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MC44BC373CDR2 数据表(PDF) 7 Page - Freescale Semiconductor, Inc

部件名 MC44BC373CDR2
功能描述  PLL Tuned UHF and VHF Audio/Video High Integration Modulator
PDF  30 Pages
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制造商  FREESCALE [Freescale Semiconductor, Inc]
网页  http://www.freescale.com
标志 FREESCALE - Freescale Semiconductor, Inc

MC44BC373CDR2 数据表(HTML) 7 Page - Freescale Semiconductor, Inc

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I2C Programming
MC44BC373C/374C Technical Data
8I2C Programming
WRITE MODE: Test Mode 1 and VHF Range
X2
X1
X0
State
Description
0
0
0
1.a
Normal operation
0
0
1
1.b
RF frequency divided for low frequency testing or VHF range: RF/2
010
1.c
RF/4
011
1.d
RF/8
100
1.e
RF/16
1
0
1
1.f
DC drive applied to modulators: Non-inverted video at TVOUT
1
1
0
1.g
DC drive applied to modulators: Inverted video at TVOUT
111
1.h
Transient output inhibit disabled (ie speed up mode)
During this speed-up test mode, ATT=0 forces sound current source to 1
µA, and
ATT=1forces itto10
µA.
Sound
Video
SFD1
SFD0
Sound Subcarrier Freq (MHz)
00
4.5
01
5.5
10
6.0
11
6.5
PS
Picture-to-Sound Ratio (dB)
012
116
SO
Sound Oscillator
0
Sound oscillator ON (Normal mode)
1
Sound oscillation disabled (oscillator and PLL
section bias turned OFF)
SYSL
System L/BG Selection
(MC44BC373C only)
0
System B/G enabled, System L disabled (FM
sound and negative video modulation)
1
System L enabled, System B/G disabled (AM
sound and positive video modulation)
PWC
Peak White Clip
0
Peak White Clip ON (System B/G)
1
Peak White Clip OFF (System L)
TPEN
Test Pattern Signal
0
Test pattern signal OFF (normal operation)
UHF
Standby Mode
MC44353 /4/5 Compatibility
Logic Output Port
OSC
UHF Oscillator
0
Normal operation
1
UHF oscillator disabled (oscillator and PLL
sections bias turned OFF)
ATT
Modulator Output Attenuation
0
Normal operation
1
Modulator output attenuation (sound and
video modulators sections bias turned OFF.
OSC
SO
ATT
Combination of 3-bits
1
1
1
Modulator standby mode
TB1
Description
0
Normal mode (Full programmability)
1
Limited programmability and compatibility with
MC44353
LOP
Description
0
Pin 3 is low voltage
1
Pin 3 is high impedance
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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