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PLL520-28/-29
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Low Phase Noise VCXO (for 120-200MHz Fund Xtal)
PIN CONFIGURATION (Top View)
FEATURES
• • • • • • • • 120MHz to 200MHz Fundamental Mode Crystal. Output range: 120 – 200MHz (no PLL). Low Injection Power for crystal 50uW. Sub 0.5pS RMS phase jitter ( 12kHz to 20MHz ). PECL (PLL520-28) or LVDS output (PLL520-29). Integrated variable capacitors. Supports 2.5V or 3.3V-Power Supply. Available in 16-Pin (TSSOP or 3x3mm QFN).
VDD XIN XOUT N/C N/C
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
N/C N/C GND CLKC VDD CLKT N/C N/C
PLL 520-2x
DESCRIPTION
The PLL520-28/-29 are a family of VCXO IC’s specifically designed to pull high frequency fundamental crystals. They achieve very low current into the crystal resulting in better overall stability.