MC44S803EP FREESCALE [Freescale Semiconductor, Inc], MC44S803EP Datasheet - Page 27

• Manufacturer Part Number: MC44S803EP
• Description: Low Power CMOS Broadband Tuner
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
system design. Note that the upstream and downstream
frequency bands overlap. These are the limits of the
frequency ranges. The actual bands are adjusted based on
the target application.
Figure 30 shows a simplified block diagram for a sample
RF In/Out
AGC RF1
AGC RF2
5 – 65 MHz
48 – 1000 MHz
HPF
LPF
Figure 30. MC44S803 Silicon Tuner Sample System Design Block Diagram
Upstream
4 to 28 MHz
APPLICATIONS INFORMATION — SAMPLE SYSTEM DESIGN
Input
Balun
Differential
Amplifier
VCO
Mixer
OSC
1086 MHz Nominal 1st IF
1077 to 2150 MHz
MISO/Addr 2
SS/Addr 1
Synth
BPF
Dual
Clock
Mixer
VCO
Table 6) dealing with overall tuner performance apply to the
sample system design, since it includes the necessary filters.
SPI / I
Performance specifications (as previously listed in
1042 MHz
Interface
Differential
2
Amplifier
C Bus
Silicon Tuner IC
MC44S803
Freescale
BusSelect
MOSI/SDA
30 – 60 MHz 2nd IF
Differential
Amplifier
BPF
Regulators
Internal
3.3 V
IF AGC Control
To Digital
Demodulator
To Analog
Demodulator
MC44S803
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