CDC-203-50 16 dB We Have A Part In Your Future D I RO OUPN eR 5-1000 MHz RF PASSIVE COMPONENTS DESCRIPTION The CDC-203-50 is a wideband RF, subminature SPECIFICATIONS surface mount 16 dB directional coupler suitable for pick and place assembly. PARAMETER MIN. | TYP. | MAX. | UNITS . . . . Impedance 50 Ohms This device offers low insertion loss and excellent mainline and coupled port flatness over a very broad Frequency Range 5 1000 MHz bandwidth and the low VSWR at all ports minimize circuit interface problems. The isolated port is intern- Temperature Range -40 +85 C ally terminated. Coupling Value 154 | 16 | 16.2 | aB The FR-4 substrate makes this device highly suited : ar to mounting on FR-4 board assemblies due to the insertion loss (Mainline) 0.25 0.60 1.10 dB matched coefficients of thermal expansion. Mainline Loss Flatness 0.40 0.80 di FUNCTIONAL SCHEMATIC Coupled Port Fiatness 0.40 | 0.80 dB wo Wn 3 our Directivity 15 | 20 dB Return Loss 18 25 dB from the pad on the top side to the pad on the 0.08 [1.27]sQ. Contact the factory for further information on tape and reel specifications and recommended reflow profiles. 3. 7 4 COUPLED YN ISOLATED PORT PORT (INTERNALLY TERMINATED) PACKAGE ALL DIMENSIONS ARE IN INCHES [mm]. SUBSTRATE MATERIAL: 0.10 [2.84] WP (o.se]. 4 PLAGES Tt / PLCS | ress [0.97] FR-4 028 17.11)---3, 2 _ 2.030 [0.76] Note: All half via contacts are plated through { 9.020 [0.51] | 0.216 [5.49] i h . bottom side of the board TT 7 MINIMUM 0.00 [0.00] ae NO | | | 0.062 [1.57] 9 oF 3 0.100 [2.54] TYP. 22S 8 PP otee set g rf 3 yoann aod 3 Pinout Chart oT A ; 0.36 [9.09] 0.216 [5.49] Pin Function 0.071 [1.80] 1 Input | { TYP. 2 Ground 0.140 [2.78] MAX _a if i i 3 Coupled Port 0.095 tai) Tre. | LL o.032 [0.81] 0.038 [0.97] ab J [ t 4 Ground , 0.037 [0.94] 0.062 [1.57] 5 Ground MAX. 6 Mainline TOLERANCES: Recommended Land -XX = .01 Pattern XXX = 2.005 11.2.00 Rev. - VARI-L Company Inc. 4895 Peoria Street Denver, Colorado 80239 Phone: (303) 371-1560 Fax: (303) 371-0845 Email: sales@vari-l.com Website: www.vari-l.com