRIPTION The AD8342 is an active mixer optimized for operation within the input frequency range of near dc t

AD8342 Rev. 0 | Page 15 of 20 AC INTERFACESThe AD8342 is designed to downconvert radio frequencies (RF) to lower intermediate frequencies (IF) using

AD8342 Rev. 0 | Page 16 of 20 IF PORT The IF port comprises open-collector differential outputs. The NPN open collectors can be modeled as current so

AD8342 Rev. 0 | Page 17 of 20 05352-047COMM8IFOP7IFOM6COMM5AD8342ZL = 100ΩIF OUTZO = 50Ω+VS2:1 Figure 47. Biasing the IF Port Open-Collector Outputs

AD8342 Rev. 0 | Page 18 of 20 HIGH IF APPLICATIONS In some applications it may be desirable to use the AD8342 as an up-converting mixer. The AD8342 i

AD8342 Rev. 0 | Page 19 of 20 EVALUATION BOARD An evaluation board is available for the AD8342. The evaluation board is configured for single-ended

AD8342 Rev. 0 | Page 2 of 20 TABLE OF CONTENTS Specifications... 3

AD8342 Preliminary Technical Data Rev. 0 | Page 20 of 20 OUTLINE DIMENSIONS 10.50BSC0.60 MAXPIN 1INDICATOR1.50 REF0.500.400.300.25 MIN0.452.75BSC SQ

AD8342 Rev. 0 | Page 3 of 20 SPECIFICATIONS VS = 5 V, TA = 25°C, fRF = 238 MHz, fLO = 286 MHz, LO power = 0 dBm, ZO = 50 Ω, RBIAS = 1.82 kΩ, RF term

AD8342 Rev. 0 | Page 4 of 20 AC PERFORMANCE VS = 5 V, TA = 25°C, LO power = 0 dBm, ZO = 50 Ω, RBIAS = 1.82 kΩ, RF termination 100 Ω, IF terminated in

AD8342 Rev. 0 | Page 5 of 20 SPUR TABLE VS = 5 V, TA = 25°C, RF and LO power = 0 dBm, fRF = 238MHz, fLO = 286MHz, ZO = 50 Ω, RBIAS = 1.82 kΩ, RF ter

AD8342 Rev. 0 | Page 6 of 20 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter Rating Supply Voltage, VS 5.5 V RF Input Level 12 dBm LO Input Le

AD8342 Rev. 0 | Page 7 of 20 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 05352-002PIN 1INDICATOR1VPLO2LOCM3LOIN4COMM11 PWDN12 VPDC10 EXRB9 COMM5COM

AD8342 Rev. 0 | Page 8 of 20 TYPICAL PERFORMANCE CHARACTERISTICS VS = 5 V, TA = 25°C, RF power = −10 dBm, LO power = 0 dBm, ZO = 50 Ω, RBIAS = 1.82 k

AD8342 Rev. 0 | Page 9 of 20 27175055005352-007RF FREQUENCY (MHz)INPUT IP3 (dBm)100 150 200 250 300 350 400 450 500262524232221201918IF = 10MHzIF =