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參數(shù)資料
| 型號(hào)： | KA2985BD |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | UHF RF Modulator(UHF射頻調(diào)節(jié)器) |
| 中文描述： | 超高頻射頻調(diào)制器（超高頻射頻調(diào)節(jié)器） |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 69K |
| 代理商： | KA2985BD |
KA2985BD UHF RF MODULATOR
8
MM-97-D015
98-05-12
SPECIFICATION(VER 1)
ELECTRICAL CHARACTERISTICS
(VCC=5V, Ta=25
, fp=591.25MHz
2
1MHz, fs=5.5MHz/6.0MHz/ 6.5MHz)
Characteristics Symbol Test Condition Min. Typ. Max.
Unit
Video Characteristics
Modulation Depth Mp 0.9Vp-p 100% White Signal 75 81 87 %
Video Signal to Noise Vs
/
n
Measured by S/N Meter 50 -- -- dB
Weight off, MOD 80%
APL
Max.Modulation Depth Mpmax Input=1.5Vp-p Signal 86 -- 97 %
Sync Crush Level Vv/s 0.9Vp-p 100% White Signal -- -- 10 %
{1-(Vsync/Vwhite)*2.5}*100%
Amplitude Frequency Response Vfr SIN 0.9Vp-p, 0.5MHz ~ 5MHz -2 0 +2 dB
Reference : 1 MHz
Differential Gain DG 0.9Vp-p, Stair Step Signal -- 2 5 %
Differential Phase DP 0.9Vp-p, Stair Step Signal -- 2 5 deg
Audio Characteristics
Max FM Modulation Depth Msmax Audio Signal=5Vp-p, SIN 1KHz 350 -- 650 %
2nd High Harmonic Level Vs2 Refer to Note 2 46 50 -- dB
Signal to Noise Ratio As/n Audio Signal=1.0Vp-p, SIN 1KHz 50 -- -- dB
FM Modulation Depth Ms Audio Signal=1.0Vp-p, SIN 1KHz
75 -- 110
%
(
2
50 KHz = 100%)
FM Distortion Athd Audio Mod.Depth=60% -- 0.3 1.0 %
Amplitude Frequency Response Afr SIN 1.0Vp-p, 20Hz ~ 10KHz -2 0 +2 dB
(Ref = 1KHz)
Output Characteristics
RF Output Level Vo Without Video & Audio Signal 79.0 81.5 84.0
dBuV
Picture/Sound Ratio P/S Without Video & Audio Signal 10.0 12.5 15.0 dB
Chroma Beat Vcb Refer to Note 3 61 -- -- dB
RF 2nd Harmonic Level (Note 4) Vo2 25 -- -- dB
In Band Spurious (Note 4) Vis 53 58 -- dB
Freq. Drift as Voltage F Vcc=4.5V ~ 5.5V 0 -- +200 KHz
Note 4: These are only for IC design guarantee items, not for test guarantee items of mass production.
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