UXC20P DC-20 GHz Programmable Binary Prescaler Application Features The UXC20P can be used as a general Wide Operating Range: DC-20 GHz purpose, fixed modulus prescaler in high Low SSB Phase Noise: -153 dBc frequency PLLs. The low phase noise of the 10 kHz divider makes it ideal for generating low jitter, Large Output Swings: >1 V ppk/side synchronous clocks in telecom applications. Single-Ended and/or Differential Operation Pad Metallization Low power consumption: 0.6 W The QFN package pad metallization 4x4 QFN package consists of a Ni/Pd/Au plating over 3 Dividers-in-One a Cu(c194) leadframe. Description The UXC20P is a low noise programmable prescaler featuring either divide-by-2, divide-by-4, or divide-by-8 division ratios. The device features differential inputs and outputs, adjustable output swing and high input sensitivity. The control inputs are CMOS and LVTTL compatible. The UXC20P is packaged in a 24 pin, 4 mm x 4 mm leadless surface mount package. Key Specifications (T = 25C): Vee = -3.3 V, Iee = 165 mA, Zo=50 Parameter Description Min Typ Max Fin (GHz) Input Frequency DC* - 20 Pin (dBm) Nominal Input Power -10 0 10 Pout (dBm) Nominal Output Power -5 5 - (dBc/Hz) SSB Phase Noise 10 kHz Offset - -153 - PDC (mW) DC Power Dissipation - 430 - jc (C/W) Junction-Case Thermal Resistance - 20 - * Low frequency limit dependent on input edge speed SMD-00043 Rev D 1 of 8 Subject to Change Without Notice UXC20P Frequency Divider Application Return Loss of Differential Input Ports Return Loss of Differential Output Ports Input Sensitivity Window Divide-by-2 Output (Input: 10 GHz Output: 5 GHz) Divide-by-(8/3) Output Divide-by-2048 Output (Input: 10 GHz Output: 3.75 GHz) (Input: 10 GHz Output: 4.9 MHz) SMD-00043 Rev D 2 of 8 Subject to Change Without Notice