SL1711
Quadrature Downconverter
Preliminary Information
Supersedes November 1996 version, DS4032 - 1.6
DS4032 - 4.0 October 1997
The SL1711 is a quadrature downconverter, intended
primarily for application in professional and consumer digital
satellite tuners.
The device contains all elements necessary, with the
exception of external local oscillator tank to form a complete
system operating at standard satellite receiver intermediate
frequencies. It is intended for use with external carrier
recovery.
The device includes a low noise RF input amplifier, a
reference VCO with prescaler output buffer and In-phase and
Quadrature mixers with baseband buffer amplifiers containing
AGC gain control.
The SL1711 is optimised to drive a dual ADC converter
such as the VP216.
The SL1711 utilises a power MP package, whereas the
SL1711B variant uses a standard MP16 plastic package and
features a revised operating temperature.
AGC
IOUT
VEEA
IFINB
IFIN
IVCCA
QOUT
VEEC
1
16
VCCB
VCODIS
VCO
B
VCO
A
VEEB
PSCAL
PSCALB
VCCC
SL1711
MH16
FEATURES
SL1711B
s
Single chip system for wideband quadrature
downconversion
s
Compatible with all standard high IF frequencies
s
Excellent gain and phase match up to 30MHz
baseband
s
High output referred linearity for low distortion and
multi channel application
s
Simple low component application
s
Fully balanced low radiation design with fully
integrated quadrature generation
s
High operating input sensitivity
s
On-board AGC facility
s
On chip oscillator for varactor tuning or SAW
resonator operation
s
ESD protection (Normal ESD handling procedures
should be observed)
APPLICATIONS
s
Satellite receiver systems
s
Data communications systems
s
Cable systems
AGC
IOUT
VEEA
IFINB
IFIN
IVCCA
QOUT
VEEC
1
16
VCCB
VCODIS
VCO
B
VCO
A
VEEB
PSCAL
PSCALB
VCCC
MP16
Fig. 1 Pin allocation
ORDERING INFORMATION
SL1711/KG/MH1P (Sticks)
SL1711/KG/MH1Q (Tape and Reel)
SL1711B/KG/MP1S (Sticks)
SL1711B/KG/MP1T (Tape and Reel)
MITEL [ MITEL NETWORKS CORPORATION ]
