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PDF CXA3219M Data sheet ( Hoja de datos )
| Número de pieza | CXA3219M | |
| Descripción | UHF-Band RF Modulator for VCR | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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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
1 page  
CXA3219M
Electrical Characteristics 2
1. Video S/N
50dB (min.), 58dB (typ.)
2. Video amplitude frequency characteristics
(at 1MHz reference)
Within ±1dB at 0.5 to 5MHz
3. APL variation (Normalized to APL 50%) Within ±2% at 10 to 90%
4. Pin 5 input impedance
1MΩ and above
5. Pin 8 input impedance
1MΩ and above
∗1 Spectrum analyzer with 50Ω input impedance should be used to test video output level. Measured value Vo
(dBm) is used to calculate output according to the following relationship:
Output (dBµ) = Vo (dBm) + 107
50Ω terminal direct reading value
∗2 Measured after demodulating by standard demodulator.
∗3 fc + 2MHz component of V1 carrier (fc) level.
∗4 Adjust the V2 level to obtain an FM deviation of ±30kHz and measure the harmonic distortion after
demodulating Vo with a standard demodulator.
∗5 Video determined by measuring ratio (dB) of chroma beat to video carrier level when V1 = no signal by
spectrum analyzer.
∗6 R1 (12kΩ) of the Electrical Characteristics Test Circuit is added for obtaining a better match between the
audio modulation sensitivity classifications and the actual pre-emphasis.
Input Waveform
FLAT FIELD signal
V white
100 IRE
V sync
40 IRE
63.5µs
STAIR STEP signal
APL 50% subcarrier 20 IRE
63.5µs
90 IRE
0.5Vp-p
40 IRE
–5–
5 Page 
CXA3219M
Ambient temperature vs. Chroma beat
100
90
80
C.C.I.R
35ch: 583.25MHz
70 45ch: 663.25MHz
55ch: 743.25MHz
60
Ambient temperature vs. Differential gain
20
C.C.I.R
35ch: 583.25MHz
16 45ch: 663.25MHz
55ch: 743.25MHz
12
8
4
50
–20
0 20 40 60
Ta – Ambient temperature [°C]
80
Ambient temperature vs. Differential phase
20
C.C.I.R
35ch: 583.25MHz
45ch: 663.25MHz
10 55ch: 743.25MHz
0
–10
0
–20
0 20 40 60
Ta – Ambient temperature [°C]
80
Ambient temperature vs. Audio distortion
1.0
C.C.I.R
35ch: 583.25MHz
0.8 45ch: 663.25MHz
55ch: 743.25MHz
0.6
0.4
0.2
–20
–20
0 20 40 60
Ta – Ambient temperature [°C]
80
Ambient temperature vs. Audio S/N ratio
70
C.C.I.R
35ch: 583.25MHz
45ch: 663.25MHz
60 55ch: 743.25MHz
50
40
0
–20
0 20 40 60
Ta – Ambient temperature [°C]
80
Ambient temperature vs. Sync crush level
15
C.C.I.R
40ch: 623.25MHz
10
5
0
–5
30
–20
0 20 40 60
Ta – Ambient temperature [°C]
–10
80 –20
– 11 –
0 20 40 60
Ta – Ambient temperature [°C]
80
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet CXA3219M.PDF ] | |
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