BU3087FV-E Datasheet, PDF (1/26 Pages) Rohm – Built in VCXO,Spread-Spectrum Clock Generator

Datasheet
Built in VCXO,
Spread-Spectrum Clock Generator
BU3087FV
●Description
BU3087FV has built in VCXO that is necessary for the
Digital-TV signal reception.
Connecting 27MHz crystal oscillator generates clock
signals to 74.25MHz for Hi-Vision.
BU3087FV has built in Spread-Spectrum function too.
●Features
„ 3225 size crystal is usable
„ ON / OFF of Spread-Spectrum is selectable
„ Four kinds of Modulation-Rate is selectable
（±0.25% / ±0.50% / ±0.75% / ±1.00%）
„ Triangular Modulation
●Key Specifications
„ Crystal Pullability
„ Modulation Frequency
„ Cycle-to-Cycle Jitter
„ Operating Current
„ Operating Temperature
±105ppm (Typ.)
34.5kHz (Typ.)
180psec (Typ.)
45mA (Typ.)
-10℃ to +75℃
●Package
SSOP-B16
(Typ.) (Typ.) (Max.)
5.00mm x 6.40mm x 1.35mm
●Applications
Digital-TV, STB, TV-Tuner
●Typical Application Circuit
3.3V (Typ.)
SSOP-B16
0.1μF
0.1μF
CL
27MHz Crystal
CL
XIN
AVDD1
AVSS1
VCTRL
AVDD2
AVSS2
MODSEL1
MODSEL2
XOUT
PDB
CLKOUT
VDD
VSS
SSON
TEST
CLK27M
RD
0.1μF
Figure 1. Typical Application Circuit
(Caution) CL and RD in Typical Application Circuit should be optimized as to using crystal and board condition.
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
©j 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays
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TSZ02201-0E3E0J500040-1-2
17.AUG.2012 Rev.001