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AD8363ACPZ-WP Datasheet(PDF) 6 Page - Analog Devices |
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AD8363ACPZ-WP Datasheet(HTML) 6 Page - Analog Devices |
6 / 14 page AD8363 Preliminary Technical Data Rev. PrB| Page 6 of 14 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS 12 VTGT 11 VREF 10 VPOS 9 COMM 1 TCM2 2 CHPF 3 VPOS 4 COMM 13 NCON 8 TEMP 14 INHI 7 VSET 15 INLO 6 VOUT 16 TCM1 5 CLPF AD8363 Figure 2. Pin Configuration Table 3. Pin Function Descriptions Pin No. Mnemonic Description 1 TCM2/PWDN A dual function pin used for controlling the amount of nonlinear intercept temperature compensation and/or shutting down the device. This pin can be connected to the VREF pin through a voltage divider if the shut down function is not used 2 CHPF Connect to VPOS via a capacitor to determine -3 dB point of the input signal high-pass filter. 3, 10 VPOS Supply for the device. Connect to +5 V power supply. 4, 9 COMM System Common Connection. Connect via low impedance to system common. 5 CLPF Connection for Loop Filter Integration (Averaging) Capacitor. Connect a ground- referenced capacitor to this pin. A resistor may be connected in series with this capacitor to improve loop stability and response time. 6 VOUT Output pin in Measurement Mode (error Amplifier output). In measurement mode, normally connected directly to VSET. This pin can be used to drive a gain control when the device is used in controller mode. 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. The controls the VGA gain such that a 50mV change in VSET reduces the gain by approximately 1dB. 8 TEMP Temperature Sensor Output. 11 VREF General-Purpose Reference Voltage Output of 1.16 V. 12 VTGT 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. 13 NCON Not connected. 14 INHI Single-ended RF input pin. RF input signal is normally AC coupled to this pin through a coupling capacitor. 15 INLO Grounded for single ended input 16 TCM1 Connect to VREF through a voltage divider or an external DC source. Is used to adjust Intercept temperature compensation (3K impedance) Paddle Connect via low impedance to system common |
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