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AMMP-6532 Datasheet(PDF) 6 Page - AVAGO TECHNOLOGIES LIMITED |
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AMMP-6532 Datasheet(HTML) 6 Page - AVAGO TECHNOLOGIES LIMITED |
6 / 7 page 6 Frequency (GHz) -30 -20 -10 0 10 15 20 25 30 35 25C -40C 85C 0 1 2 3 4 5 20 22 24 26 28 30 32 Frequency(GHz) 25C -40C 85C Figure 13. Return Loss at LO over Temp Figure 14. Noise Figure over Temp Biasing and Operation The AMMP-6532 is normally biased with a positive drain supply connected to the VDD pin and a negative gate voltage connected to the Vg pin through bypass ca- pacitors as shown in Figure 17. The recommended drain supply voltage is 3 V and gate bias voltage is -1V. The cor- responding currents are 83mA and 0.1mA respectively. The typical required LO level is +15dBm and it should come from a low noise driver to ensure that overall Front End NF is low. The image rejection performance is dependent on the selection of the IF quadrature hybrid. The performance of the IF hybrid as well as the phase balance and VSWR of the interface to the AMMP-6532 will affect the overall front end performance. It should be noted that the placement of the external IF Hybrid coupler should be as symmetrical as possible in regard to the two IF outputs to obtain optimal performance. TOP VIEW PACKAGE BASE: GND IF1 NC Vdd Vg LO RF NC IF2 USB IF 1-3.5GHz LSB RF LSBUSB LO IF IF Vdd Vg LO +15dBm 1000pF 1000pF Figure 15. Application of Receiver with IF Balun The NF will be lowest when the IF hybrid’s phase and magnitude imbalance are smallest since noise from image signal is greatly rejected. Theoretically, IF frequencies can be as low as DC. However, when direct conversion is used (IF=DC), a so-called phenomenon DC-offset could occur at the two IF outputs. In most practical applications, IF should be more than a few hundreds KHz to avoid DC-offset correc- tion. Refer the Absolute Maximum Ratings table for allowed DC and thermal condition. |
Similar Part No. - AMMP-6532 |
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Similar Description - AMMP-6532 |
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