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PDF CXA1929M Data sheet ( Hoja de datos )
| Número de pieza | CXA1929M | |
| Descripción | TV RF MODULATOR/PLL | |
| Fabricantes | Sony Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CXA1929M (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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CXA1929M
TV RF MODULATOR/PLL
For the availability of this product, please contact the sales office.
Description
Fully synthesized I2C controlled UHF/VHF TV RF
24 pin SOP (Plastic)
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 125
kHz steps
• ATT Driver
• I2C control of:
a. Video RF Carrier Frequency
b. Sound Carrier Frequency
c. Modulation Depth (±2.5 % Typ.)
d. FM Deviation (±7 % Typ.)
e. P/S ratio (±1 dB Typ.)
f. Nicam output enable to sleep
g. Video RF carrier enable to sleep
• On chip Regulator 3.1 V
Block Diagram
Applications
• PAL and NTSC System VCR
• Satellite Receiver
• Set Top Box
Structure
Bipolar silicon monolithic IC
Recommended Operating Voltages (Ta=25 °C)
• Supply voltage
VCC 5.0±0.5 V
• Supply for VCO Varactor
–30 to +0.5 °C
• Operating Temperature
–10 to +80 °C
24 23 22 21 20 19 18 17 16 15 14 13
AMP
VIDEO
MIXER
W/C-CLAMP
REG
FM-OSC
AMP
VCO
TPSG
PLL
OSC
PLL
PLL
I2C-Interface
ATT
Driver
1 2 3 4 5 6 7 8 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.
—1—
E96514-TE
1 page  
CXA1929M
Software Application Notes
The minimum requirement to drive the CXA3050 and I2C bus drive is a 386/486 with 4 M bytes hard disk
space, 16 MHz clock speed and running DOS5.00 or above. Insert the disc into the drive and type TESTS and
at the prompt type iic. At this there should appear a single list of user friendly functional tests that can be
changed by keyboard manipulation. As an aid the test list is written below. Note Page up increments the
status, page down decrements the status.
Function
RF Output Power
Delta Sound
Fsound
Frequency mode
Mod depth
FM deviation
P/S Ratio
Over Mod
TPSG
OSC on.
Normal Status
1/0
1
0
2 to 8191
4
4
4
1/0
1/0
Comments
Turns RF Amp on/off
Fine tune audio carrier
Course adjust for
4.5 MHz (0)
5.5 MHz (1)
6.0 MHz (2)
6.5 MHz (3)
Check listing on page 10 for
frequency to hex conversation
Ranges mod depth from
72 % to (4)
Sensitivity adjustable
Programmable in 8 steps of 1 dB
Increase Video modulation ratio
Sets internal test pattern
generator ON/OFF
1/0 Turns oscillator ON/OFF
Attenuator Driver
1/0 Output logic ON/OFF
—5—
5 Page 
CXA1929M
Video Characteristics
Parameter
Condition
Min. Typ. Max. Unit
Input resistance
30 100
kΩ
Input voltage
80 % Modulation
0.46 Vp-p
% Modulation Clipping
93 97 %
I2C control index
7 steps
2
±0.4
%
Modulation flatness
Band Limited (46 CH to 60 CH)
±1 %
Modulation
0.46 p-p input (mod Adja)
73 80 87 %
mp (Ta = –10 to 80 °C)
Modulation stability by temperature
–mp (Ta = 25 °C)
±3 %
Field time distortion
0 0.5 2 IRE
Line time distortion
0 0.5 2 IRE
S/N
Weighted
–66 –60
dB
K Factor
With 2T pulse
2%
Video frequency response
Per standard
0
±0.5
dB
TPSG modulation
TPSG ON
65 73 81 %
Sync crush level
0 1 5%
Audio Characteristics
Parameter
Input Voltage
Input resistance
Deviation range
Audio distribution
Deviation sensitivity
adj=(3)
Audio SNR
Harmonic distortion
Frequency response
FM Hum and noise
Condition
@50 kHz, Deviation
4.5 MHz
System M
4.5 MHz ±25 kHz=100 %=0 dB
System B/G
5.5 MHz ±50 kHz=100 %=0 dB
System I
6 MHz ±50 kHz=100 %=0 dB
System D/K
6.5 MHz ±50 kHz=100 %=0 dB
Quasi-Parallel, Detection
50 to 100 %, Deviation
50 to 15 kHz
25 to 75 kHz, Deviation
Min.
0.1
20
±10
0.354
0.263
0.334
0.399
–1
Typ.
0
0.407
0.303
0.384
0.459
Max.
±100
±15
Unit
Vp-p
kΩ
kHz
%
0.468 kHz/mV
0.348 kHz/mV
0.441 kHz/mV
0.528 kHz/mV
–60 dB
1%
+1 dB
±5 kHz
—11—
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet CXA1929M.PDF ] | |
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