8PSK/QPSK direct conversion tuner IC
P
V
P
P
V
Features
■ Direct convers i on
■ Input range 950 to 2150 MHz
■ Low pass filter bandwidth 5 to 36 MHz
■ 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
■ Low-cost integrated ZIF tuner for DVB-S2 and
DIRECTV
satellite applications
■ QPSK/8PSK/16APSK and 32APSK support
■ Simple interface to ST’s satellite demodulator
devices
■ Low phase noise, excellent linearity and high
LO harmonics rejection
■ VFQFPN2 5x5x1.0 32 pitch package
²
C serial interface
®
, VSAT and internet through
STB6100
Figure 1. Functional block diagram
GND
CP_BYP
2
26272829303
5
BB
Gain
1
1
6
5
CLK
VCCBB
GND
GND
GND
GND
CCMIX
VCCRF
GND
RFIN
Delta
o
SYN_BY
OP
AMP
Cancellation
Cancellation
TSTA
LD
DC Offset
DC Offset
LD
CP
CP
PDF/(Ni+Nf)
2-Wire BusBW
141312111
AS
DATA
VTUNE
1
0
/2 or /1
Divide
2/4
VREG3
VCCSCV
Sigma
o
0
90
AGC
VCO_BY
3
2
1
2
3
4
5
6
AGC
Control
7
8
9
CCBIAS
24
XTAL
23
XOOUT
22
XTALB
21
XO_BY
20
IOUT
IOUTB
19
18
QOUTB
QOUT
17
Table 1. Device summary
Order code Packing
April 2009 Doc ID 10839 Rev 2 1/5
STB6100 Standard tray version
STB6100T Tape and real
www.st.com
5
Description STB6100
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 VFQFPN2 5x5x1.0 32 pitch 0.50 package, it is ideal
for low cost DBS desi gn.
2/5 Doc ID 10839 Rev 2
STB6100 ECOPACK
®
2 ECOPACK
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
®
Doc ID 10839 Rev 2 3/5
Revision history STB6100
3 Revision history
Table 2. Document revision history
Date Revision Changes
05-Sept-2004 1 Initial release.
21-Apr-2009 2 Supported features updated.
4/5 Doc ID 10839 Rev 2
STB6100
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y
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A
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Doc ID 10839 Rev 2 5/5
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