ADL5501

Rev. B | Page 10 of

28

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

VPOS

6

VRMS

2

FLTR

5

ENBL

3

RFIN

4

COMM

ADL5501

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

VPOS

Supply Voltage Pin. Operational range 2.7 V to 5.5 V.

2

FLTR

Square-Domain Filter Pin. Connection for an external capacitor to lower the corner frequency of the square-

8 kΩ on-chip resistor. The on-chip capacitor provides filtering with an approximate 100 kHz corner frequency.

For simple waveforms, no further filtering of the demodulated signal is required.

3

RFIN

Signal Input Pin. Internally ac-coupled after internal termination resistance. Nominal 50 Ω input impedance.

4

COMM

Device Ground Pin.

5

ENBL

current less than 1 μA.

6

VRMS

Output Pin. Rail-to-rail voltage output with limited 3 mA current drive capability. The output has an internal

100 Ω series resistance. High resistive loads are recommended to preserve output swing.