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CXA3108Q データシート(PDF) 1 Page - List of Unclassifed Manufacturers

部品番号 CXA3108Q
部品情報  A New Age of Unified High-Frequency Analog and Digital Circuits Digital Satellite Broadcast Tuner IC
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On-Chip PLL Frequency
Synthesizer Circuit
<CXA3108Q>
The CXA3108Q integrates on a single
chip two functions that were previously
implemented on separate ICs: the
L-band down converter functions
(oscillator and mixer), and channel
selection. The PLL control function
supports both the I2C bus and the 3-wire
bus and allows an even wider range of
reference frequencies to be selected.
A New Age of Unified High-Frequency Analog and Digital Circuits
Digital Satellite Broadcast Tuner IC
CXA3108Q
s
Supports an oscillator frequency of 2.7 GHz
s
High gain and low noise figure
s
On-chip channel selection PLL
(Supports both I2C bus* and 3-wire bus systems)
Support for a Wide Range of
Applications
The CXA3108Q provides two IF
output circuit systems and an external
input pin for the PLL circuit, and can
support applications such as single unit
tuners for both analog and digital satel-
lite broadcasts and tuners for both UHF
and VHF broadcasts. Since the
CXA3038N also includes an on-chip 32
frequency divider circuit for the local
oscillator signal, it can also support the
earlier carrier recovery technique, in
which a PLL circuit was included in the
QPSK demodulation IC used in a later
stage. The CXA3108Q and CXA3038N
have power consumption levels of 350
mW and 250 mW, respectively, and
achieve a significant power reduction
over most previous chip sets. This
makes these devices optimal for bit
stream output type tuner pack products
that implement, in a single unit, the
whole tuner up to the QPSK demodula-
tion and error correction circuit, which
requires consideration of the heat
generation problem.
Satellite broadcasting using digital modulation first
entered service in 1994 in the US, and similar service
will begin this year, first in Europe and then in Japan.
Thus digital satellite broadcasting is expanding
rapidly on a worldwide scale. Sony has now developed
a chip set for the tuners of digital satellite broadcast
receivers. This chip set, which is introduced here,
consists of the CXA3108Q, which takes full advantage
of Sony's high-speed bipolar process technology and
integrates an oscillator/mixer circuit and a PLL circuit
for channel selection on a single chip, and the
CXA3038N quadrature detector IC.
CXA3108Q
CXA3038N
CXA3038N
s
Adjustment-free carrier recovery provided by
an on-chip PLL circuit
s
Minimal IQ quadrature error and minimal
amplitude error
* ForI2Cbus
PurchaseofSony'sI2CcomponentsconveysalicenseunderPhilips I2C
PatentRightstousethesecomponentsinanI2Csystem,providedthatthe
systemconformstotheI2CStandardSpecificationsasdefinedbyPhilips.
Support for a 2.7-GHz
Oscillator Frequency
<CXA3108Q>
The adoption of the newly-developed
P42 high-frequency linear process (fT
= 30 GHz), and the use of a Sony's
unique differential Colpitts oscillator
circuit allows this device to provide a
stable oscillator signal with no parasitic
oscillation over the wide band of 1.3 to
2.7 GHz. As shown in figure 3, the
frequency conversion characteristics of
this device are extremely flat and
feature high gain and low noise
figure.
Adjustment-Free
Carrier Recovery
<CXA3038N>
The CXA3038N provides adjustment-
free operation of the carrier recovery
function, which is required for 480-
MHz band quadrature detection by
including an on-chip PLL circuit.
External control is not required, since
the PLL circuit includes the divide data
and it can replace the high-cost SAW
resonator. Furthermore, to provide for
cases where the carrier frequency needs
to be adjusted, the device includes an
A/D converter to allow the frequency
to be adjusted over a range consisting
of
±4 50-kHz steps from the center fre-
quency of 479.5 MHz.
VOICE
These products combine both
high-frequency/low-noise analog
circuits and high-speed digital
circuits in a single chip, and in-
corporate a wide range of tech-
niques for suppressing mutual
interference between these cir-
cuits. We are convinced that these
ICs will contribute to reduced
costs and significant miniaturiza-
tion in digital satellite broadcast
tuners.


同様の部品番号 - CXA3108Q

メーカー部品番号データシート部品情報
logo
Sony Corporation
CXA3108AQ SONY-CXA3108AQ Datasheet
257Kb / 19P
   L-band Down Converter IC with On-Chip PLL
More results

同様の説明 - CXA3108Q

メーカー部品番号データシート部品情報
logo
Sony Corporation
CXA3685ER SONY-CXA3685ER Datasheet
368Kb / 23P
   Direct Conversion IC for Digital Satellite Broadcast Tuner
CXA3038N SONY-CXA3038N Datasheet
226Kb / 16P
   IQ Detection IC for Digital Satellite Broadcast Tuner
logo
Synaptics Incorporated.
CX24113A CONEXANT-CX24113A Datasheet
164Kb / 2P
   Digital Satellite Tuner RF IC
CX24128 CONEXANT-CX24128 Datasheet
1Mb / 2P
   Digital Satellite Dual Tuner RF IC
logo
NXP Semiconductors
CX24109 NXP-CX24109 Datasheet
259Kb / 40P
   Digital Satellite Tuner
Rev. 01-13 November 2008
logo
Synaptics Incorporated.
CX24109 CONEXANT-CX24109 Datasheet
161Kb / 2P
   Digital Satellite Tuner
logo
NXP Semiconductors
CX24118A NXP-CX24118A Datasheet
506Kb / 46P
   Advanced Modulation Digital Satellite Tuner
Rev. 02-8 September 2009
logo
List of Unclassifed Man...
SI2156-B30 ETC2-SI2156-B30 Datasheet
60Kb / 2P
   Worldwide High-Performance TV Tuner IC for Analog and Digital Standards
logo
Zarlink Semiconductor I...
ZL10039 ZARLINK-ZL10039 Datasheet
694Kb / 35P
   Digital Satellite Tuner with RF Bypass
ZL10038LDG ZARLINK-ZL10038LDG Datasheet
939Kb / 38P
   Digital Satellite Tuner with RF Bypass
More results


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