adl5902 Analog Devices, Inc., adl5902 Datasheet - Page 5

• Manufacturer Part Number: adl5902
• Description: 100 Mhz To 9 Ghz 60 Db Trupwr ? Detector
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 2. Pin Function Descriptions
Pin No.
1
2, 13, 16
3, 10
4, 9, 17
5
6
7
8
11
12
14
15
17
(EPAD)
Mnemonic
TADJ/PWDN
NC
VPOS
COMM
CLPF
VOUT
VSET
TEMP
VREF
VTGT
INHI
INLO
Exposed
Pad (EPAD)
Description
This is a dual function pin used for controlling the amount of 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.
No Connect.
Supply for the Device. Connect this pin to a 5 V power supply. Pin 3 and Pin 10 are not internally
connected; therefore, both must connect to the source.
System Common Connection. Connect this pin 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.
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.
Output Pin in Measurement Mode (Error Amplifier Output). In measurement mode, this pin is
normally connected directly to VSET. This pin can be used to drive a gain control when the
device is used in controller mode.
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.
Temperature Sensor Output.
General-Purpose Reference Voltage Output of 2.3 V.
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.
This is nominally set to 1V.
This is a RF input pin. For a 50 ohm input impedance, use a 60.4 ohm resistor to ground. There
must be a series (DC block) capacitor between the pin and the 60.4 ohm termination resistor. If
using INLO as RF input, place a DC block capacitor on INHI to ground.
This is a RF input pin. For a 50 ohm input impedance, use a 60.4 ohm resistor to ground. There
must be a series (DC block) capacitor between the pin and the 60.4 ohm termination resistor. If
using INHI as RF input, place a DC block capacitor on INLO to ground.
The paddle should be connected to both a thermal and electrical ground.
NOTES
1. NC = NO CONNECT
TADJ/PWDN 1
COMM 4
VPOS 3
NC 2
Figure 2. Pin Configuration
Rev. PreD | Page 5 of 11
(Not to Scale)
AD8363
TOP VIEW
PIN 1
INDICATOR
12 VTGT
11 VREF
10 VPOS
9 COMM
ADL5902