856908
836.5/881.5 MHz SAW Duplexer
Applications
General purpose wireless
Femtocells
Repeaters
Data cards and dongles
Product Features
Usable bandwidth 25 MHz
No matching required for operation at 50Ω
Excellent rejection for Bluetooth and GPS operation
Suitable for Automotive applications - Compliant to
the AEC-Q200 reliability standard. Manufacturing
facilities are certified with ISO/TS 16949:2002
High Isolation
High Rejection
Ceramic Surface Mount Package (SMP)
Small Size : 3.8 x 3.8 x 1.47 mm
Pb
Hermetic
RoHS
compliant,
Pb-free
Functional Block Diagram
Top view
Gnd
Ant
Gnd
9
Gnd
Uplink
Gnd
8
7
6
5
4
Gnd
Downlink
Gnd
10
11
12
1
Gnd
2
Gnd
3
Gnd
General Description
856908 is a Band V duplexer in a compact size for use in
Femtocells, coverage enhancement repeaters, data cards,
and other wireless data applications. Designed for
rejection of unwanted Bluetooth and GPS signals, this
SAW duplexer also has excellent power handling
capability for low power transmitters.
Housed in a 3.8 x 3.8 mm hermetic package, this device
allows for a compact and cost effective duplexer solution
for Band V applications.
No matching components are required, making the PCB
design and implementation easy.
Pin Configuration
Pin # SE
5
8
11
1,2,3,4,6
7,9,10,12
Description
Downlink
Antenna
Uplink
Case Ground
Case Ground
Ordering Information
Part No.
856908
856908-EVB
Description
packaged part
evaluation board
Standard T/R size =4000 units/reel.
Data Sheet: Rev H 10/25/12
© 2012 TriQuint Semiconductor, Inc.
- 1 of 8 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
856908
836.5/881.5 MHz SAW Duplexer
Specifications
Electrical Specifications
(1)
Specified Temperature Range:
(2)
-30 to +85 ºC
(3)
Parameter
Uplink Specifications
Conditions
Min
824 – 849 MHz
824 – 849 MHz
869 – 894 MHz
1574 – 1577 MHz
1648 – 1698 MHz
1850 – 2170 MHz
2472 – 2547 MHz
824 – 849 MHz
824 – 849 MHz
-
-
-
42.5
38
35
27
15
9.5
Typical
(4)
836.5
2.0
0.25
44.7
42.4
45
35.7
22.6
12
Max
-
2.5
1.0
-
-
-
-
-
-
+27
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
dB
dBm
Center Frequency
Maximum Insertion Loss
Amplitude Ripple
Absolute Attenuation
Return Loss at Uplink Terminal
(5)
Input Power
(6)
Parameter
(3)
Downlink Specifications
Conditions
Min
869 – 894 MHz
869 – 894 MHz
824 – 849 MHz
1570 – 1580 MHz
1850 – 2170 MHz
2400 – 2484 MHz
869 – 894 MHz
869 – 894 MHz
-
-
-
50
40
33
15
9.5
Typical
(4)
881.5
2.5
0.4
55.3
56.0
41.0
23.4
10.8
Max
-
3.5
2.2
-
-
-
-
-
+24
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
dBm
Center Frequency
Maximum Insertion Loss
Amplitude Ripple
Absolute Attenuation
Return Loss at Downlink Terminal
(5)
Input Power
(6)
Parameter
(3)
Uplink-Downlink Specifications
Conditions
Min
824 – 849 MHz
849 – 869 MHz
869 – 894 MHz
50
34
45
-
Typical
(4)
56.9
38.4
46.4
50
Max
-
-
-
-
Units
dB
dB
dB
Uplink-Downlink Isolation
Source/Load Impedance (single-ended)
(7)
Notes:
1. All specifications are based on the TriQuint schematics for the reference designs shown on page 4
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. Typical values are based on average measurements at room temperature on pcb
5. Excluding losses due to PCB
6. CW signal at 55°C for 10,000 hours
7. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
Parameter
Operable Temperature
Storage Temperature
Rating
-40 to +85
o
C
-40 to +85
o
C
Operation of this device outside the parameter ranges given above may cause permanent damage.
Data Sheet: Rev H 10/25/12
© 2012 TriQuint Semiconductor, Inc.
