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Sony Semiconductor Electronic Components Datasheet

CXA3025N Datasheet

All Band TV Tuner IC (VHF-CATV-UHF)

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CXA3025N
All Band TV Tuner IC (VHF-CATV-UHF)
Description
The CXA3025N is a single chip TV tuner IC which
performs as a mixer, oscillator for UHF and VHF-
CATV bands. An IF amplifier is also provided.
This IC adopts a 24-pin SSOP package (0.8mm
pitch) in response to the trend towards miniaturizing
the tuner and automatic IC mounting.
24 pin SSOP (Plastic)
Features
Low noise figure
Superior cross modulation
Low spurious
Stable oscillating characteristics
Local oscillator output for PLL
Double tune filter connectable to MIX output
Low thermal resistance package
Structure
Bipolar silicon monolithic IC
Applications
TV tuner
CATV tuner
VCR tuner
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage
VCC 10.5
V
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 1200 mW
(when mounted on a board)
Operating Conditions
Supply voltage
VCC
Operating temperature Topr
9.0 ± 0.9
–20 to +75
V
°C
Block Diagram and Pin Configuration (Top View)
24 23 22 21 20 19 18 17 16 15 14 13
BAND
SW
OSC
BUFF
UHF
OSC
VHF
OSC
IF AMP
REG
VHF
MIX
UHF
MIX
1 2 3 4 5 6 7 8 9 10 11 12
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–
E95Y06-ST


Sony Semiconductor Electronic Components Datasheet

CXA3025N Datasheet

All Band TV Tuner IC (VHF-CATV-UHF)

No Preview Available !

CXA3025N
Pin Description and Equivalent Circuit
Pin
No.
Symbol
1 IFIN1
Pin voltage
typ. (V)
During VHF reception
During UHF reception
1
Equivalent circuit
2
8k 8k
2 IFIN2
3 VCC
9.0
4 MIXOUT1
7.4
7.2
VCC
3
450
4
450
5
5 MIXOUT2
7.4
7.2
Description
IF amplifier inputs.
Power supply.
Mixer outputs.
8 VHFIN1
9 VHFIN2
10 NC
11 UHFIN1
12 UHFIN2
3.2
3.4
3.2
3.4
3.4
3.2
3.4
3.2
8
6k
11
6k
9 VHF inputs.
6k Normally a capacitor is
connected at Pin 8 to GND and
Pin 9 is used for input.
No connected.
12 UHF inputs.
6k Balanced input to Pins 11 and
12 or a capacitor is connected
at Pin 11 to GND and Pin 12 is
used for input.
13 VOSCB
15 VOSCC
14 NC
3.3
3.5
6.3
9.0
15
1k
3k
3 VCC
13
3k
VHF oscillators.
–2–
No connected.


Part Number CXA3025N
Description All Band TV Tuner IC (VHF-CATV-UHF)
Maker Sony Corporation
Total Page 12 Pages
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