BU3087FV-E2 ROHM

Datasheet Built in VCXO, Spread-Spectrum Clock Generator BU3087FV Description Key Specifications BU3087FV has built in VCXO that is necessary for the Crystal Pullability 105ppm (Typ.) Digital-TV signal reception. Modulation Frequency 34.5kHz (Typ.) Connecting 27MHz crystal oscillator generates clock Cycle-to-Cycle Jitter 180psec (Typ.) signals to 74.25MHz for Hi-Vision. Operating Current 45mA (Typ.) BU3087FV has built in Spread-Spectrum function too. Operating Temperature -10 to +75 Features 3225 size crystal is usable Package (Typ.) (Typ.) (Max.) ON / OFF of Spread-Spectrum is selectable SSOP-B16 5.00mm x 6.40mm x 1.35mm Four kinds of Modulation-Rate is selectable 0.25% / 0.50% / 0.75% / 1.00% Triangular Modulation Applications Digital-TV, STB, TV-Tuner SSOP-B16 Typical Application Circuit 3.3V (Typ.) 27MHz Crystal CL CL RD XIN XOUT AVDD1 PDB 0.1F AVSS1 CLKOUT VCTRL VDD 0.1F AVDD2 VSS 0.1F AVSS2 SSON MODSEL1 TEST MODSEL2 CLK27M Figure 1. Typical Application Circuit (Caution) CL and RD in Typical Application Circuit should be optimized as to using crystal and board condition. Product structureSilicon monolithic integrated circuit This product is not designed protection against radioactive rays www.rohm.com TSZ02201-0E3E0J500040-1-2 2012 ROHM Co., Ltd. All rights reserved. j 1/23 TSZ2211114 001 17.AUG.2012 Rev.001DatasheetDatasheet BU3087FV Block Diagram 7:MODSEL1 with Pull-up Control 8:MODSEL2 Logic with Pull-down 11:SSON with Pull-up Spread-Spectrum 10:TEST 14:CLKOUT with Pull-down PLL 15:PDB with Pull-up 4:VCTRL 1:XIN VCXO 9:CLK27M 16:XOUT Figure 2. Block Diagram Pin Configuration XIN XOUT 1 16 2 AVDD1 PDB 15 AVSS1 CLKOUT 3 14 4 VCTRL VDD 14 AVDD2 VSS 5 12 6 AVSS2 SSON 11 MODSEL1 TEST 7 10 8 MODSEL2 CLK27M 9 Figure 3.Pin Configuration (TOP VIEW) www.rohm.com TSZ02201-0E3E0J500040-1-2 2012 Rj OHM Co., Ltd. All rights reserved. 2/23 TSZ2211115 001 17.AUG.2012 Rev.001