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Sony Semiconductor Electronic Components Datasheet

CXA3250AN Datasheet

All Band TV Tuner IC with On-chip PLL

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CXA3250AN
All Band TV Tuner IC with On-chip PLL
For the availability of this product, please contact the sales office.
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.
30 pin SSOP (Plastic)
Features
Superior cross modulation
Balanced UHF oscillator (4 pins) with excellent
oscillation stability
Supports both I2C 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 I2C 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)
Absolute Maximum Ratings (Ta=25 °C)
Supply voltage
VCC1, VCC2 –0.3 to +5.5 V
VCC3 –0.3 to +10.0 V
Storage temperature Tstg –55 to +150 °C
Allowable power dissipation
PD 580 mW
(when mounted on a printed circuit board)
Operating Conditions
Supply voltage
VCC1, VCC2 4.75 to 5.30
VCC3 4.75 to 9.45
Operating temperature Topr –25 to +75
V
V
°C
Applications
TV tuners
VCR tuners
CATV tuners
Structure
Bipolar silicon monolithic IC
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 Semiconductor Electronic Components Datasheet

CXA3250AN Datasheet

All Band TV Tuner IC with On-chip PLL

No Preview Available !

Block Diagram and Pin Configuration
CXA3250AN
CL 1
DA 2
ADSW 3
/CE
BS3 4
BS1 5
BS2 6
BS4 7
VCC1 8
MIXout1 9
MIXout2 10
GND1 11
BYP/MS 12
VHFin 13
UHFin1 14
UHFin2 15
BUS
Interface
Shift
Register
Divider
1/64, 80, 128
Band
SW
Driver
VSW
Mode
Select
V.REG
Bias
Phase
Detector
Programable
Divider
14/15bit
REF
OSC
Charge
Pump
LOCK
Det
30 VCC3
29 REFOSC
ADC
28 CPO
27 VT
LOCK
26 /ADC
25 IFOUT
24 GND2
IF AMP
VHF
MIX
UVHF
MIX
Buffer
Buffer
UHF
OSC
Buffer
VHF
OSC
23 VCC2
22 UOSCB2
21 UOSCE2
20 UOSCE1
19 UOSCB1
18 VOSC2
17 GND
16 VOSC1
—2—


Part Number CXA3250AN
Description All Band TV Tuner IC with On-chip PLL
Maker Sony Corporation
Total Page 30 Pages
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