PE35400A-G datasheet(4/13 Pages) PSEMI

4 / 13 page

PE35400

Divide-by-4 Prescaler

Page 4

DOC-64872-2 – (10/2015)

www.psemi.com

Device Functional Considerations

The PE35400 divides a 3.0–13.5 GHz input signal by four, producing a 750 MHz to 3.375 GHz output signal. In

order for the prescaler to work properly, several conditions need to be adhered to. It is crucial that VBYPS and VDD

are supplied with bypass capacitors to ground. In addition, the output signal RFOUT needs to be AC coupled via

an external capacitor, as shown in Figure 2. The input frequency range is selected by the value of RBIAS

according to Figure 3. The ground pattern on the board should be made as wide as possible to minimize ground

impedance.

Figure 2 • Circuit Block Diagram for PE35400(*)

Note: * For optimal performance, the following bond wire configuration is recommended. VBYPS: 2 bond wires per pad. RFIN: 1 bond wire. GND: 3

bond wires per pad. RFOUT: 2 bond wires. VDD: 2 bond wires. RBIAS: 1 bond wire.

RBIAS

10 pF

6.8 pF

50Ω

0.01 μF

10 pF

VBYPS

GND

Transmission

Line

Transmission

Line

Die ID

VDD

RFIN

RFOUT

GND

VDD

VBYPS

PE35400A-G Datasheet(PDF) 4 Page - Peregrine Semiconductor