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AD8317 Datasheet(PDF) 7 Page - Analog Devices |
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AD8317 Datasheet(HTML) 7 Page - Analog Devices |
7 / 20 page AD8317 Rev. 0 | Page 7 of 20 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 1 INHI 2 COMM 3 CLPF 4 VSET 8 INLO 7 VPOS 6 TADJ 5 VOUT TOP VIEW (Not to Scale) AD8317 Figure 2. Pin Configuration Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 INHI RF Input. Nominal input range of −50 dBm to 0 dBm, re: 50 Ω; ac-coupled RF input. 2 COMM Device Common. Connect to a low impedance ground plane. 3 CLPF Loop Filter Capacitor. In measurement mode, this capacitor sets the pulse response time and video bandwidth. In controller mode, the capacitance on this node sets the response time of the error amplifier/integrator. 4 VSET Setpoint Control Input for Controller Mode or Feedback Input for Measurement Mode. 5 VOUT Measurement and Controller Output. In measurement mode, VOUT provides a decreasing linear-in dB representation of the RF input signal amplitude. In controller mode, VOUT is used to control the gain of a VGA or VVA with a positive gain sense (increasing voltage increases gain). 6 TADJ Temperature Compensation Adjustment. Frequency-dependent temperature compensation is set by connecting a ground-referenced resistor to this pin. 7 VPOS Positive Supply Voltage: 3.0 V to 5.5 V. 8 INLO RF Common for INHI. AC-coupled RF common. Paddle Internally connected to COMM; solder to a low impedance ground plane. |
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