PANASONIC MN6732741

Video Camera LSIs
MN6732741
Signal-processing IC for surveillance cameras and cameras for PC input
■ Overview
The MN6732741 is camera signal-processing IC appropriate for a wide variety of applications, including
surveillance cameras and cameras used for input to personal computers. In addition to the basic functions of luminance
and chrominance signal processing, it also integrates the ALC, AWB, and AGC functions that were previously
implemented using microcontroller signal processing. Furthermore, it also integrates on a single chip, including SSG,
CG, and I2C-bus functions.
■ Features
• Input:
• Outputs:
Analog signal (A/D converter input)
Digital output
8-bit YUV signal
Analog outputs
Luminance signal
Chrominance signal
Composite video signal output
RGB output
• Operating supply voltage: 3.3 V ± 0.3 V
• Operating clock frequency: 9.5 MHz to 28.7 MHz
• Main functions
• 10-bit A/D converter
• Single-channel 10-bit D/A converter
• Two-channel 8-bit D/A converter
• Supports analog AGC (NN2038 or NN2039)
• CG and SSG circuits
• Supports 510 and 768 horizontal lines (NTSC and PAL)
• Supports VGA progressive scan readout CCDs (complementary color filters)
• Also supports black-and-white CCD signal processing
• CCD white defect/black defect correction circuit
• Digital AGC gain: up to 24 dB
• Left/right reversing function
• Variable gamma correction (γ = 0.3 to 1)
• ZV port standard mode, BT656 standard mode
• Modes: LL, SYNC, VD2, and HD/VD external synchronization support
• Built-in I2C-bus circuit
• ALC and AGC (Also supports external AGC)
• Two white balance modes (manual and ATW) with ATW lock function
• Automatic OB correction function
■ Applications
• Surveillance cameras, PC input cameras, multimedia cameras
Publication date: August 2001
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MN6732741
■ Block Diagram
YUVOE
YUV0
to YUV7
Y
VIN
10-bit
A/D
AGC
Luminance
processing
Y/C
MPX
10-bit
D/A
C
Chrominance
processing
Y
COMP output
G
ENC
8-bit
D/A
RGB
CNV
(2-ch)
R
C output, B
WB gain
Horizontal
drive pulse
output
Register R/W for each block
CG
Vertical system
drive Sync system
pulse output
FCK
2FCK
FCK
2FCK
DATA
Carrier signal
YLPF
Digital AGC
control
ALC
ATN
SSG
SUB control
2
I2C-bus
BLK
CSYNC
WE RE
control
SCL
SDA
PWM
PWM0
PWM
PWM1
PWM
PWM2
PWM
PWM3
YUVOE
■ Function Descriptions (by circuit block)
1. ADC
Converts the post-CDS CCD signal to a 10-bit digital signal.
2. PATGEN
Generates test pattern signals. This circuit generates horizontal and vertical patterns with a color bar (3 colors)
format. Since it simulates the output of the CCD 4-color complementary color filters, it conveniently allows problems in the analog block, from the CCD to the A/D converter, and IC internal problems, to be isolated. It can also be
used to temporarily halt CCD image output and generate a blue background signal.
3. AGC (AGC, pixel mixing, mirror reversal, and OB clamping functions)
Performs AGC control (up to +24 dB) digitally by linking with the ALC. Since the IC also provides an interface
output to an external analog AGC (NN2038 or NN2039), over 24 dB of gain can be provided.
When a VGA CCD is used, since progressive scan is used, the photodiode mixing operation used with earlier
interlaced CCDs is not required. The AGC circuit includes an internal pixel mixing circuit, and is designed for both
progressive and interlaced scan at the circuit level.
In the mirror mode provided by 510 H and 768 H CCDs, it is possible to generate a reversed video signal by
controlling RAM. OB correction is also performed in this block, and this function has both a digital mode, in which
processing is performed internally to the IC, and an analog mode that controls the external CDS and AGC IC clamp
voltage.
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MN6732741
■ Function Descriptions (by circuit block) (continued)
4. ALC
The ALC block controls the exposure electronically by inputting the luminance signal, taking an averaged but
center weighted exposure reading over the whole image, and comparing that to the target value. That result is used
to control the CCD's electronic shutter.
