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PDF CXA3025N Data sheet ( Hoja de datos )
| Número de pieza | CXA3025N | |
| Descripción | All Band TV Tuner IC (VHF-CATV-UHF) | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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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
1 page  
Electrical Characteristics Measurement Circuit
CXA3025N
IF OUT
+9V PLL OUT
VC
15µ
100
1n
1n
+9V
BAND SW
ON: UHF
OFF: VHF
10k
1n
47k
1n
3.3k
1T363 0.5φ 2.6φ 1.5t
0.5p (UK)
14p
56p
4p 2p
47k
47k
0.5φ
3.2φ
2.5t
56p
0.5φ
3.2φ
3.3k VL
5.5t 51
51 VH
1n
1n
47k
0.5p (UK) 47k
1T363 68p (RH)
VL/VH SW
4p
1T362 16p
47k
1n
1p (UK)
22
24 23 22 21 20 19 18 17 16 15 14 13
CXA3025N
1 2 3 4 5 6 7 8 9 10 11 12
L1
51p 51p
1n 1n
1n 1n
4.7µ 1n
+9V
VHF IN
UHF IN
Inductance constant
L without indication is an air-core coil of 0.5mm diameter.
–5–
5 Page 
IF OUT Impedance
j50
j25 j100
60MHz
0
45MHz
50 30MHz
–j25 –j100
–j50
PLL OUT Impedance
j50
j25 j100
CXA3025N
0
–j25
50 135MHz
850MHz
470MHz
–j50
– 11 –
–j100
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet CXA3025N.PDF ] | |
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