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PDF RMUP74055AD Data sheet ( Hoja de datos )
| Número de pieza | RMUP74055AD | |
| Descripción | RF MODULATOR | |
| Fabricantes | WANSHENG | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RMUP74055AD (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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TO :
SPECIFICATION
PRODUCT : RF MODULATOR
MODEL : RMUP74055AD
SAMSUNG ELECTRO - MECHANICS CO.,LTD.
MAIN FACTORY
ADD : 314, MEATAN-3 DONG , PALDAL-GU, SUWON-CITY, KYOUNGKI0DO, KOREA
TEL : 82-31-210-3011 , 6025
FAX : 82-31-210-6380 , 6385
CHINA FACTORY
ADD : 27. HEINIU CHENG-ROAD TIANJIN CHINA
TEL : 86-22-2830-3333 (EXT.310) FAX : 86-22-2830-7436
e-mail address
1 page  
SPECIFICATIONS
RMUP74055AD
sheet 4 of 12
4-2. Sound system characteristics
parameter
4-2-1 Input impedance
4-2-2 Modulation
4-2-3 Max modulation
4-2-4 Amplitude frequency
response
4-2-5 Distortion factor
specification
min typ max
10
70 90 110
180
-3 2
2
unit
remark
KΩ Measure at 0.1 ~ 10KHz
% 100% = ±50KHz
%
dB Measure deviation from
theoretical value of
50usec pre-emphasis
character over a range
of 100Hz TO 10KHz with
1KHz as reference.
% Audio input signal :
1.23Vp-p sine wave 1KHz
modulation 90%
Video input signal :
all black (sync. only)
USE standard demodulator
of inter-carrier system
de-emphasis (50usec:PAL)
is ON.
4-2-6 S/N
48 57
dB The same as 4-2-5
SAMSUNG ELECTRO-MECHANICS CO.,LTD.
5 Page 
6-2. I2C-bus Programming
SPECIFICATIONS
RMUP74055AD
sheet 10 of 12
6-2-1. WRITE MODE
SOUND
SFD1 SFD0
Sound sub carrier frequency [MHz]
00
4.5
01
5.5
10
6
11
6.5
PS Picture to Sound Ratio [dB]
0 12
1 16
SO Sound Oscillator
0 Sound Oscillator ON (Normal mode)
1
UHF
Sound Oscillator Disabled(PLL sections bias turned OFF)
OSC UHF Oscillator
0 UHF Oscillator Disabled(PLL sections bias turned OFF)
1 Normal operation
ATT Modulator Output Attenuation
0 Normal operation
1 Modulator Output Attenuated
(Video and Sound Modulators sections bias turned OFF)
STANDBY MODE
OSC SO ATT
Combination of these 3 bits
Modulator Stanby mode(Sound & UHF Osc., Sound & Video
0 1 1 Mod. Sections bias turned OFF, and I2C bus sections
stanby mode)-BST is active
6-2-2. READ MODE
OOR
0 Normal operation : VCO is in range
1 VCO is out of range
Y1
0 VCO is out of range, freq too low ; Only valid if OOR = 1
1 VCO is out of range, freq too high ; Only valid if OOR = 1
Y2
0 High VCO is active
1 Low VCO is active
SAMSUNG ELECTRO - MECAHANICS CO., LTD.
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet RMUP74055AD.PDF ] | |
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