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ERF-5W™ Series (Single & Dual)

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The new ERF-5W™ filter takes Pole/Zero’s MINI-ERF® technology to a higher level of RF power handling, with 5W (average) in-band power handling, and covering the entire military tactical radio tuning range of 30-520 MHz in one integrated package. This tunability is accomplished by the use of three poles of selectivity, multiple internal tunable filters along with high performance PIN diode RF band select switches. The tunable filters are designed to minimize size and power consumption, while maintaining high RF power handling and linearity characteristics. Serial control is accomplished via a standard Serial Peripheral Interface (SPI)-based bus.

  • Specifications
  • Performance
  • Mechanical Details
  • Interface and Control Notes
  • Pinouts & Ratings
  • Datasheet
Frequency Coverage (12 bands): 30 MHz to 520 MHz
Input/Output Impedance: 50 Ω
Inband Input/Output VSWR: 1.65:1 max
Insertion Loss: 2.5dB +/- 1 dB typ
Percent Bandwidth: 10% typ
Selectivity @ Fe +/- 20%: 35dB typical
Inband RF Power Handling: 5 watts (input) avg
Out of Band RF Power Handling: Up to 10 watts (input)
Inband Third Order Intercept Point:
+47 dBm (input)
Tuning Control:
Parallel or Serial
Tuning Speed: 25 μsec typical, 50 μsec max
DC Power: = +5 VDC @ 1.5A max
Operating Temperature Range: = -40 to +85°C

Note 1:

Out of band RF power handling refers to signals thatare at least twenty percent (20%) removed from the tuned center frequency andis frequency dependent: 5W signals applied between 30 and 75 MHz, 8W from 75 to 175 MHz, and 10 W from 175 to 520 MHz

The following plot(s) illustrate approximate performance:



General Information
The 5W-ERF requires a single +5vdc analog supply and a +1.65 to +5.5vdc digital supply. These supply voltages should be adequately filtered as noise present on these pins will influence the RF signal purity.


S01S02 5W Mech Outline
Notes: 1. First number indicates maximum inband power levels and second number indicates maximum out of band RF power levels either in CW or composite peak for multi-tones.
Digital Interface Information

With the “PAR/NSER” input low, the unit is in serial control mode. When it is high, the filter is in parallel control mode. Maximum input data rate is 7Mhz. In either mode, 2 bytes of data are required. One selects the internal frequency band and the other selects the tuneword (251 tune frequencies within each band). All data input pins are CMOS/TTL compliant. Logic high/low levels are as follows:

Symbol Parameter VCCD Minimum Maximum Unit
VIH
High-level input voltage
1.65Vto 1.95V VCCD x 0.65 VCCD
V
2.3 V to 2.7 V 1.7
3 V to 3.6 V
2
4.5 V to 5.5 V VCCD x 0.7
VIL
Low-level input voltage
1.65 V to 1.95 V   VCCD x 0.35 V
    2.3 V to 2.7 V
  0.7
 
    3 V to 3.6 V
  0.8
 
    4.5 V to 5.5 V
  VCCI x 0.3
 

PIN# REF DES Description Max Ratings
1-6 NC
-----------------------
7 GND Ground
8 NC
9 GND Ground
10 SEL_BAND_1 Band Select Pin (MSb) VCCD - 0.2VDC
 11     -----------------------
12 GND Ground
13 A7/Serial Clock IN Tune Bit 7/ Serial Clock IN VCCD - 0.2VDC
14 A5/MOSI
Tune Bit 5/ Serial Data IN
15 A3 Tune Bit 3
16 A1 Tune Bit 1
17 Tune Ready Output Tune Ready Output
18 VCCD Digital Interface Supply 1.6 to 5.5 VDC interface
voltage (0.1 MA MAX).
For 3.3V Interface use
3.3VDC
19 VCCA +5VDC
+5.5V (1.5A max.)
20-23 NC   ----------------- 
24-25 GND  Ground 
26 NC    ----------------- 
27 GND  Ground  -----------------
28 SEL_BAND_0 Band Select Pin (LSb)  VCCD - 0.2VDC
 29  NC   -----------------
30 STBn  nStrobe  VCCD - 0.2VDC
31 A6  Tune Bit 6 
32 A4/CS_LD  Tune Bit 4/SPI Chip Select/Load Data
33 A2  Tune Bit 2 
34 A0  Tune Bit 0 (LSB) 
 35 PAR/NSER  Parallel/Serial Mode Control
 36 VCCD  Digital Interface Supply See PIN 18 Comments
37 VCCA +5 VDC +5.5 VDC (1.5A max.)

ERF-5W Downloadable Datasheet


5W-30-520-10-M0X, 30 – 520 MHz, 5 Watt, Tunable Filter

Typical Applications

·   UAVs

·   Applications where small size, high power, and high performance are required

·   Military Radios

·   Military Radar

·   SATCOM

·   Test and Measurement Equipment

·   Industrial and Medical Equipment

Features

·   Typical features are listed below but are not exhaustive

·   37 dBm CW continuous in-band power handling

·   40 dBm CW continuous out-of-band power handling[1]

·   47 dBm IIP3 typical

·   25 µs typical tune time

·   18 dBc typical selectivity at  ± 10%

·   2.5 dB typical insertion loss



[1]Out of band RF power handling refers to signals that are at least twenty percent (20%) removed from the tuned center frequency and is frequency dependent: 5W signals applied between 30 and 75 MHz, 8W from 75 to 175 MHz, and 10 W from 175 to 520 MHz.


