Digital CATV chip RT930 and RT990

Test items

request

Measurement results

Measurement method

Frequency range

85~1000MHz

85~1000MHz

GY/T 300-2016, No. 6.1

Input light wavelength

1290~1600nm

1550nm


Optical connector form

SC/APC

SC/APC


The optical receiver input optical power range

-11~0dBm

-18~+2dBm


Optical receiver RF output level (AGC range)

≥70dBuV

77dBuV@-16~+2dBm

78dBuV@-15~+2dBm


System RF output reflection loss

≥14dB

14.2dB

GB/T 11318.1-1996

Section 4.2.2.2.5

RF output impedance

75±3ohm

75ohm


Link flatness (full band)

±2dB

±1.5dB

@-16~+2dBm

GY/T 300-2016,No. 6.1

MER*

≥32dB@-11dBm

37.5@251MHz

37.2@435MHz

36.8@618MHz

37.8@842MHz

GY/T 300-2016,No. 6.5

BER*

≤1×10E-4@-11dBm

1.00E-9@251MHz

1.00E-9@435MHz

1.00E-9@618MHz

1.00E-9@842MHz

GY/T 300-2016,No. 6.6

Analog TV Channel C/N*

≥45dB@-11dBm

45

GY/T 143-2000,No. 6.2.3

Analog TV Channel C/CTB*

≥60dB@-11dBm

62

GY/T 143-2000,No. 6.2.5

Analog TV Channel C/CSO*

≥60dB@-11dBm

64

GY/T 143-2000,No. 6.2.6

*: 11 PAL_D analog TV channels in all channels (Z1-Z7, DS6-DS9) in the 111-199MHz band, 91 QAM64 digital channels in all channels (DS10-DS65, Z8-Z42) in the 199~926MHz band, and the digital level is 10dB lower than the analog carrier level, and the system slope is 0±1dB.


数字化CATV芯片RT930和RT990

数字化CATV芯片RT930和RT990

数字化CATV芯片RT930和RT990