0922B75-37A ANAREN | Alldatasheet
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Technical content
Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Model 0922B75-37A Rev. A Xinger Balun 75Ω to 75Ω Balanced
Description
The 0922B75-37A is a low cost, low profile sub-miniature unbalanced to balanced transformer designed for different ial inputs and output locations on wireless chipsets in an easy to use surface mount package covering dual polarized commercial Satellite bands 950 MHz – 2150 MHz. The 0922B75-37A is ideal for high volume manufacturing and is higher performance than traditional wire wound baluns. The 0922B75-37A has an unbalanced port impedance of 75 Ω and a 75 Ω balanced port impedance*. This transformation enables single ended signals to be applied to differential ports on modern integrated chipsets. The output ports have equal amplitude (-3dB) with 180 degree p hase differential. The 0922B75-37A is available on tape and reel for pick and place high volume manufacturing. ELECTRICAL SPECIFICATIONS** Frequency Unbalanced Port Impedance Balanced Port Impedance* Return Loss Insertion Loss MHz Ohms Ohms dB min dB max 950 - 2150 75 75 12 0.8*** Amplitude Balance Phase Balance Power Handling ΘJC Operating Temp. dB Degrees max Watts ºC / Watt ºC Features:
- 950 – 2150 MHz
- 180° Transformer
- 75 Ohm to 2 x 37.5 Ohm
- Low Insertion Loss
- Multi-band Cellular Apps
- Sat LNB Chipset Compliant
- No DC Decoupling Capacitors Required
- Input to Output DC Isolation
- Surface Mountable
- Tape & Reel 0 ± 0.7 180 ± 10 4 TBD -55 to +85 **Specification based on performance of unit proper ly installed on microstrip printed circuit boards with 75 Ω + 37.5Ω nominal impedance. Spec’s subject to change without notice. * 37.5Ω reference to ground *** Insertion Loss stated at room temperature (0.9 dB Max at +85 ºC) Outline Drawing Mechanical Outline Dimensions are in Inches [Millimeters] Side ViewTop View (Near-side) Bottom View (Far-side) .150±.005 [3.81±0.13] .150±.005 [3.81±0.13] 45 6 3 12 6X .030±.004 [0.76±0.10] Pin Designation In NC / DC GND Out 1 GND Out 2 Tolerances are Non-Cumulative 6X .009±.004 [0.24±0.10] .125±.004 [3.18±0.10] 4X .020±.004 [0.51±0.10] .059±.006 [1.51±0.15] Orientation Marker Denotes Pin Location
USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing. Model 0922B75-37A Rev. A Typical Broadband Performance: 550 MHz. to 2550 MHz. Balanced and UnBalanced Return Loss -30 -25 -20 -15 -10 550 750 950 1150 1350 1550 1750 1950 2150 2350 2550 Frequency [MHz] Return Loss [dB] Amplitude Balance -0.8 -0.6 -0.4 -0.2 0.2 0.4 0.6 0.8 550 750 950 1150 1350 1550 1750 1950 2150 2350 2550 Frequency [MHz] Amplitude Balance [dB] Insertion Loss -1.8 -1.6 -1.4 -1.2 -0.8 -0.6 -0.4 -0.2 550 750 950 1150 1350 1550 1750 1950 2150 2350 2550 Frequency [MHz] Insertion Loss [dB] Phase Balance 170 172.5 175 177.5 180 182.5 185 187.5 190 550 750 950 1150 1350 1550 1750 1950 2150 2350 2550 Frequency [MHz] Phase Balance [Deg] Pin Configuration: The internal configuration of the Xinger balun is diagramed to the left; the unbalanced port is DC connected to ground and the two balanced ports are DC connected and floating. For many chipset applications there is an opportunity to eliminate two decoupling capacitors and/or use a single bias point if applicable. Differential drive is popular in integrated circuit since it aids stability in the presence of bond wire and pin inductance, provides some degree of immunity to power supply and ground noise, and can provide higher output power in the case of some device limits. The construction of the Xinger balun is bonded multi-layered stripline made of low loss dielectric material with plated through vias connecting the internal circuitry to the external printed circuit board, similar to that of the Xinger hybrids and directional couplers
Place Manufacturing. USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Model 0922B75-37A Rev. A Mounting Configuration: Packaging and Ordering Information Parts are available in reel and are packaged per EIA 481-2. Parts are oriented in tape and reel as shown below. Minimum order quantities are 4000 per reel. See Model Numbers below for further ordering information. Direction of Part Feed (Unloading)Dimensions are in inches [mm] Mounting Footprint Dimensions are in Inches [Millimeters] 75 Ω Transmission Line 6X .030 [0.76] 6X .016 [0.41] .125 [3.17] 4X .020 [0.51] 2X 37.5 Ω Transmission Line No copper area Plated thru holes to ground Circuit Pattern Footprint Pad (s) Solder Resist In order for Xinger surface mount components to work optimally, there must be a 75 Ω transmission line to the balanced port and 37.5 Ω transmission lines from the unbalanced ports. If this condition is not satisfied, amplitude balance, insertion loss and VSWR may not meet published specifications. All of the Xinger components are constructed from ceramic filled PTFE composites which possess excellent electrical and mechanical stability having X and Y thermal coefficient of expansion (CTE) of 17 ppm/oC An example of the PCB footprint used in the testing of these parts is shown to the left. In specific designs, the transmission line widths need to be adjusted to the unique dielectric coefficients and thicknesses as well as varying pick and place equipment tolerances.
USA/Canada: Toll Free: Europe: (315) 432-8909 (800) 544-2414 +44 2392-232392 Available on Tape and Reel For Pick and Place Manufacturing. Model 0922B75-37A Rev. A REEL DIMENSIONS (inches [mm]) ØA B ØC 0.472 [12.0] 4.017 [102.03] 13.0 [330.2] 4000 QUANTITY/REEL TABLE 1 ØD 0.512 [13.0]ØD B ØA ØC