1/2 data brief september 2004 STB6100 8psk/qpsk direct conversion tuner ic rev. 1 description the STB6100 asic is a highly integrated, low-cost direct conversion (zero if) tuner ic for dvb-s2 broadcast satellite applications. this device includes an lna, down-converting mixers, baseband low-pass filters, gain control, on-chip vco and a low noise pll. its wide gain control range is well suited for low symbol rate applications. the STB6100 is controlled by a simple two wire interface and has been designed to minimize the external bill of materials to reduce manufacturing costs and to simplify the board layout. the reduced component count ensures greater system reliability leading to increase consumer satisfaction. the dvb-s2 standard increases the capacity of satellite broadcasts by as much as 30%, so enabling the effective deployment of high data rate applications such as high definition tv and broadband internet. packaged in a small qfn 32-pin package, it is ideal for low cost dbs design. figure 1. package (420 + 36 pbga 27 x 27) figure 2. integrated silicon tuner xxxx xo_by p xtalb xoout iout ioutb qoutb qout xtal vccrf rfin gnd gnd v ccmix gnd gnd gnd gnd ld vtune vccscv cp cp_byp syn_by p vco_by p clk vccbb v ccbias data as agc vreg3 tsta pdf /(ni+nf) bb gain cp 3 2 2 5 9 1 6 2 6 2 7 2 8 2 9 3 0 3 1 1 4 1 3 1 2 1 1 1 0 1 5 1 8 7 2 3 4 5 6 24 17 21 18 19 20 23 22 ld 2-wire bus bw agc control dc offset cancellation dc offset cancellation /2 or /1 divide 2/4 0 o 90 o delta sigma op am p
STB6100 2/2 features powered by rf magic direct conversion input range 950 to 2150 mhz supports 1 to 45 msymbol/s fully integrated lo and pll differential i/q outputs buffered xo output to clock other devices low external component count low power consumption 2-wire i 2 c serial interface low cost integrated zif tuner for dvb-s2 and directv, vsat and internet throuth satellite applications 8psk/qpsk support simple interface to st?s satellite demodulator devices low phase noise, excellent linearity and high lo harmonics rejection small qfn-32 pin package table 1. order codes revision history table 2. revision history part number description STB6100 standard tray version STB6100t tape and real date revision description of changes september-2004 1 first issue i nformation furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the con sequence s o f use of such information nor for any infringement of patents or other rights of third parties which may result from its use. n o license is grante d b y implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicatio n are subje ct t o change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics produ cts are n ot a uthorized for use as critical components in life support devices or systems without express written approval of stmicroelectron ics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2004 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com
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