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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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AD608 数据表(PDF) 4 Page - Analog Devices |
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AD608 数据表(HTML) 4 Page - Analog Devices |
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4 / 12 page  REV. B –4– AD608 RF FREQUENCY – MHz 25.0 23.5 22.0 0 50 500 100 150 200 250 300 350 400 450 24.5 24.0 23.0 22.5 Figure 3. Mixer Conversion Gain vs. Frequency PRUP IN VPOS 51.1 Ω 51.1 Ω 0.1µF 1nF 1nF 332 Ω 0.1µF 332 Ω 301 Ω 54.9 Ω IF INPUT 0.1µF 10nF RSSI OUTPUT 100 Ω 18nF 0.1µF LMOP OUT TRIGGER 4.7k U1 – 74HC00 0.1µF U1A U1B 47k Ω 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 AD608 VPS1 COM1 RFHI RFLO MXOP LOHI COM2 VMID PRUP LMOP COM3 RSSI IFLO VPS2 FDBK IFHI Figure 1. IF Test Board Schematic INPUT POWER – dBm 3.0 0 –80 –70 10 –60 –50 –40 –20 –10 0 –30 2.5 2.0 1.5 1.0 0.5 +85 +25 –25 Figure 6. IF RSSI Output vs. Temperature (3 V Supply) IF FREQUENCY – MHz 0 –8 010 80 20 30 40 50 60 70 –1 –4 –5 –6 –7 –2 –3 Figure 4. Mixer IF Port Bandwidth INPUT POWER AT IFHI – dBm 3.0 0 –80 –70 10 –60 –50 –40 –20 –10 0 –30 2.5 2.0 1.5 1.0 0.5 5V 3V Figure 5. IF RSSI Output vs. Supply Voltage (Ambient Temperature) IFHI VPOS RSSI IF TEST BOARD 10.7 MHz FLUKE 6082A SYNTHESIZER DCPS 3V HP3366A DMM HP34401A Figure 7. Test Circuit for IF RSSI Out- put vs. Supply Voltage (Ambient Tem- perature) (Figure 5) and IF RSSI Output vs. Temperature (3 V Supply) (Figure 6) and RSSI Error vs. Input Power (Figure 8) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 AD608 VPS1 COM1 RFHI RFLO MXOP LOHI COM2 VMID PRUP LMOP COM3 RSSI IFLO VPS2 FDBK IFHI VPOS LO IN RF IN IF OUT NC NC 0.1µF 1nF 51.1 Ω 1nF 332 Ω 301 Ω 0.1µF 54.9 Ω 51.1 Ω 1nF 0.1µF 332 Ω 10nF 100 Ω 18nF 18nF 47k Ω NC = NO CONNECT Figure 2. Mixer Test Board Schematic INPUT POWER – dBm 4.0 –4.0 –80 –70 10 –60 –50 –40 –20 –10 0 –30 3.0 0 –1.0 –2.0 –3.0 2.0 1.0 5V 3V Figure 8. RSSI Error vs. Input Power |
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