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STB6100| Datasheet

By datasheet - April 3rd, 2008

STB6100| Datasheet

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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


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