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Document No. 70-0050-04 │ 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 PE3503 is a high performance monolithic UltraCMOS™
prescaler with a fixed divide ratio of 8. Its operating frequency
range is 1500 MHz to 3500 MHz. The PE3503 operates on a
nominal 3 V supply and draws only 12 mA. It is packaged in a
small 8-lead MSOP and is ideal for microwave PLL synthesis
solutions.

The PE3503 is manufactured in Peregrine’s patented Ultra
Thin Silicon (UTSi©) CMOS process, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
Product Specification
3500 MHz Low Power UltraCMOS™
Divide-by-8 Prescaler
Product Description
Figure 1. Functional Schematic Diagram
PE3503
Features
• High-frequency operation: 1500 MHz
to 3500 MHz
• Fixed divide ratio of 8
• Low-power operation: 12 mA typical
@ 3 V across frequency
• Small package: 8-lead MSOP
Table 1. Electrical Specifications (Z
S
= Z
L
= 50 Ω )
Figure 2. Package Type
8-lead MSOP
D
QB
Q
CLK
D
QB
Q
CLK
Pre-Amp
Output
Buffer
IN
OUT
D
QB
Q
CLK
Parameter Conditions Minimum Typical Maximum Units
Supply Voltage 2.85 3.0 3.15 V
Supply Current 12 17 mA
Frequency Range (FIN) 1500 3500 MHz
Input Power (PIN) 1500 MHz ≤ F
in
≤ 3200 MHz -10 +5 dBm
3200 MHz < F
in
≤ 3500 MHz 0 +5 dBm
Output Power -5 dBm