CXA3050M
NICAM and SMATV RF MODULATOR/PLL
Description
Fully synthesized I
2
C 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
•
Accepts NICAM 6.552MHz QPSK input signal
•
Accepts FM Stereo input signal
•
I
2
C control of:
a. Video RF Carrier Frequency
b. Sound Carrier Frequency
c. Modulation Depth (±2% Typ.)
d. FM Deviation (±8% Typ.)
e. P/S ratio (±1dB Typ.)
f. Nicam output enable to sleep
g. Video RF carrier enable to sleep
•
On chip Regulator 3.1V
Block Diagram
Analog GND
Analog V
CC
NICAM-in
OSC V
CC
24 pin SOP (Plastic)
Structure
Bipolar silicon monolithic IC
Applications
•
PAL and NTSC System VCR
•
Satellite Receiver
•
Set Top Box
•
SMATV
Recommended Operating Voltages
(Ta = 25°C)
•
Supply voltage
V
CC
5.0 ± 0.5
V
•
Supply for VCO Varactor
30 ± 0.5
V
•
Operating Temperature
–10 to +80 °C
RF-OUT
OSC GND
OSC4
OSC1
OSC2
PDout
14
PLL
PLL
11
OSC3
24
23
22
21
20
19
18
17
16
15
13
AMP
NICAM
MIXER
VIDEO
MIXER
AMP
VCO
AMP
TPSG
W/C-CLAMP
FM-OSC
REG
PLL
OSC
I
2
C-Interface
1
2
3
4
5
6
7
8
9
10
12
Vreg
Digital-V
CC
Mod-adj
Digital GND
Audio-Loop
filter
Video-in
Audio-in
SCL
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.
FM-Tank
–1–
SDA
Xtal
NC
EF
E96331A66-ST
SONY [ SONY CORPORATION ]
