参数资料
型号: MC44BS374T1EF
厂商: Freescale Semiconductor
文件页数: 2/34页
文件大小: 0K
描述: IC AUDIO/VIDEO MODULATOR 16-SOIC
标准包装: 48
类型: NTSC/PAL 调制器
应用: 音频/视频,VCR,机顶盒
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC N
包装: 管件
MC44BS374T1/374T1A Advance Information
MC44BS374T1A High Frequency Characteristics
11 MC44BS374T1A High Frequency Characteristics
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25
o C, Video Input 1V
p-p, 10-step grayscale.
RF inputs/outputs into 75Ohm load.
NOTE:
Specifications only valid for envelope demodulation.
Table 3. High Frequency Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Type
TVOUT output level
Output signal from modulator section
See Figure 3. See Note 2
79
82
85
dB
V
B
UHF oscillator frequency
460
-
880
MHz
A
VHF range
From UHF oscillator internally divided
45
-
460
MHz
B
TVOUT output attenuation
During transient output inhibit, or
when ATT bit is set to 1. See
See Note 2
65
75
-
dBc
B
Sound subcarrier harmonics
(Fp
+nFs)
Reference picture carrier. See Note 2
50
63
-
dBc
C
Second harmonic of chroma
subcarrier
Using red EBU bar. See Note 2
45
70
-
dBc
C
Chroma/Sound intermodulation:
Fp
+ (Fsnd - Fchr)
Using red EBU bar.See Note 2
65
82
-
dBc
C
Fo (picture carrier) harmonics
2nd harmonic: CH21
3rd harmonic: CH21
Other channels: See Figure 3.
See NOTE 1. See Note 2
-
38
58
50
70
dB
V
C
Out band (picture carrier)
spurious
1/2
Fo - 1/4Fo - 3/2Fo - 3/4Fo
From 40MHz to 1GHz. See Note 2
-
10
dB
V
C
In band spurious (Fo @5MHz)
No video sound modulation.See Note
2
65
75
-
dBc
C
Note:
1: Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors.
Note:
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For More Information On This Product,
Go to: www.freescale.com
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