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MC44BC374T1 Datasheet(PDF) 5 Page - Freescale Semiconductor, Inc

Part No. MC44BC374T1
Description  PLL Tuned PAL/NTSC UHF and VHF Audio/Video High Integration Modulator IC
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MC44BC374T1 Datasheet(HTML) 5 Page - Freescale Semiconductor, Inc

 
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Electrical Characteristics
MC44BC374T1 Technical Data
6 Electrical Characteristics
A = 100% Tested
B = 100% Correlation tested
C = Characterized on samples
D = Design parameter
6.1 Specification Conditions
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25
o C, Video Input 1V
p-p, 10-step grayscale.
RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION.
7I2C Bit Mapping
Parameter
Min
Typ
Max
Unit
Notes
Type
Operating supply voltage range
4.5
5.0
5.5
V
B
Total supply current
44
52
60
mA
All sections active
A
Total standby mode supply current
3
6
9
mA
Bus Section active
A
Test pattern sync pulse width
3
4.7
6.5
µSB
Sound comparator charge pump current
During locking
When locked
7
0.7
10
1
12
1.5
µA
µA
A
A
RF comparator charge pump current
60
100
150
µAA
Crystal oscillator stability—negative resistance
1
K
D
STBY pin
DC current
Force 5V to STBY pin
Force 0V to STBY pin
1
-10
µA
µA
A
A
WRITE MODE
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ACK
CA—CHIP ADDRESS
11001010
ACK
C1—High Order Bits
1
0
SO
0
PS
X3
X2
0
ACK
C0—Low Order Bits
PWC
OSC
ATT
SFD1
SFD0
0
X5
X4
ACK
FM—High Order Bits
0
TPEN
N11
N10
N9
N8
N7
N6
ACK
FL—Low Order Bits
N5
N4
N3
N2
N1
N0
X1
X0
ACK
Bit Name
Description
PWC
Peak White Clip enable/disable
OSC
UHF oscillator ON/OFF
ATT
Modulator output attenuated—sound and video modulators ON/OFF
SFD0, 1
Sound subcarrier frequency control bits
SO
Sound Oscillator ON/OFF
PS
Picture-to-sound carrier ratio
TPEN
Test pattern enable—picture and sound
X5…X0
Test mode bits—All bits are 0 for normal operation (see Test Mode tables, page 6 & page 7)
except “OSC” bit (normal mode is “1”)
N0…N11
UHF frequency programming bits, in steps of 250kHz
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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