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AD8363ACPZ-WP Datasheet(PDF) 8 Page - Analog Devices |
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AD8363ACPZ-WP Datasheet(HTML) 8 Page - Analog Devices |
8 / 36 page AD8363 Rev. 0 | Page 8 of 36 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS PIN 1 INDICATOR 1 TCM2/PWDN 2 CHPF 3 VPOS 4 COMM 11 VREF 12 VTGT 10 VPOS 9COMM TOP VIEW (Not to Scale) AD8363 NOTES 1. NC = NO CONNECT Figure 2. Pin Configuration Table 3. Pin Function Descriptions Pin No. Mnemonic Description Equivalent Circuit 1 TCM2/PWDN This is a dual function pin used for controlling the amount of nonlinear intercept temperature compensation at voltages <2.5 V and/or for shutting down the device at voltages >4 V. If the shutdown function is not used, this pin can be connected to the VREF pin through a voltage divider. See Figure 49 2 CHPF Connect this pin to VPOS via a capacitor to determine the −3 dB point of the input signal high-pass filter. Only add a capacitor when operating at frequencies below 10 MHz. See Figure 60 3, 10 VPOS Supply for the Device. Connect these pins to a 5 V power supply. Pin 3 and Pin 10 are not internally connected; therefore, both must connect to the source. N/A 4, 9, EPAD COMM System Common Connection. Connect these pins via low impedance to system common. The exposed paddle is also COMM and should have both a good thermal and good electrical connection to ground. N/A 5 CLPF Connection for Loop Filter Integration (Averaging) Capacitor. Connect a ground-referenced capacitor to this pin. A resistor can be connected in series with this capacitor to improve loop stability and response time. Minimum CLPF value is 390 pF. See Figure 51 6 VOUT Output Pin in Measurement Mode (Error Amplifier Output). In measurement mode, this pin is connected to VSET. This pin can be used to drive a gain control when the device is used in controller mode. See Figure 51 7 VSET The voltage applied to this pin sets the decibel value of the required RF input voltage that results in zero current flow in the loop integrating capacitor pin, CLPF. This pin controls the variable gain amplifier (VGA) gain such that a 50 mV change in VSET reduces the gain by approximately 1 dB. See Figure 50 8 TEMP Temperature Sensor Output. See Figure 45 11 VREF General-Purpose Reference Voltage Output of 2.3 V. See Figure 46 12 VTGT The voltage applied to this pin determines the target power at the input of the RF squaring circuit. The intercept voltage is proportional to the voltage applied to this pin. The use of a lower target voltage increases the crest factor capacity; however, this may affect the system loop response. See Figure 52 13 NC No Connect. N/A 14 INHI This is the RF input pin for frequencies up to and including 2.6 GHz. The RF input signal is normally ac-coupled to this pin through a coupling capacitor. See Figure 44 15 INLO This is the RF input pin for frequencies above 2.6 GHz. The RF input signal is normally ac-coupled to this pin through a coupling capacitor. See Figure 44 16 TCM1 This pin is used to adjust the intercept temperature compensation. Connect this pin to VREF through a voltage divider or to an external dc source. See Figure 48 |
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