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Sony Semiconductor Electronic Components Datasheet

CXA3219M Datasheet

UHF-Band RF Modulator for VCR

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CXA3219M pdf
UHF-Band RF Modulator for VCR
CXA3219M
Description
The CXA3219M is a UHF-band RF modulator which
converts the frequency of audio and video signals.
Some circuits which comprise this IC are a UHF
oscillator video clamp, white clip, video modulator,
audio FM modulator and an intercarrier SW.
16 pin SOP (Plastic)
Features
Low voltage of 5V
Wide bandwidth 470 to 750MHz
UHF oscillator greatly reduces external parts
Sharp white clip circuit
Built-in voltage regulator can accept large fluctuation
of supply voltage
Video input of 0.5Vp-p for general-purpose use
Mixer simplifies RF unit design
Picture/sound ratio is adjustable with external parts
Intercarrier switch
Applications
PAL system VCR
Absolute Maximum Ratings
Supply voltage
VCC
Operating temperature Topr
Storage temperature
Tstg
Allowable power dissipation PD
7V
–20 to +75 °C
–55 to +150 °C
350 mW
Structure
Bipolar silicon monolithic IC
Recommended Supply Voltage Range
Supply voltage
VCC 5.0 ± 0.5
V
Block Diagram and Pin Configuration
16 15 14 13 12 11 10 9
AMP
VIDEO
MIXER
UHF
OSC
FM-OSC
REG
W/C-CLAMP
1 2 3 4 56 78
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–
E97X19-PS


Sony Semiconductor Electronic Components Datasheet

CXA3219M Datasheet

UHF-Band RF Modulator for VCR

No Preview Available !

CXA3219M pdf
Pin Description and Equivalent Circuit
Pin
No.
Symbol
1 GND1
Typical pin
voltage [V]
Equivalent circuit
2 P/S ADJ
1.8
2
740
11.4k
3 T1/T2 SW
2.4
4 REG OUT
4.1
53.8k
3
37.6k
75k
4
12.5k
CXA3219M
Description
GND for RF/audio.
P/S adjustment (Adding a
capacitor between Pin 2 and
GND increases P/S ratio.)
Video modulation depth
adjustment (Adding a resistor
between Pin 2 and GND
increases the modulation
depth; adding a resistor
between Pins 2 and 4
decreases the modulation
depth.)
T1/T2 SW.
T1 for GND.
T2 for OPEN.
Regulator output.
5 AUDIO IN
0
22.5k
6 TANK1
3.1
6
6.4k
1.6k
Audio input.
5
5.5MHz audio tank coil
connection.
–2–


Part Number CXA3219M
Description UHF-Band RF Modulator for VCR
Maker Sony Corporation
Total Page 15 Pages
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