UXD20P DC-20 GHz Programmable 1,2,4,8 Binary Prescaler Application Features The UXD20P can be used as a general pur- Wide Operating Range: DC-20 GHz pose, fixed modulus prescaler in high frequen- Low SSB Phase Noise: -153 dBc cy PLLs. The low phase noise of the divider 10 kHz makes it ideal for generating low jitter, syn- Large Output Swings: 750 mVpp/ chronous clocks in telecom applications. side Single-Ended and/or Differential Pad Metallization Operation The QFN package pad metallization consists Low power consumption: 430 mW of a Ni/Pd/Au plating over a Cu (C194) Size: 4 mm x 4 mm QFN package leadframe. 3 Dividers-in-One with Pass Through DC-7 GHz Limit Amp Description The UXD20P is a low noise DC to 20GHz programmable prescaler featuring either divide by-1, divide-by-2, divide-by-4, or divide-by-8 division ra- tios. In the divide-by-1 mode, the UX- D20P is also a DC-7 GHz limit amplifier. The device features differential inputs and outputs, adjustable output swing, and high input sensitivity. The control inputs are CMOS and LVTTL compatible. The UXD20P is packaged in a 24 pin, 4 mm x 4 mm leadless surface mount package. Key Specifications (T = 25C): Vee = -3.3 V, Iee = 130 mA, Zo=50 Parameter Description Min Typ Max Fin (GHz) Input Frequency DC* - 20 Pin (dBm) Input Power -10 0 10 Pout (dBm) Output Power -5 3 - (dBc/Hz) SSB Phase Noise 10 kHz Offset - -153 - PDC (mW) DC Power Dissipation - 430 - jc (C/W) Junction-Case Thermal Resistance - 32 - * Low frequency limit dependent on input edge speed SMD-00044 Rev F 1 of 9 Subject to Change Without Notice UXD20P Frequency Divider Application Min/Max Single-Ended Input Power Binary Divide-by-2 Output Power, 3rd Harmonic & Input Feedthru Input Sensitivity Window SSB Phase Noise for Binary Divide-by-8 Config- Binary Divide-by-2 Configuration uration Input Freq = 7.8 GHz Gain S21 Input Freq = 20 GHz, 150mV/div -1V Binary Divide-by-4 Configuration Binary Divide-by-8 Configuration Input Freq = 20 GHz, 150mV/div Input Freq = 20 GHz, 150mV/div -1V -1V SMD-00044 Rev F 2 of 9 Subject to Change Without Notice