SL38160 Programmable 4-PLL CG with VCXO and SSCG Key Features Description The SL38160 4 PLL programmable low power Clock 4 Programmable PLLs with up to 5 Clock Outputs Generator with SSCG and VCXO functions used for Programmable VCXO and SSCG options reducing Electromagnetic Interference (EMI) and general Wide 2.5V to 3.3V +/-10% power supply range purpose frequency synthesizing. The product is designed Low power dissipation and low jitter using SpectraLinear proprietary programmable EProClock phase-locked loop (PLL) and Spread Programmable Center or Down Spread Modulation from 0.25 to 5.0% Spectrum Clock (SSC) technology to synthesize and modulate the input clock. The modulated clock can 8 to 48 MHz external crystal range significantly reduce the measured EMI levels, and leading 8 to 166 MHz external clock input range to the compliance with regulatory agency requirements. Programmable 1 to 200 MHz clock output range Up to 5 output clock frequencies, spread %, output rise and Integrated internal voltage regulator fall times for each clock outputs, crystal load, spread FS1/2 functions modulation frequency and FS1/2 functions can be Programmable CL at XIN and XOUT pins programmed to meet the needs of wide range of applications. The SL38160 operates from 2.5V to 3.3V, +/- Programmable output rise and fall times 10% power supply voltage range. The product is offered in 16-pin TSSOP package with commercial and 16-pin TSSOP package with commercial and industrial industrial temperature ranges grades. Applications Benefits DTV Complete VCXO with +/-120ppm typical pull range STB and DVD-R/W Peak EMI reduction of 8 to 16 dB Fast time-to-market Printers, MFPs, Digital Copiers Cost Reduction Routers and Servers Reduction of PCB layers General Purpose Frequency Synthesising Eleminates the need for XOs and VCXOs Block Diagram XIN/CLKIN Crystal Oscillator PLL-1 (XO/VCXO) CLKOUT-1 XOUT Output VIN Drivers with (Optional) CLKOUT-2 Multi PLL-2 Function I/O 5 Input Mux and and CLKOUT-3 Control Logic Output Drivers Drive SS-PLL-3 VDD CLKOUT-4 Strength VSS Control CLKOUT-5 VDDO-1 SS-PLL-4 VDDO-2 VDDO-3 VSSO FS1 FS2 REFCLK-1 REFCLK-2 Rev 1.1, January 5, 2009 Page 1 of 11 400 West Cesar Chavez, Austin, TX 78701 1+(512) 416-8500 1+(512) 416-9669 www.silabs.com SL38160 Pin Configuration 16 XOUT XIN 1 15 FS1/REFCLK-1 2 VDD VIN FS2/REFCLK-2 14 3 13 VDDO-1 4 VDDO-3 12 VSSO VDDO-2 5 CLKOUT-5 VSS 11 6 CLKOUT-4 CLKOUT-1 10 7 CLKOUT-3 CLKOUT-2 9 8 16-Pin TSSOP Package Pin Description Pin Pin Name Pin Pin Description Number Type 1 XIN/CLKIN Input Crystal oscillator input in VCXO and Xo mode or external clock input in XO mode only. Oscillator powered by VDD. 2 FS1 or Input OE (output Enable). REFCLK-1 3 VIN Input VCXO control pin VIN. This pin is not used and is not connected (n/c) in crystal oscillator mode. 4 VDDO-1 Power 3.3V to 2.5V +/-10% Positive Power Supply. VDDO-1 powers clock output drivers for CLKOUT1/2. VDDVDDO. 5 VDDO-2 Power 3.3V to 2.5V +/-10% Positive Power Supply. VDDO-1 powers clock output driver for CLKOUT3. VDDVDDO. 6 VSS Power VDD power ground. 7 CLKOUT-1 Output Programmable clock output-1, this pin can be programmed as synthesized clock output with or without spread or REFOUT and is powered by VDD-1. 8 CLKOUT-2 Output Programmable clock output-2, this pin can be programmed as synthesized clock output with or without spread or REFOUT and powered by VDDO-1. 9 CLKOUT-3 Output Programmable clock output-3, this pin can be programmed as synthesized clock output with or without spread or REFOUT and powered by VDDO-2. 10 CLKOUT-4 Output Programmable clock output-4, this pin can be programmed as synthesized clock output with or without spread or REFOUT and powered by VDDO-3. Rev 1.1, January 5, 2009 Page 2 of 11