- 2 of 8 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
856908
836.5/881.5 MHz SAW Duplexer
Specifications
Electrical Specifications
(1)
Specified Temperature Range:
(2)
-40 to +85 ºC
(3)
Parameter
Uplink Specifications
Conditions
Min
824 – 849 MHz
824 – 849 MHz
869 – 894 MHz
1574 – 1577 MHz
1648 – 1698 MHz
1850 – 2170 MHz
2472 – 2547 MHz
824 – 849 MHz
824 – 849 MHz
-
-
-
42.5
37.5
35
27
15
9.3
Typical
(4)
836.5
2.0
0.25
44.7
42.4
45
35.7
22.6
12
Max
-
2.9
1.0
-
-
-
-
-
-
+27
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
dB
dBm
Center Frequency
Maximum Insertion Loss
Amplitude Ripple
Absolute Attenuation
Return Loss at Uplink Terminal
(5)
Input Power
(6)
Parameter
(3)
Downlink Specifications
Conditions
Min
869 – 894 MHz
869 – 894 MHz
824 – 849 MHz
1570 – 1580 MHz
1850 – 2170 MHz
2400 – 2484 MHz
869 – 894 MHz
869 – 894 MHz
-
-
-
50
40
33
15
9.5
Typical
(4)
881.5
2.5
0.4
55.3
56.0
41.0
23.4
10.8
Max
-
3.9
2.2
-
-
-
-
-
+24
Units
MHz
dB
dB p-p
dB
dB
dB
dB
dB
dBm
Center Frequency
Maximum Insertion Loss
Amplitude Ripple
Absolute Attenuation
Return Loss at Downlink Terminal
(5)
Input Power
(6)
Parameter
(3)
Uplink-Downlink Specifications
Conditions
Min
824 – 849 MHz
849 – 869 MHz
869 – 894 MHz
50
34
45
-
Typical
(4)
56.9
38.4
46.4
50
Max
-
-
-
-
Units
dB
dB
dB
Uplink-Downlink Isolation
Source/Load Impedance (single-ended)
(7)
Notes:
1. All specifications are based on the TriQuint schematics for the reference designs shown on page 4
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. Typical values are based on average measurements at room temperature on pcb
5. Excluding losses due to PCB
6. CW signal at 55°C for 10,000 hours
7. This is the optimum impedance in order to achieve the performance shown
Absolute Maximum Ratings
Parameter
Operable Temperature
Storage Temperature
Rating
-40 to +85
o
C
-40 to +85
o
C
Operation of this device outside the parameter ranges given above may cause permanent damage.
Data Sheet: Rev H 10/25/12
© 2012 TriQuint Semiconductor, Inc.
- 3 of 8 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
856908
836.5/881.5 MHz SAW Duplexer
Reference Design – 50
Schematic
Uplink
50
Single-ended
Input
ANT
50
8
1,2,3,4,6
7,9,10,12
11
5
50
50
SE Input, 50
SE Output
50
Single-ended
Output
Downlink
50
Single-ended
Input
ANT
50
8
1,2,3,4,6
7,9,10,12
11
5
50
50
50
Single-ended
Output
Notes:
1.
No impedance matching required
2.
Actual matching values may vary due to PCB layout and parasitic
PC Board
960880
Mounting Configuration
1.11
0.65
Notes:
Top, middle & bottom layers: 1 oz copper
Substrates: FR4 dielectric, .031” thick
Finish plating: Nickel: 3-8µm thick, Gold: .03-.2µm thick
Hole plating: Copper min .0008µm thick
Bill of Material
Reference Desg.
SMA
PCB
Value
N/A
N/A
Data Sheet: Rev H 10/25/12
© 2012 TriQuint Semiconductor, Inc.
JJJYM
GD
0.14
4.01
0.15x45°
CHAMFER
0.80
1.60
Notes:
1.
All dimensions are in millimeters.
2.
This footprint represents a recommendation only.
Description
SMA connector
3-layer
Manufacturer
Radiall USA Inc.
multiple
Part Number
9602-1111-018
960880
- 4 of 8 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
856908
836.5/881.5 MHz SAW Duplexer
Typical Performance
(at room temperature)
Data Sheet: Rev H 10/25/12
© 2012 TriQuint Semiconductor, Inc.
- 5 of 8 -
Disclaimer: Subject to change without notice e
Connecting the Digital World to the Global Network
®
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