MC44S803 Datasheet, PDF (1/36 Pages) Freescale Semiconductor, Inc – Low Power CMOS Broadband Tuner

Freescale Semiconductor
Technical Data
Low Power CMOS Broadband Tuner
Freescale Semiconductor’s MC44S803 is a 3.3 Volt, low power, high
performance, single-chip CMOS, broadband tuner. This chip offers a
cost-effective, low-power solution for high-performance analog and digital TV
market. This highly integrated third generation silicon tuner covers a 48 MHz to
1 GHz RF input and converts to a 30 MHz to 60 MHz IF frequency. The 861 MHz
to 1 GHz frequency range is supported with reduced performance.
The single-chip broadband tuner uses a double-conversion architecture,
which eliminates tracking filters and their manually aligned coils. Two IF outputs
are provided to support systems with multiple demodulators (e.g. one digital
demodulator and one analog TV demodulator).
The MC44S803 is designed to meet all Data Over Cable Service Interface
Specification (DOCSIS), ATSC specifications for 8VSB, 64- and 256-Quadrature
Amplitude Modulation (QAM) as well as the NorDig Unified 1.0.3 specifications
for Coded Orthogonal Frequency Division Multiplexing (COFDM) for DVB-T.
The device is available in a Pb-free 64-pin quad leadless package (QFN).
Features
• Low power consumption (746 mW typical)
• Single 3.3 V supply operation
• Programmable power down mode with fast start-up
• Variable-gain Low-Noise Amplifier (LNA) with 40 dB gain control range
• Ability to switch between two external analog control voltages for LNA
• Two fully integrated frequency synthesizers
• Fully integrated tuned circuit Voltage Controlled Oscillators (VCOs)
• Fully integrated VCO varactors (requires only one external inductor)
• Second IF variable gain amplifier
• Flexible reference oscillator circuit (4.0 MHz to 28 MHz crystal)
• Reference oscillator buffer to drive additional tuners or modulators
• Choice of I²C or SPI interface control buses
• Internal self-diagnostic circuits
• Typical CTB of -63 dBc, CSO of -63 dBc and XMod of -55 dBc
• Typical noise figure of 7.0 dB
• Phase noise -89 dBc/Hz, typical @ 10 kHz offset
MC44S803
Rev 2.0, 09/2008
MC44S803
LOW POWER CMOS
BROADBAND TUNER
EP SUFFIX
64-LEAD QFN PACKAGE
CASE 1606-01
ORDERING INFORMATION
Device
Temp.
Range
Package RoHS
MC44S803EP 0°C to 64 QFN yes
+85°C
RF In
Amp
AGC
AGC
XTAL
Mixer
1st IF
BPF
VCO
Dual
Synth
OSC
Mixer Amp
VCO
SPI / I²C
Control I/O
2nd IF
BPF
Amp
Regulator
IF AGC Control
Digital
Analog
3.3 V
Figure 1. MC44S803 Functional Block Diagram
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006 - 2008. All rights reserved.