PE3238EK PEREGRINE [Peregrine Semiconductor Corp.], PE3238EK Datasheet

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PE3238EK

Manufacturer Part Number
PE3238EK
Description
Manufacturer
PEREGRINE [Peregrine Semiconductor Corp.]
Datasheet
Product Description
Peregrine’s PE3238 is a high performance integer-N PLL
capable of frequency synthesis up to 1.5 GHz. The
superior phase noise performance of the PE3238 is ideal
for applications such as LMDS / MMDS / WLL basestations
and demanding terrestrial systems.
The PE3238 features a 10/11 dual modulus prescaler,
counters and a phase comparator as shown in Figure 1.
Counter values are programmable through either a serial or
parallel interface and can also be directly hard wired. This
programming flexibility, combined with the dual latch
architecture enabling ping-pong loading of the main divide
counter, makes these PLLs well suited as the core for
fractional-N or sigma-delta implementation.
The PE3238 is optimized for terrestrial applications. It 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.
Figure 1. Block Diagram
Document No. 70-0031-03 │ www.psemi.com
Sdata
Pre_en
M(6:0)
A(3:0)
R(3:0)
D(7:0)
F
F
f
r
in
in
8
Primary
20-bit
Latch
20
Prescaler
Secon-
dary
20-bit
Latch
10 / 11
20
20
20
16
R Counter
13
Counter
6
Main
6
©2003-2005 Peregrine Semiconductor Corp. All rights reserved.
Features
1500 MHz UltraCMOS™ Integer-N PLL
for Low Phase Noise Applications
PE3238
1.5 GHz operation
÷10/11 dual modulus prescaler
Internal phase detector
Serial, parallel or hardwired
programmable
Low power ¾ 20 mA at 3 V
Q3236 PLL replacement
Ultra-low phase noise
Product Specification
Detector
Phase
PD_U
PD_D
f
f
p
c
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PE3238EK Summary of contents

Page 1

Product Description Peregrine’s PE3238 is a high performance integer-N PLL capable of frequency synthesis up to 1.5 GHz. The superior phase noise performance of the PE3238 is ideal for applications such as LMDS / MMDS / WLL basestations and demanding ...

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Figure 2. Pin Configurations (Top View ...

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PE3238 Product Specification Table 1. Pin Descriptions (continued) Pin No. Pin Name Interface Mode S_WR Serial 13 D Parallel 4 M Direct 4 Sdata Serial 14 D Parallel 5 M Direct 5 Sclk Serial 15 D Parallel 6 M Direct ...

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Table 1. Pin Descriptions (continued) Pin No. Pin Name Interface Mode 30 f ALL ALL Dout Serial, Parallel 33 V ALL DD 34 Cext ALL 35 V ALL DD 36 PD_D ALL PD_U ...

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PE3238 Product Specification Table 2. Absolute Maximum Ratings Symbol Parameter/Conditions V Supply voltage DD V Voltage on any input into any input into any output O Storage temperature T stg range Table 3. Operating ...

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Table 6. AC Characteristics: V Symbol Parameter Control Interface and Latches (see Figures Serial data clock frequency Clk t Serial clock HIGH time ClkH t Serial clock LOW time ClkL Sdata set-up time to Sclk rising ...

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PE3238 Product Specification Functional Description The PE3238 consists of a prescaler, counters, a phase detector and control logic. The dual modulus prescaler divides the VCO frequency by either 10 or 11, depending on the value of the modulus select. Counters ...

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Main Counter Chain The main counter chain divides the RF input frequency integer derived from the user in defined values in the “M” and “A” counters composed of the 10/11 dual modulus prescaler, modulus ...

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PE3238 Product Specification are clocked serially into the enhancement 7 register on the rising edge of Sclk, MSB (B The enhancement register is double buffered to prevent inadvertent control changes during serial loading, with buffer capture of ...

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Figure 5. Parallel Interface Mode Timing Diagram t DSU [ ] M1_WR M2_WR A_WR E_WR Hop_WR Figure 6. Serial Interface Mode Timing Diagram Sdata E_WR t EC Sclk S_WR t DSU ©2003-2005 Peregrine Semiconductor Corp. All ...

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PE3238 Product Specification Enhancement Register The functions of the enhancement register bits are shown below in Table 9 with all bits active “high”. Table 9. Enhancement Register Bit Functionality Bit Function Bit 0 Reserved** Bit 1 Reserved** Bit 2 Reserved** ...

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Figure 7. PE3238 Typical Phase Noise vs. Offset (VDD = 3.0 V, Temp = 25° C) -60 -70 -80 -90 -100 -110 -120 100 Figure 8. PE3238 Typical Input Sensitivity vs. Frequency ( -10 -20 -30 -40 200 ...

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PE3238 Product Specification Handling Requirements All surface mount products which do not meet Level 1 moisture sensitivity requirements are processed through dry bake and pack procedure. The necessary data is recorded on the caution label of each shipment. The 44-lead ...

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... SEE DETAIL A Table 10. Ordering Information Order Code Part Marking 3238-21 PE3238 PE3238-44PLCC-27A 3238-22 PE3238 PE3238-44PLCC-500C 3238-00 PE3238EK PE3238-44PLCC-EVAL KIT ©2003-2005 Peregrine Semiconductor Corp. All rights reserved. Page 0.045 X 45° 1* PIN 1 2* 0.027 (WIDTH OF LEAD SLOT) 50X 45° 0.180 MAX. ...

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PE3238 Product Specification Sales Offices The Americas Peregrine Semiconductor Corporation 9450 Carroll Park Drive San Diego, CA 92121 Tel: 858-731-9400 Fax: 858-731-9499 Europe Peregrine Semiconductor Europe Bâtiment Maine 13-15 rue des Quatre Vents F-92380 Garches, France Tel: +33-1-47-41-91-73 Fax : ...

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