CXA3250AN
All Band TV Tuner IC with On-chip PLL
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Description
The CXA3250AN is a monolithic TV tuner IC which
integrates local oscillator and mixer circuits for VHF
band, local oscillator and mixer circuits for UHF
band, an IF amplifier and a tuning PLL onto a single
chip, enabling further miniaturization of the tuner.
Features
•
Superior cross modulation
•
Balanced UHF oscillator (4 pins) with excellent
oscillation stability
•
Supports both I
2
C and 3-wire bus modes
•
Automatic identification of 18, 19 or 27-bit control
(during 3-wire bus mode)
•
On-chip A/D converter (during I
2
C bus mode)
•
On-chip high voltage drive transistor for charge
pump
•
Reference frequency selectable from 31.25, 50 or
62.5 kHz (when using a 4 MHz crystal)
•
Low-phase noise synthesizer
•
On-chip 4-output band switch (supports output
voltages from 5 to 9 V)
Applications
•
TV tuners
•
VCR tuners
•
CATV tuners
Structure
Bipolar silicon monolithic IC
30 pin SSOP (Plastic)
Absolute Maximum Ratings
(Ta=25 °C)
•
Supply voltage
•
Storage temperature
V
CC
1, V
CC
2 –0.3 to +5.5
V
CC
3
–0.3 to +10.0
Tstg
–55 to +150
V
V
°C
•
Allowable power dissipation
P
D
580
mW
(when mounted on a printed circuit board)
Operating Conditions
•
Supply voltage
V
CC
1, V
CC
2 4.75 to 5.30
V
CC
3
4.75 to 9.45
•
Operating temperature Topr
–25 to +75
V
V
°C
This IC has the pins whose electrostatic discharge strength is weak as the operating frequency is high and the high-frequency
process is used for this IC.
Take care of handling the IC.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E99866-TE
SONY [ SONY CORPORATION ]
