CXA3050M
NICAM and SMATV RF MODULATOR/PLL
Description
24 pin SOP (Plastic)
Fully synthesized I2C controlled UHF/VHF TV RF
Modulator compatible with PAL and NTSC video
formats.
Features
• Minimal adjustment of external components
• For use on VHF and UHF TV Frequencies
• Video RF carrier frequency programmable in 125kHz
steps
Structure
• Accepts NICAM 6.552MHz QPSK input signal
• Accepts FM Stereo input signal
• I2C control of:
Bipolar silicon monolithic IC
Applications
a. Video RF Carrier Frequency
b. Sound Carrier Frequency
c. Modulation Depth (±2% Typ.)
d. FM Deviation (±8% Typ.)
• PAL and NTSC System VCR
• Satellite Receiver
• Set Top Box
• SMATV
e. P/S ratio (±1dB Typ.)
f. Nicam output enable to sleep
g. Video RF carrier enable to sleep
• On chip Regulator 3.1V
Recommended Operating Voltages (Ta = 25°C)
• Supply voltage
VCC
5.0 ± 0.5
30 ± 0.5
V
V
• Supply for VCO Varactor
• Operating Temperature
–10 to +80 °C
Block Diagram
19
18
TPSG
7
14
13
23
22
21
17
16
15
24
20
NICAM
MIXER
AMP
AMP
AMP
VCO
PLL
VIDEO
MIXER
W/C-CLAMP
PLL
I2C-Interface
FM-OSC
PLL
REG
OSC
8
1
2
3
4
5
6
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.
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E96331A66-ST
SONY [ SONY CORPORATION ]
