Ordering number : ENA1957
CMOS IC
LC749870W
Overview
Silicon gate
NTSC/PAL/SECAM Digital
Video Decoder
The LC749870W is a digital video decoder that converts NTSC, PAL and SECAM video signals into digital
component video signals. Digital video data can be output easily by inputting NTSC, PAL and SECAM video signals.
The output data format is compatible with ITU-R BT.656.
Features
•
Supports NTSC (M, 4.43), PAL (B, D, G, H, I, M, N, 60), and SECAM video signal inputs.
•
On-chip video switch that supports 4 video inputs
•
10-bit ADC (sampling at 27MHz)
•
Automatic gain control (AGC) function
•
Digital clamp circuit
•
Digital automatic color control (ACC) circuit
•
Sync separation circuit
•
Signal-to-noise (S/N) detection capabilities
•
Non-standard signal detection function
•
No signal detection function
•
Adaptive two-dimensional Y/C separation circuit
•
NTSC/PAL/SECAM demodulator circuit
•
Clock rate conversion circuit
•
Picture quality improvement (sharpness, contrast, brightness, CTI, UV gain, HUE)
•
8-bit ITU-R BT.656 output format
ITU-R BT.656 (8bit YCbCr 4:2:2 with SAV/EAV)
8bit YCbCr 4:2:2 with Syncs
•
I
2
C control (100k/400kbps, 2 types of slave address selectable)
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
'
s products or
equipment.
62911HKPC 20110419-S00002 No.A1957-1/45
LC749870W
IC Specifications
•
Power supply voltage
I/O: Analog 3.3V, Digital 1.8V or 3.3V
Core: Analog 1.8V, Digital 1.1V
•
Maximum operating frequency: 30MHz
•
Package: SQFP64
Applications
•
Small-size monitors
Specifications
Absolute Maximum Ratings
at Ta = 25°C, DVSS = 0V, AVSS = 0V
Parameter
Maximum supply voltage (I/O)
Symbol
DVDD33
XVDD33
AVDD33
Maximum supply voltage (Core)
Digital input voltage
Digital output voltage
Operating temperature
Storage temperature
DVDD11
XVDD11
VI
VO
Topr
Tstg
-0.3 to +3.95
V
Conditions
Ratings
unit
-0.3 to +1.8
-0.3 to DVDD33+0.3
-0.3 to DVDD33+0.3
-40 to +85
-55 to +125
V
V
V
°C
°C
Allowable Operation Ranges
at Ta = 25°C, DVSS = 0V, AVSS = 0V
Parameter
Supply voltage (I/O)
Symbol
AVDD33
XVDD33
DVDD33
Supply voltage (Core)
Input voltage range
DVDD11
XVDD11
VIN
Conditions
min
3.0
1.7
1.0
0
typ
3.3
1.8 or 3.3
1.1
max
3.6
3.6
1.2
DVDD33
unit
V
V
V
V
DC Characteristics
at Ta = -30 to +70°C, DVDD33 = 1.7 to 3.63V, AVDD33 = 3.0 to 3.63V,
DVDD11 = 1.0 to 1.2V
Parameter
Input high-level voltage
Symbol
VIH
Conditions
CMOS level inputs
CMOS level Schmitt inputs
Input low-level voltage
VIL
CMOS level inputs
CMOS level Schmitt inputs
Input high-level current
IIH
VI = VDD
VI = VDD, with pull-down resistance
Input low-level current
Output high-level voltage
Output low-level voltage
Output leakage current
Pull-down register
IIL
VOH
VOL
IOZ
RDN
VI = VSS
CMOS (Pin E/G: IOH = -4mA, F: IOH = -6mA)
CMOS
When in high-impedance output mode
DVDD11 = 1.1V, DVDD33 = 3.3V
DVDD11 = 1.1V, DVDD33 = 1.8V
Operating current drain
IDDOP
Output open, tck=27MHz, natural image.
Ta = 25°C, DVDD33 = 3.3V,
AVDD33 = 3.3V, DVDD11 = 1.1V
Output open, tck=27MHz, natural image.
Ta = 25°C, DVDD33 = 1.8V,
Static current drain *1
IDDST
AVDD33 = 3.3V, DVDD11 = 1.1V
Output open, VI = VSS, Ta = 25°C
38
10
mA
μA
42
mA
-10
159
95
-10
VDD-0.4
0.4
10
min
0.7DVDD33
0.7DVDD33
0
0
0.3DVDD33
0.3DVDD33
10
100
typ
max
unit
V
V
V
V
μA
μA
μA
V
V
μA
kΩ
kΩ
*1: There is an input pin which builds in pull down resistance. Note that there is no guarantee about static consumption
current depending on circuit configuration.
No.A1957-2/45
LC749870W
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Symbol
I/O
CKO
DVSS
GPIO0
DATA6
DATA4
DATA7
DVSS
DATA5
DATA3
DATA2
DATA1
I CSEL
DATA0
DVSS
DVDD11
DVDD33
INTREQ
DVSS
MD0
DVSS
MD2
SCL
MD1
SDA
RESET
PDWN
DVDD11
TEST
DVSS
DVSS
REFPKV
REFNKV
VRT
VRB
AVSS33
AIN3
AVDD33
AIN2
AVSS33
AIN1
AVDD33
AIN0
AVSS33
SVO
AFEVRTC
XVSS
XVDD33
XIN
XOUT
XVDD11
2
I/O Type
Type
F
CMOS
GND
G
G
G
G
CMOS
CMOS
CMOS
CMOS
GND
G
G
G
G
C
G
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
GND
Connected to
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Digital
Analog
Analog
Analog
Analog
GND
A
Analog Voltage
A
GND
A
Analog Voltage
A
GND
A
A
GND
I/O Voltage
H
H
CMOS
CMOS
Core Voltage
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Digital
Digital
Digital
Digital
Digital
X’tal input
X’tal output
AFE SVO output
Interrupt (“H” active)
Video signal output
Video signal output
Video signal output
Video signal output
For test
Video signal output
Video signal output
Notes
Data synchronous clock output
O
P
I/O
I/O
I/O
I/O
P
I/O
I/O
I/O
I/O
I
I/O
P
P
P
O
P
I
P
I
I
I
I/O
I
I
P
I
P
P
I
I
I
I
P
I
P
I
P
I
P
I
P
O
I
P
P
I
O
P
Video signal output (MSB)
I
2
C slave select L = 0x88, H = 0x8A
Video signal output (LSB)
Core voltage
I/O voltage
E
CMOS
GND
D
CMOS
GND
D
D
D
G
B
B
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
Core voltage
C
CMOS
GND
GND
A
A
A
A
For test (Connect to GND)
For test (Connect to GND)
I
2
C clock
For test (Connect to GND)
I
2
C data input/output
System reset (“L” active)
Power down control
For test (Connect to GND)
ADC top reference buffer-amp input
ADC bottom reference buffer-amp input
ADC top reference voltage input
ADC bottom reference voltage input
Video signal input (CVBS)
Video signal input (CVBS)
Video signal input (CVBS)
Video signal input (CVBS)
ADC D-range control voltage external input
Continued on next page.
No.A1957-4/45
Analog electronics
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