MC44BS374T1/374T1A Advance Information

MC44BS374T1 High Frequency Characteristics

Figure 4. Typical High Frequency Performance

Sound subcarrier harmonics

(Fp

+n∗Fs)

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

-

-

32

52

46

64

dB

µV

C

Out band (picture carrier)

spurious

1/2

∗Fo - 1/4∗Fo - 3/2∗Fo - 3/4∗Fo

From 40MHz to 1GHz. See Note 2

-

-

4

dB

µV

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:

2: See “Characterization Measurement Conditions” on page 15.

Table 4. High Frequency Characteristics

Parameter

Test Conditions

Min

Typ

Max

Unit

Type

TV Output Level

77

79

81

83

85

87

471

521

571

621

671

721

771

821

871

Frequency (Mhz)

TV Output Attenuation

55

60

65

70

75

80

85

471

521

571

621

671

721

771

821

871

Frequency (Mhz)

3Fo Harm onics

35

40

45

50

55

60

65

70

75

471

521

571

621

671

721

771

821

871

Frequency (Mhz)

2Fo Harm onics

35

40

45

50

55

60

65

70

75

471

521

571

621

671

721

771

821

871

Frequency (Mhz)

Maximum specification

Minimum specification

Maximum specification

Maximum specification

Minimum specification

Typical

Typical

Typical

Typical

Freescale Semiconductor, Inc.

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