1 Application
1.1 This specification applies to VIDEO-RF modulator with sound subcarrier
processing signals.
1.2 RF transmission frequency group (Optional)
BX to GND/OPEN:
Ch1 2414/2490MHz
Ch2 2432/2510MHz
Ch3 2450/2390MHz
Ch4 2468/2370MHz
1.3 Modulation type FM
2 Mechanical Specification
PCB Dimension:
PCB Size: L×W: 24.638mm × 34.925mm
Top Layer:
3 Environmental Specification
3.1 Temperature -10℃ ~ +60℃
4 Test Condition
4.1 Ambient temperature:25℃
4.2 Video input voltage:1.0Vp-p.
4.3 Audio input voltage:1.0Vp-p sine wave signal 1KHz
5 Electrical characteristic
No. | Item | specifications | Unit | Test Condition | ||
MIN | TYP. | MAX | | |||
5.1.RW67TX DC Characteristics | ||||||
1 | Supply Voltage | 4.75 | 5V | 5.25 | VDc | |
2 | Current Consumption | | 110 | 125 | mA | |
5.2 Video Characteristics | ||||||
1 | Input Impedance | | 75 | | Ω | |
2 | Peak Deviation | | 1.2 | | MHz | MOD=sine wave 400khz 1Vp-p |
No. | Item | specifications | Unit | Test Condition | ||
MIN | TYP. | MAX | | |||
5.3 Audio Characteristics | ||||||
1 | Input Impedance | | 10 | | KΩ | |
2 | Peak Deviation | | 12 | | KHZ | 1Vp-p(1khz) |
3 | Pre-emphasis | | 50 | | μsec | |
5.4 Output characteristic(TX/RF)
5.4 RW67TX Output characteristic(TX/RF) | |||||||
1 | Tx Power | | 17 | | dbm | | |
2 | Audio subcarrier Lever | -23 | -25 | -27 | Dbc | Video and Audio index | |
3 | Audio subcarrier Freq. NCY | L | 5970 | 6000 | 6030 | KHZ | |
R | 6470 | 6500 | 6530 |
6 Pin Assignment
J1 Pin No. | Slide Mode | J2 Pin No. | Slide Mode |
1 | GND | 1 | GND |
2 | Video | 2 | ANT |
3 | GND | 3 | GND |
4 | Audio L(6.5M) | 4 | BX(Connect GND for 2.4GHZ band) |
5 | GND | 5 | Channel selection 2/DATA(SPI) |
6 | Audio r(6.5M) | 6 | Channel selection 1/LE(SPI) |
| | 7 | Channel selection 0/CLK(SPI) |
| | 8 | Vcc (+5V) |
Remark:
Group1,the pin 4(BX) of J2 tie to GND:
Transmission frequency | Contents(for J2) |
2490MHZ(CH1) | Pin 7 tie to GND,Pin5 and Pin6 open |
2510MHZ(CH2) | Pin 6 tie to GND,Pin5 and Pin7 open |
2390MHZ(CH3) | Pin 5 tie to GND,Pin6 and Pin7 open |
2370MHZ(CH4) | Keep Pin5,Pin6 and Pin7 open |
Group2, keep the pin 4(BX) of J2 open:
Transmission frequency | Contents(for J2) |
2414MHZ(CH1) | Pin 7 tie to GND,Pin5 and Pin6 open |
2432MHZ(CH2) | Pin 6 tie to GND,Pin5 and Pin7 open |
2450MHZ(CH3) | Pin 5 tie to GND,Pin6 and Pin7 open |
2468MHZ(CH4) | Keep Pin5,Pin6 and Pin7 open |