POWER-POLE® Series

The POWER-POLE® Series of tunable filters provides improved RF performance with increased power handling capability and the lowest insertion loss for a given bandwidth. The product line includes several standard designs in various frequencies to support almost any application. Approximate performance is summarized in the POWER-POLE Series Selection Guide.

Specifications

Frequency Coverage (5 bands): 10 MHz to 400 MHz
Input/Output Impedance: 50 Ω
Inband RF Power Handling: refer to chart
Inband Third Order Intercept Point:
+50 dBm (input)
Inband Second Order Intercept Point: +100 dBm (input)
Tuning Control: 8 bit parallel
Tuning Speed: 20 µS >
DC Power: +5 VDC @ 400 mA to 1.5 A
Operating Temperature Range: -40 to + 65°C
Center Frequency Drift: 80 PPM/°C
 Size (in/mm): 2.6 x 3.0 x 4.0 / 66.7 x 76.2 x 101.6
 Weight (ozs/kg): 18.7 / .5

The following plots illustrate approximate performance (not representative of all frequency ranges)
  
  
The following plots illustrate approximate insertion loss and bandwidth trends across a given frequency band, and the differences between various bands:

POWER-30-90-3


POWER-225-400-4


The following plot illustrates RF power handling vs. % bandwidth:

Important Application Notes:

While changing RF center frequencies, RF input power must be reduced to < +20 dBm. These filters will not support “Hot RF Switching Conditions”. Please contact the factory in regards to custom features.
Maximum strobe rate is 2kHz; Actual rate is dependent upon frequency band.

The Selection Guide illustrates approximate performance; table values are shown as average/maximum.

Frequency
Range
Suffix
Insertion Loss
% Bandwidth 
(3dB)
Shape Factor (30 dB / 3 dB)
Overall Low Side High Side
10 to 30
MHz
-1
 
 
 
 
 
-2
 
 
 
 
 
-3
-4
 
 
 
 
 
-5
 
 
 
 
 
30 to 90
MHz
-1
0.8/1.2
8.4/9.5
 
 
 
-2
1.6/2.4
4.3/4.8
6.9/7.6
9.3/10.4
4.5/4.7
-3
2.9/4.3
2.8/3.2
6.0/6.9
7.0/8.9
5.0/5.8
-4
3.4/4.6
2.2/2.5
 
 
 
-5
4.4/5.8
1.8/1.9
 
 
 
90 to 200
MHz
-1
0.8/1.2
8.6/9.2
6.0/6.5
7.5/8.3
4.6/4.7
-2
1.2/2.3
4.2/4.8
 
 
 
-3
 2.2/3.5
 2.7/3.2
 
 
 
-4
 3.3/5.0
 2.2/2.5
 
 
 
-5
 4.0/5.5
 1.8/2.0
 
 
 
200 to 400
MHz
-1
 
 
 
 
 
-2
1.3/2.2
4.2/4.8
5.6/6.1
6.4/7.0
4.8/5.3
-3
1.7/3.5
2.7/3.1
 
 
 
-4
 2.4/3.8
 2.2/2.5
 
 
 
-5
 
 
 
 
 
225 to 400
MHz
-1
0.6/0.9
8.2/9.1
5.8/6.0
7.0/7.3
4.6/4.7
-2
1.0/2.2
4.2/4.8
 
 
 
-3
1.7/3.2
2.7/3.1
 
 
 
-4
2.3/3.8
2.1/2.5
5.7/6.3
6.1/7.0
5.3/5.7
-5
2.5/4.2
1.8/2.0
5.9/6.2
6.4/6.2
5.4/5.8
Series    Frequency(MHz)    Insertion Loss    Connector Type   Options 
POWER –  30-90 –  –  SMA –  B
                 
    10-30     SMA (Female)    B
    30-90         C
    90-200          
    200-400          
    225-400            
    400-700            
  700-1000

 

Available Options:
B. Serial Interface
C. Custom Frequency Bands (Specify START and STOP frequencies in MHz)

Frequency Tuning Address

Power-Pole Series filters utilize an eight-bit scheme for tune words to digitally control tuning of the center frequency. There are 250 equally spaced tuning increments across each standard filter band, resulting in 251 tune words from 00000000 to 11111010. The last 5 tune words are reserved for housekeeping functions. For further information on how to calculate tune words, please see the Frequency Tuning Address Application Note.

Interface Options

The filter comes standard with an 8-bit parallel interface, although a serial interface can be specified as an option.

DC Control Interface Characteristics

Symbol Parameter Condition Min Max Units
VIL Input Low Voltage Control Signals except A0 – A7 0.0 0.2 Vcc V
VIH Input High Voltage Control Signals except A0 – A7 0.7 Vcc Vcc V
VIL1 Input Low Voltage A0 – A7 0.0 0.15Vcc V
VIH1 Input High Voltage A0 – A7 0.7 Vcc Vcc V

Switching Characteristics

Vcc = +5VDC, ± 10%; T= -40°C to +85°C

 

Symbol Parameter Min Max Units
tS Setup Time, A0-A7 to STB 200 nS
tH Hold Time, A0-A7 from STB 6 µS
tSH STB High Time 25 µS
tW STB Pulse Width 20 nS
tDW Strobe D well Time (From STB Falling edge to next STB Falling edge) 500 nS
tACC Access time from STB to f0 15 nS


Strobe

The filter is tuned within 15µS to the frequency designated by the tuneword existing on the eight control bit lines when the STB line is brought low. Once strobed, data existing on the tune control lines is ignored until strobed again. Maximum strobe rate is 2 kHz; Actual rate is dependent upon frequency band.

Temperature Effects

Over the –40 to +65°C temperature range, filters will exhibit a temperature drift of less than 80 PPM/°C, or a total of less than ±0.5% of the center frequency.

Parallel Interface

 

PIN#  REF DES  Description  Max Ratings 
A2 Tune Bit 2

+6 VDC 

A3 Tune Bit 3
A4 Tune Bit 4
A5 Tune Bit 5 
5 A6 Tune Bit 6
A7  Tune Bit 7 (MSB)
GND Ground  
Vcc +5VDC, ±10% +6 VDC 
GND Ground  
10  No Connect  
11  GND Ground  
12  GND  Ground   
13  STB Strobe +125 VDC
14  A0 Tune Bit 0 (LSB)
15  A1 Tune Bit 1

 

Serial Interface

 

PIN#  REF DES  Description  Max Ratings 
DO  Serial Data Out +6 VDC 
No Connect
No Connect
No Connect
No Connect
No Connect
GND  Ground   
Vcc  +5 VCD, +-10%  +6 VDC 
GND  Ground   
10  No Connect
11  GND  Ground   
12  GND  Ground   
13  STB  Strobe  +6 VDC 
14  SER CLK Serial Clock
15  DI  Serial Data In

 

Contact Sales

The Pole/Zero Sales and Marketing team is a highly qualified group of engineers who can relate to your design problems and provide expert assistance. They make sure you get the right components at the right time and price.

Feel free to call upon our sales team (513) 870-9060 at any time. They are here to assist you and are happy to do so.