參數(shù)資料
型號(hào): MC44BC375UADEVK
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 13/16頁(yè)
文件大?。?/td> 0K
描述: KIT KIT FOR BC375UA AUD/VID MOD
標(biāo)準(zhǔn)包裝: 1
類型: *
適用于相關(guān)產(chǎn)品: *
所含物品: *
Application Specific Products
6
Freescale Semiconductor
MC44BC375U
PERFORMANCE CHARACTERISTICS
Unless otherwise stated, all performance characteristics
are for:
Power Supply, VCC = 5.0 V
Ambient Temperature, TA = 25
o C
Video Input 1.0 Vp-p, 10-step grayscale.
RF inputs/outputs into 75
load.
NOTE:
Specifications only valid for envelope demodulation.
The parameters listed are based on the type of test condi-
tions found in the column Type.
A = 100% tested
B = 100% Correlation tested
C = Characterized on samples
D = Design parameter
page 8 for each C type parameter.
Table 6. High Frequency Characteristics
Parameter
Test Conditions(1)
1. See Performance Measurement Test Set-ups, Table 9.
Device
Min
Typ
Max
Unit
Type
RFOUT output level
Output signal from modulator
section
MC44BC375U
MC44BC375UA
74
78
76
80
79
83
dB
V
B
Sound subcarrier harmonics (Fp
+nFs)
Reference picture carrier
MC44BC375U
MC44BC375UA
.73
-72
-65
.65
dBc
C
Second harmonic of chroma subcarrier
Using red EBU bar
MC44BC375U
MC44BC375UA
-65
-55
-60
dBc
C
Chroma/Sound intermodulation:
Fp
+ (Fsnd - Fchr)
Using red EBU bar
MC44BC375U
MC44BC375UA
-65
-60
dBc
C
Fo (picture carrier) harmonics(2)
2. Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors.
2nd harmonic
MC44BC375U
MC44BC375UA
30
42
46
dB
V
C
3rd harmonic:
MC44BC375U
MC44BC375UA
66
69
73
dB
V
C
Out band (picture carrier) spurious
1/2
Fo - 1/4Fo -
3/2
Fo - 3/4Fo
MC44BC375U
MC44BC375UA
27
32
dB
V
C
In band spurious (Fo @ 5.0 MHz)
No video sound modulation
MC44BC375U
MC44BC375UA
-70
-62
-60
dBc
C
4.0 MHz Crystal spurious (Fo ± 4.0 MHz) No video sound modulation
MC44BC375U
MC44BC375UA
-82
-75
dBc
C
Table 7. Video Performance Characteristics
Parameter
Test Conditions(1)
1. See Performance Measurement Test Set-ups, Table 9.
Min
Typ
Max
Unit
Type
Video bandwidth
Reference 0 dB at 100 KHz, measured at 5.0 MHz
-1.5
-0.5
dB
C
Video input level
75
load
1.5
Vcvbs
D
Video input current
0.2
1.0
A
Video input impedance
500
K
A
Video S/N
Weighted
56
60
dB
C
Unweighted
49
52
C
Differential Phase
On line 17 in M standard (FCC)
±1.0
deg
C
Differential Gain
On line 17 in M standard (FCC)
1.0
5.0
%
C
Luma/Sync ratio
Input ratio 7.0:3.0
6.8/3.2
7.2/2.8
B
Video modulation depth
Video input level = 1.0 VCVBS
80
85
90
%
B
Peak White Clip
Video Modulation depth for video = 1.4 VCVBS
90.5
95
99.5
%
B
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