MC44BS373CAFCR2 Freescale Semiconductor, MC44BS373CAFCR2 Datasheet - Page 24

• Manufacturer Part Number: MC44BS373CAFCR2
• Description: IC MODULATOR AUD/VID U/V 20-QFN
• Manufacturer: Freescale Semiconductor

Specifications of MC44BS373CAFCR2

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MC44BS373CA Modes of Operation
MC44BS373CA Modes of Operation
15.9 Video Section—Peak White Clip
The MC44BS373CA requires the following for proper video functionality:
This signal is AC-coupled to the video input where the sync tip level is clamped.
The video signal is then passed to a peak white clip (PWC) circuit. The PWC circuit function soft-clips the
top of the video waveform, if the sync tip amplitude to peak white clip goes too high. This avoids carrier
over-modulation by the video. Clipping can be disabled by software.
15.10 Test Pattern Generator
The I
easily tune to the modulator output. The pattern consists of two white vertical bars on a black background
and a 976-Hz audio test signal.
•
•
2
C generates a simple test pattern, which can be switched under bus control to permit a TV receiver to
A composite video input with negative going sync pulses
A nominal level of 1 Vp-p
Figure 6. Typical Attenuator Application with Pin Diode
0
TE1
Antenna
TE2
Input
10
Figure 7. Test Pattern Generator
MC44BS373CA Data Sheet
20
LOP pin
24 28
Vcc
30
TIME IN µS.
40
44
7/10
50
TV Out
3/10
60
64