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PDF CXA3627N Data sheet ( Hoja de datos )
| Número de pieza | CXA3627N | |
| Descripción | All Band Tuner IC | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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All Band Tuner IC with On-chip PLL
CXA3627N
Description
The CXA3627N 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
• Low power consumption (5V, 63mA typ.)
• Low noise figure, low distortion characteristics
• High gain/low gain selectable
• Supports IF double-tuned/adjacent channel trap
• Balanced oscillator circuits with excellent oscillation
stability
• On-chip PLL supports I2C bus
• On-chip high voltage drive transistor for charge
pump
• Frequency step selectable from 31.25, 50 or
62.5kHz (when using a 4MHz crystal)
• Low-phase noise synthesizer
• On-chip 4-output band switch (output voltage: 5V,
current capacity: 13mA)
• 30-pin SSOP small package
• UHF band switch output switchable
Absolute Maximum Ratings
• Supply voltage
VCC
• Operating temperature Topr
• Storage temperature Tstg
• Allowable power dissipation
PD
–0.3 to +5.5
–25 to +75
–55 to +150
V
°C
°C
580 mW
Operating Conditions
Supply voltage
VCC
4.75 to 5.30
V
Applications
• TV tuners
• VCR tuners
• CATV tuners
Structure
Bipolar silicon monolithic IC
Note: This IC has 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–
E02715A2Y-PS
1 page  
www.DataSheet4U.com
Pin
No.
Symbol
Pin voltage
[V]
7
5 IFIN1
5
6
Equivalent circuit
1.6k
2.0
6 IFIN2
CXA3627N
Description
IF inputs.
These pins must be connected
to the mixer outputs via
coupling capacitance.
7 VCC
—
8 MIXOUT1
9 MIXOUT2
—
89
Power supply.
Mixer outputs.
These pins output the signal in
open collector format, and they
must be connected to the
power supply via a load.
10 GND1
—
11 VHFIN
2.4 during
VHF reception
0.0 during
UHF reception
7
11
3k
12 BYP
3.8
(when open)
14 UHFIN1
15 UHFIN2
0.0 during
VHF reception
2.3 during
UHF reception
7
14
15
10k
15p 100
3k
12
Analog circuit GND.
VHF input.
The input format is unbalanced
input.
VHF input GND and selection
of band switching.
GND: BS4 UHF
Open: BS3 UHF
3k 3k
UHF inputs.
Input a balanced signal to
Pins 14 and 15, or ground
either of Pin 14 or 15 with a
capacitor and input the signal
to the other pin.
–5–
5 Page 
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Item
Bus timing (I2C bus)
SCL clock frequency
Start waiting time
Start hold time
Low hold time
High hold time
Start setup time
Data hold time
Data setup time
Rise time
Fall time
Stop setup time
CXA3627N
Symbol Measurement conditions Min. Typ. Max. Unit
fSCL
tW;STA
tH;STA
tLOW
tHIGH
tS;STA
tH;DAT
tS;DAT
tR
tF
tS;STO
0
1300
600
1300
600
600
0
600
600
400 kHz
ns
ns
ns
ns
ns
900 ns
ns
300 ns
300 ns
ns
– 11 –
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet CXA3627N.PDF ] | |
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