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BAVI-8002型
三时基校正、8×2无抖动视音频矩阵切换器
无时基校正、8×2普通型视音频矩阵切换器
视频指标测试报告
⑴ 测试设备:美国泰克公司产TSG111视频信号源;VM101视频自动测试仪。
⑵ 通道接口:视频输入 :1Vp-p/75Ω BNC
视频输出 :1Vp-p/75Ω BNC
音频输入 :高阻不平衡 RCA
音频输出 :低阻不平衡 RCA
断电后,第1路和第2路的视频和音频信号输入与输出直通。
⑶ 无时基型视频信号测试结果:
DIFF PHASE 0.2°
DIFF GAIN 0.6%
YC DELAY 5ns
YC GAIN 101%
SNR(WGT) 67db
FREQ(AVG) ±0.1db/5.8MHz
GRPDLYmax 10ns
GRPDLYmin -4ns
SYNC AMP 296mv
BUST AMP 299mv
BAR AMP 694mv
2T K-FACTOR 0.3%
LUM NON-LIN 0.3%
⑷ 时基校正型视频信号测试结果:
DIFF PHASE 1.9°
DIFF GAIN 1.7%
YC DELAY 97ns
YC GAIN 103%
SNR(WGT) 67db
FREQ(AVG) ±2.5db/5.8MHz
GRPDLYmax 52ns
GRPDLYmin -10ns
SYNC AMP 303mv
BUST AMP 310mv
BAR AMP 710mv
2T K-FACTOR 0.7%
LUM NON-LIN 2.3%