MC44BC373C/374C Technical Data

Video Characteristics

10 Video Characteristics

RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION.

Figure 4. Typical Performances

Parameter

Test Conditions

Min

Typ

Max

Unit

Type

Video bandwidth

Reference 0dB at 100kHz,

measured at 5MHz. See Note 2

–1.5

–0.8

—

dB

C

Video input level

75Ohm load

—

—

1.5Vcvbs

D

Video input current

—

0.2

1

µAA

Video input impedance

500

—

—

K

Ω

A

Peak White Clip

PWCbit setto 1,see PWCsection.

SeeNote2

110

114

118

%

A

Video S/N

No sound modulation,100% white video

Using CCIR Rec.567 weighting filter

See Figure 4. See Note 2

50

53

—

dB

C

Unweighted. See Note 2

45

—

—

C

Differential Phase

CCIR Test Line 330, worst case from the

first 4 steps out of 5. See Note 2

–5

—

5

deg

C

Differential Gain

CCIR Test Line 330, worst case from the

first 4 steps out of 5. See Note 2

–5

—

5

%

C

Luma/Sync ratio

Input ratio 7.0:3.0

6.8/

3.2

—

7.2/

2.8

—B

PAL video modulation depth

See Figure 4. See Note 2

75

81

88

%

B

SECAM video modulation depth

MC44BC373C only - See Figure 4. See

Note 2

88

93

99

%

B

V ide o Sign a l t o Nois e

48

50

52

54

56

58

471 521 571 621 671 721 771 821 871

Fr e q u e n c y ( M h z )

PA L V id e o M o du latio n De pt h

74

76

78

80

82

84

86

88

90

471 521 571 621 671 721 771 821 871

Fr e q u e n cy (M h z )

SEC A M V id e o M odulatio n De pth

86

88

90

92

94

96

98

100

471 521 571 621 671 721 771 821 871

Fr e que ncy ( M h z)

Typical

Typical

Typical

Minimum specification

Maximum specification

Maximum specification

Minimum specification

Minimum specification

Freescale Semiconductor, Inc.

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