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STB6100
8PSK/QPSK direct conversion tuner IC
DATA BRIEF
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. Figure 2. Integrated silicon tuner
VCO_BYP SYN_BYP VCCSCV
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)
xxxx
CP_BYP
VTUNE
3 2 GND 1
3 1
3 0
2 9
OP AMP
2 8
2 7
2 6
GND 2 5 24 XTAL
GND
2
/2 or /1
Delta Sigma /(Ni+Nf)
LD PDF
CP
CP
LD
23
XOOUT
GND
3
Divide 2/4
22
DC Offset Cancellation
XTALB
GND
4
21
XO_BYP
VCCMIX
5
0
o
20
90o
IOUT
VCCRF
6
AGC Control
19
IOUTB
GND
7
DC Offset Cancellation BW 2-Wire Bus BB Gain
18
QOUTB
RFIN
8 1 0 VREG3 1 1 AGC 1 2 TSTA 1 3 AS 1 4 DATA 1 5 CLK
17 1 6
QOUT
9 VCCBIAS
VCCBB
Rev. 1 September 2004 1/2
STB6100
FEATURES Powered by RF Magic

2-wire I2C 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
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

Table 1. Order Codes
Part Number
STB6100 STB6100T
Description Standard tray version Tape and real
REVISION HISTORY Table 2. Revision History
Date September-2004 Revision 1 First Issue Description of Changes
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
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