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Document No. 70-0111-03 │ www.psemi.com ©2005 Peregrine Semiconductor Corp. All rights reserved.
V
DD
= 3.0 V, -40° C ≤ T
A
≤ 85° C, unless otherwise specified
The PE3501 is a high-performance dynamic UltraCMOS™
prescaler with a fixed divide ratio of 2. Its operating frequency
range is 400 MHz to 3.5 GHz. The PE3501 operates on a
nominal 3 V supply and draws only 12 mA. It is packaged in a
small 8-lead TSSOP and is ideal for frequency scaling and
microwave PLL synthesis solutions.

The PE3501 is manufactured on Peregrine’s UltraCMOS™
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Product Specification
3500 MHz Low Power UltraCMOS™
Divide-by-2 Prescaler
Product Description
Figure 1. Functional Schematic Diagram
PE3501
Features
• High-frequency operation:
400 MHz to 3500 MHz
• Fixed divide ratio of 2
• Low-power operation: 12 mA typical
@ 3 V
• Small package: 8-lead TSSOP
• Low cost
Table 1. Electrical Specifications (Z
S
= Z
L
= 50 Ω )
Figure 2. Package Type
8-lead TSSOP
PREAMP
DRIVER OUTPUT BUFFER
D Q
CLK
DEC QB
OFF-CHIP
BYPASS
Fin
Fout
Parameter Conditions Minimum Typical Maximum Units
Supply Voltage 2.85 3.0 3.15 V
Supply Current 12 15 mA
Input Frequency (Fin) 400 3500 MHz
Input Power (Pin)
400 MHz ≤ F
in
≤ 3000 MHz
3000 MHz < F
in
≤ 3500 MHz
-10
0

+10
+10
dBm
dBm
Output Power (Pout)
400 MHz ≤ F
in
≤ 3000 MHz
3000 MHz < F
in
≤ 3500 MHz
-10
-15

dBm
dBm