856687
456 MHz SAW Filter
Applications
General purpose wireless
Wireless infrastructure
3G, 4G, Multistandard
Functional Block Diagram Bal/SE Functional Block Diagram Bal/Bal
Top view
Gnd Gnd Gnd
Gnd
Gnd Gnd
9 8
7 9 8
7
Gnd Output -
Input + 10 6 Input + 10 6
Gnd
Gnd 11 5 Gnd
5
11 Gnd
Input - 12
4
Input - 12 Output
4
1 2 3
1 3
2
Gnd Gnd Gnd
Gnd Gnd Gnd
Product Features Pin Configuration
Pin # Bal/Bal Description
Usable bandwidth 19 MHz 10 Input +
12 Input -
Low loss
4 Output +
High attenuation
6 Output -
Low EVM
1,2,3,5, 7, 8, 9, 11 Ground
Balanced-Balanced or Balanced-Single ended operation
Ceramic Surface Mount Package (SMP)
Pin # Bal/SE Description
Small Size: 7.01 x 5.51 x 1.70 mm
10 Input +
12 Input -
Excellent power handling
4 Output
Hermetic RoHS compliant, Pb-free
1,2,3,5,6, 7, 8, 9, 11 Ground
General Description Ordering Information
The 856687 is a high performance IF SAW filter developed
Part No. Description
for 4G and Multistandard infrastructure applications.
856687 packaged part
856687-EVB evaluation board
It features low loss coupled with excellent in-band
Standard T/R size = 3000 units/reel.
characteristics and power handling capability. Developed to
minimize system bit-error rates, this filter has a typical EVM
contribution of <2%.
Data Sheet: Rev D 7/27/11 - 1 of 9 - Disclaimer: Subject to change without notice e
2011 TriQuint Semiconductor, Inc. Connecting the Digital World to the Global Network
856687
456 MHz SAW Filter
Specifications Bal/Bal
(1, 2)
Electrical Specifications
(3)
Specified Temperature Range: -33 to +85 C
(4) (5)
Parameter Conditions Min Typical Max Units
Center Frequency - 456 - MHz
Insertion Loss at 456 MHz - 10 12.5 dB
(6)
Amplitude Variation 446.5 465.5 MHz - 0.4 1.0 dB p-p
Absolute Group Delay At Center Frequency - 0.37 0.6 s
(6)
Group Delay Variation 446.5 465.5 MHz - 28 100 ns p-p
Time side-lobe response attenuation (1.0 500 s) 40 44 - dB
IIP3 Tones 5 MHZ separated power 45 50 - dBm
> 5dBm per tone
(7)
EVM - 1.5 3 %
(8)
Absolute Attenuation
10.0 384.0 MHz 55 64 - dB
384.0 405.0 MHz 55 62 - dB
405.0 425.3 MHz 40 49 - dB
425.3 433.0 MHz 30 45 - dB
433.0 439.0 MHz 25 42 - dB
439.0 439.25 MHz 20 41 - dB
439.25 439.75 MHz 15 34 - dB
439.75 440.50 MHz 10 22 - dB
440.50 441.50 MHz 5 10 - dB
470.50 471.50 MHz 5 12 - dB
471.50 472.25 MHz 10 22 - dB
472.25 472.75 MHz 15 37 - dB
472.75 473.00 MHz 20 41 - dB
473.00 479.00 MHz 25 42 - dB
479.00 486.70 MHz 30 47 - dB
486.70 507.00 MHz 40 51 - dB
507.00 528.00 MHz 55 65 - dB
528.00 1000.0 MHz 55 70 - dB
(9)
Source Impedance (balanced) - 200 -
(9)
Load Impedance (balanced) - 200 -
Notes:
1. All specifications are based on the TriQuint schematic for the main reference design shown on page 3
2. An external impedance matching network with 2% tolerance will be necessary to achieve the proposed specifications
3. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
4. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
5. Typical values are based on average measurements at room temperature
6. These Variations are defined as the difference between the lowest loss and the highest loss within the defined frequency points
7. Measured with an RRC filtered QPSK modulated signal with a BW of 3.84 MHz place anywhere within 449 to 463 MHz
8. Relative to insertion loss at center frequency
9. This is the optimum impedance in order to achieve the performance shown
Data Sheet: Rev D 7/27/11 - 2 of 9 - Disclaimer: Subject to change without notice e
2011 TriQuint Semiconductor, Inc. Connecting the Digital World to the Global Network