MC44BC374T1 Просмотр технического описания (PDF) - Motorola => Freescale
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MC44BC374T1 Datasheet PDF : 27 Pages
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6 Electrical Characteristics
• A = 100% Tested
• B = 100% Correlation tested
• C = Characterized on samples
• D = Design parameter
Electrical Characteristics
6.1 Specification Conditions
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25oC, Video Input 1Vp-p, 10-step grayscale.
RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION.
Parameter
Operating supply voltage range
Total supply current
Total standby mode supply current
Test pattern sync pulse width
Sound comparator charge pump current
During locking
When locked
RF comparator charge pump current
Crystal oscillator stability—negative resistance
STBY pin DC current
Force 5V to STBY pin
Force 0V to STBY pin
Min Typ Max Unit
4.5 5.0 5.5 V
44 52 60 mA
3
6
9 mA
3 4.7 6.5 µS
Notes
All sections active
Bus Section active
Type
B
A
A
B
7 10 12 µA
A
0.7 1 1.5 µA
A
60 100 150 µA
A
1 — — KΩ
D
— — 1 µA
A
— — -10 µA
A
7 I2C Bit Mapping
WRITE MODE
CA—CHIP ADDRESS
C1—High Order Bits
C0—Low Order Bits
FM—High Order Bits
FL—Low Order Bits
Bit 7
1
1
PWC
0
N5
Bit 6
1
0
OSC
TPEN
N4
Bit 5
0
SO
ATT
N11
N3
Bit 4
0
0
SFD1
N10
N2
Bit 3
1
PS
SFD0
N9
N1
Bit 2
0
X3
0
N8
N0
Bit 1
1
X2
X5
N7
X1
Bit 0
0
0
X4
N6
X0
ACK
ACK
ACK
ACK
ACK
ACK
Bit Name
PWC
OSC
ATT
SFD0, 1
SO
PS
TPEN
X5…X0
N0…N11
Description
Peak White Clip enable/disable
UHF oscillator ON/OFF
Modulator output attenuated—sound and video modulators ON/OFF
Sound subcarrier frequency control bits
Sound Oscillator ON/OFF
Picture-to-sound carrier ratio
Test pattern enable—picture and sound
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”)
UHF frequency programming bits, in steps of 250kHz
MOTOROLA
MC44BC374T1 Technical Data
5
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