
No. 5557-4/30
LC74794, 74794M
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VDD
VDD1 and VDD2VSS – 0.3 to VSS + 7.0
V
Input voltage
VIN
All input pins
VSS – 0.3 to VDD + 0.3
V
Output voltage
VOUT
DAV, DOUT, SEPOUT, and SYNCJDG
VSS – 0.3 to VDD + 0.3
V
Allowable power dissipation
Pd max
350
mW
Operating temperature
Topr
–30 to +70
°C
Storage temperature
Tstg
–40 to +125
°C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Supply voltage
VDD1VDD1 and VDD2
4.5
5.0
5.5
V
VDD2VDD2
5.5
5.0
1.27 VDD1V
VIH1
RST, CS1, CS2, SIN1, SCLK1, SCLK2,
0.8 VDD1VDD1 + 0.3
V
Input high-level voltage
and MUTE
VIH2
CTRL1
0.7 VDD1VDD1 + 0.3
V
VIL1
RST, CS1, CS2, SIN1, SCLK1, SCLK2,
VSS – 0.3
0.2 VDD1V
Input low-level voltage
and MUTE
VIL2
CTRL1
VSS – 0.3
0.3 VDD1V
Pull-up resistance
RPU
RST, CS1, CS2, SIN1, SCLK1, SCLK2,
25
50
90
k
and MUTE
Composite video signal input voltage
VIN1CVIN and CVCR; VDD1 = 5 V
2.0
Vp-p
VIN2
SYNIN; VDD1 = 5 V
1.5
2.0
2.5
Vp-p
Input voltage
VIN3
XtalIN (in external clock input mode)
0.10
5.0
Vp-p
fin = 2 fsc or 4 fsc ; VDD1 = 5 V
Oscillator frequency
FOSC1
XtalIN and XtalOUT oscillator pins (2 fsc: PAL)
8.867
MHz
FOSC2
XtalIN and XtalOUT oscillator pins (4 fsc: PAL)
17.734
MHz
Allowable Operating Ranges at Ta = –30 to +70°C
Note: When the XtalIN pin is used in clock input mode, extreme care must be taken to prevent noise from entering the input signal.
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Input off leakage current
Ileak1CVIN and CVCR
1A
Output off leakage current
Ileak2CVOUT
1A
Output high-level voltage
VOH1
DAV, DOUT, SEPOUT, CPOUT, SYNCJDG ;
3.5
V
VDD1 = 4.5 V, IOH = –1.0 mA
Output low-level voltage
VOL1
DAV, DOUT, SEPOUT, CPOUT, SYNCJDG ;
1.0
V
VDD1 = 4.5 V, IOL = 1.0 mA
CHABLK ; VDD1 = 5.0 V
H
3.3
5.0
V
Three-value output voltage
VO
M
1.8
2.3
V
L0
0.8
V
RST, CS1, CS2, SIN, SCLK1, SCLK2,
IIH
CTRL1, MUTE, SEPIN, and VCOIN
1A
Input current
VIN = VDD1
IIL
CTRL1, SEPIN, and VCOIN ; VIN = VSS1–1
A
IDD1
VDD1; with all outputs open
40
mA
Operating current drain
Xtal : 17.734 MHz, VCO : 27 MHz
IDD2VDD2; VDD2 = 5 V
20
mA
CVOUT;VDD1 = 5.0 V
0.80
V
SYNC level
VSN
VDD2 = 5.0 V
1.00
V
1.30
V
CVOUT;VDD1 = 5.0 V
1.37
V
Pedestal level
VPD
VDD2 = 5.0 V
1.57
V
1.87
V
CVOUT;VDD1 = 5.0 V
1.07
V
Color burst low level
VCBL
VDD2 = 5.0 V
1.27
V
1.57
V
Electrical Characteristics at Ta = –30 to +70°C, VDD1 = 5 V unless otherwise specified.
Continued on next page.