ADF4150 AD [Analog Devices], ADF4150 Datasheet - Page 8

• Manufacturer Part Number: ADF4150
• Description: Fractional-N/Integer-N PLL Synthesizer
• Manufacturer: AD [Analog Devices]

Pin No.
22
23
24
25
ADF4150
Mnemonic
SDV
SD
R
EP
SET
GND
DD
Description
Power Supply Pin for the Digital Sigma-Delta (Σ-Δ) Modulator. This pin should be the same voltage as AV
Decoupling capacitors to the ground plane are to be placed as close as possible to this pin.
Digital Σ-Δ Modulator Ground. Ground return path for the Σ-Δ modulator.
Connecting a resistor between this pin and GND sets the charge pump output current. The nominal voltage
bias at the R
where:
R
I
The exposed pad must be connected to GND.
CP
SET
= 5 mA.
= 5.1 kΩ.
I
CP
=
R
23.9
SET
SET
pin is 0.48 V. The relationship between I
Rev. 0 | Page 8 of 28
CP
and R
SET
is
DD
.