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UPC8172TB Datasheet(PDF) 7 Page - Renesas Technology Corp |
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UPC8172TB Datasheet(HTML) 7 Page - Renesas Technology Corp |
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7 / 30 page  Data Sheet P14729EJ2V0DS00 5 µµµµPC8172TB 1. PIN EXPLANATION Pin No. Pin Name Applied Voltage (V) Pin Voltage (V) Note Function and Explanation Equivalent Circuit 1 IFinput − 1.4 This pin is IF input to double bal- anced mixer (DBM). The input is designed as high impedance. The circuit contributes to sup- press spurious signal. Also this symmetrical circuit can keep specified performance insensitive to process-condition distribution. For above reason, double bal- anced mixer is adopted. 2GND GND − GND pin. Ground pattern on the board should be formed as wide as possible. Track Length should be kept as short as possible to minimize ground impedance. 3 LOinput − 2.3 Local input pin. Recommendable input level is −10 to 0 dBm. 5VCC 2.7 to 3.3 − Supply voltage pin. 6 RFoutput Same bias as VCC through external inductor − This pin is RF output from DBM. This pin is designed as open collector. Due to the high imped- ance output, this pin should be externally equipped with LC matching circuit to next stage. 4PS VCC/GND − Power save control pin. Bias controls operation as follows. Note Each pin voltage is measured with VCC = VPS = VRFout = 3.0 V. Pin bias Control VCC Operation GND Power Save 3 5 6 1 2 5 4 2 VCC GND |
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