Optical Parameters

Receiver Type

Photodiode with brand name from G7/EU or Korea countries

Amplifier Type

MMIC with brand name from G7/EU countries or Korea or Taiwan

Input Wavelength (nm)

1310, 1490, 1550

CATV Wavelength (nm)

1550 ± 10

Output Wavelength (nm)

1310, 1490

Channel Isolation (dB)

≥ 40 (between 1310/1490nm and 1550nm)

Input optical Power (dBm) (1550nm)

-10 ~ -2, or larger range

Optical return loss (dB)

≥ 45

Fiber connector

SC/APC

RF Parameters

Bandwidth (MHz)

82-862, or larger range

Output level (dBmV)

≥ 20 per channel, with optical input: -7 ~ -2 dBm

Output level adjust (dB)

0 ~ -15

Flatness (dB)

≤ ± 0.75

Return loss (dB)

≥ 14

Impedance

75 Ω

RF output connector

At least 1 output port, F female type

Link performance

77 NTSC / 59 PAL analog channels

CNR ≥ 50 dB (0 dBm optical input)

or CNR ≥ 49 dB (-1 dBm optical input)

or CNR ≥ 48 dB (-2 dBm optical input)

CSO ≥ 60 dB, CTB ≥ 60 dB

Others

Power supply requirements

- Using the external AC/DC adapter, switching mode power supply, with AC input: 100-240 VAC, 50/60Hz, or larger

- Follow the latest SCTV technical standards of external power supplies for end devices or meet at least the following requirements:

• Electrolytic capacitor for output with withstand voltage must be at least 1.5 times of output voltage
• DC output power: be at least 1.5 times of actual power consumption of respective end device
• Output ripple: ≤ ±1.5%
• International standard of efficiency, level V

Operational Temp. (oC)

0. ~ 40, or larger