Functional Diagram

5W-ERF 3

Description

The new ERF-5W™ filter takes Pole/Zero’s®MINI-ERF technology to a higher level of RF power handling, with 5W (average)in-band power handling, and covering the entire military tactical radio tuning range of 30 to 520 MHz in one integrated package. This tuning range is accomplished by the use of three poles of selectivity and multiple internal tunable filters along with high performance RF band select switches. The tunable filters are designed to minimize size and power consumption, while maintaining high RF power handling and linearity characteristics. Interface (SPI)-based bus. ERF-5W™ filters are available in both single and dual-channel configurations.


5W-ERF 4

1.0 Ordering Information

                                      Table 1.Ordering Options

5W-ERF 5

Note: Options may be limited to particular frequency bands and/or configurations. Consult Pole/Zero for your application.

Example product number: Product # 5W-30-520-10-M01

2.0 Block Diagram

5W-ERF 6

3.0 Pinout and Functional Information

3.1 Pinout

5W-ERF 7

3.2 Pin Description

5W-ERF 8

4.0 Specifications

4.1 Absolute Maximum Ratings[1]

Voltages are referenced to GND(ground = 0V). Operating at room temperature (unless otherwise noted).


5W-ERF 9

4.2 Handling Ratings

5W-ERF 10

4.3 Recommended Operating Conditions

5W-ERF 11

4.4 Electrical Characteristics

All specifications at TA= 23 °C, Vcc = 5.0 V, unless otherwise noted.

5W-ERF 12

4.5 Typical Characteristics

5W-ERF 13

4.6 Timing Requirements

4.6.1 SPI Interface Timing

The SPI tune interface is a standard SPI interface with Mode = 0 (CPOL = 0, CPHA = 0). There are always 16 data bits loaded for the tune command. Any bits that do not affect the frequency offset of the filter should always be set to 0. The interface receives the data most significant byte and most significant bit first.

 5W-ERF 14

Figure 9. SerialTiming Diagram


Table 3. SPI Timing Characteristics

VCC= +5.0 V ± 5%, VCCD = +5.0 V ± 5%, GND = 0 V

5W-ERF 15

4.6.2 Parallel Interface Timing

The parallel tune command interface is a 10-bit wide synchronous parallel interface. Band 1 is the most significant band bit and Band 0 is the least significant band bit. A7 is the most significant tune offset bit and A0 is the least significant tune offset bit.Keeping PAR/  pulled to +3.3 V will enable the parallel tune command interface.

5W-ERF 16

Table 4.Parallel Timing Characteristics

VCC= +5.0 V ± 5%, VCCD = +5.0 V ± 5%, GND = 0 V

5W-ERF 17


5.0 Functional Description

5.1 Tune Commands

In serial mode, the tune command is a two-byte tune word.The first byte (MSB) is the band the filter should tune to. The second byte(LSB) is the frequency offset in the chosen band. In parallel mode, the upper 6 bits from the MSB are discarded and the MSb of the band byte is loaded on the BAND 1 pin and the LSb of the band byte is loaded on the BAND 0 pin. The tune offset is loaded on the A7-A0 pins.


5W-ERF 30



5W-ERF 18

6.0 Detailed Description

6.1 Digital Interface

5W-ERF 19

6.2 Example Tune Commands

5W-ERF 31


6.3 Additional Interface Detail

Table 9. Additional Pin Information

5W-ERF 20

7.0 Tune Time

Tune times include internal processing of the tune command data and the 90% settled RF amplitude response time of the filter. This time excludes the time required to load the tune command into the filter. Low level signal measurements were utilized to show the receive tune time that can be expected.

In addition, RF power in excess of +20 dBm is considered to be “hot switching” of the filter. While portions of the data taken in “Table10. Typical RF Tune Times”was taken via “hot switching,” this does not imply that tuning operation of the filter into these levels can be done reliably. It is recommended that RF is less than +20 dBm during a tune event.

5W-ERF 21

8.0 Package Information

8.1 Package Detail

5W-ERF 22

5W-ERF 23

9.0 Application Information

9.1 Parallel Interface

5W-ERF 24

9.2 Serial Interface (SPI)

5W-ERF 25

10.0 Safety Notes

10.1 Handling Information

5W-ERF 26

5W-ERF 27

5W-ERF 28

11.0 Legal Information

11.1 Disclaimers

Limited warranty and liability –Information in this document is believed to be accurate and reliable.  Pole/Zero and its suppliers disclaim allwarranties, whether express or implied, including implied warranties ofmerchantability, fitness for a particular purpose, and non-infringement. Theentire risk arising out of use or performance of this information remains withLicensee. Pole/Zero and its suppliers do not make any representations regardingthe results of the use of the information in this document.

To the maximum extent permitted by applicable law, in no event will Pole/Zero or its directors, employees,distributors, licensors, suppliers, agents or resellers or suppliers(“Pole/Zero parties”) be liable for any indirect, special, incidental,consequential, or exemplary damages, even if such party has been advised of the possibility thereof. The Pole/Zero parties’ entire liability will not exceed the sum of the replacement of defective product or provision of a reasonably similar product, at Pole/Zero’s discretion. Some jurisdictions do not allow the exclusion or limitation of incidental, consequential or special damages, so this exclusion and limitation may not be applicable to Licensee. The Pole/Zero Parties will not be liable for any claims or damages arising out of content provided by Licensee.

11.2 Right to Make Changes

Pole/Zero Corporation reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice.  This document supersedes and replaces all information supplied prior to the publication hereof.

12.0 Learn More

For additional information, please visit /polezero

13.0 Contact and Support

Pole Zero Corporate Office

5558 Union Centre Drive

West Chester, OH 45069, USA

513-870-9060 (Phone)


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