In ELC mode, since the step size of the electronic shutter accumulation time is discrete, the AGC system is used
in conjunction with the ALC function to create a smoothly operating control system. This block also performs a 3field averaging flicker correction operation as well.
5. Luminance system
After generating the luminance signal from the complementary color filter CCD output using a low-pass filter,
this block generates the horizontal and vertical aperture signals and performs coring/low-luminance suppression,
gamma correction, and blanking processing.
This block includes a defect correction circuit that corrects for defective pixels in the CCD. One of two outline
correction levels can be selected with the APGAIN pin.
The IC also includes a defect correction circuit that corrects for missing pixels in the CCD. The gamma correction
is continuously variable from γ = 0.3 to 1. The luminance signal low-pass filter can be bypassed to allow this device
to handle black-and-white CCDs.
6. Chrominance system
This block performs white balance processing, carrier balance, color temperature correction, and low-luminance/
high-luminance chrominance suppression processing.
7. AWB
This block generates the auto white balance control signal. This white balance function operates so that the state
of the immediately prior and proper illumination level will be held in case of low illumination levels.
8. ENC
This block converts between NTSC and PAL. A digital technique in which 4fSC is created from FSC is adopted,
and the clock system is unified into a single system. To create the composite video signal, clock rate conversion is
also applied to the Y signal and the signals are mixed digitally. The sync signal can also be mixed digitally.
9. RGBCNV
The YUV signal generated from the luminance and chrominance signals is converted to RGB using a matrix.
However, since the band of the UV signal is dropped to around 800 kHz at a relatively early stage relative to the
chrominance signal, this is not a signal in which all three channels have the same wide band as the Y signal, such as
the signals used in 3-CCD video cameras.
10. YCMPX
This block takes the FCK rate luminance and UV signals and outputs them as an 8-bit time-division multiplexed
signal with a 2FCK rate.
In BT656 standard mode, SAV and EAV are embedded in the signal.
11. D/A converters
One D/A converter block converts the digital input to analog output. There are three channels, and one channel
with a 10-bit resolution is provided for each of the composite, Y, and G signals. The circuit is designed so that the
sync can be mixed digitally.
The remaining D/A converter is a two-channel 8-bit device used for the chrominance, R, and B signals.
12. PWM
Provides an independently controllable 4-channel PWM output circuit that can be used to control analog circuits
peripheral to the IC. These outputs can be used, for example, for VREF adjustment of D/A converter.
13. CG
This circuit generates the high-speed pulse signals (H1, H2, DS1, and DS2) used by the CCD.
This block's logic system power supply is isolated from the other IC internal logic circuits to minimize noise.
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MN6732741
■ Function Descriptions (by circuit block) (continued)
14. SSG
This block generates both low-speed pulse signals used by the CCD and various kinds of pulse signals used for
signal processing. (However, note that VBSGEN locking is not supported.)
15. I2C-bus
When power is first applied, the contents of an external EEPROM are read out and used to set the IC internal
registers.
Since this circuit does not support multi-master operation, no external devices will have become bus master
when power is first applied. This I2C-bus also can be used by external devices to read or write the IC internal registers.
(Note that certain limitations apply.)
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
FCK2O
FCKO
VSS3
VDD3
YUV7
YUV6
YUV5
YUV4
YUV3
YUV2
YUV1
YUV0
PWM3
PWM2
PWM1
PWM0
VSS2
VDD2
A2
A1
A0
SCL
SDA
RESET
CCDSEL2
CCDSEL1
CCDSEL0
TEST0
TEST1
TEST2
TEST3
TEST4
■ Pin Arrangement
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
N.C.
V4
V3
VSS5
VDD5
V2
N.C.
V1
N.C.
SUB
N.C.
CH2
N.C.
CH1
OSCCNT
CXIN
CXOUT
OSCVDD
OSCVSS
TESTDC1
WHD
FVD
FWHD
CPOB
PBLK
HCLR
LLDET
FLC
VDD1
VSS1
EXTIN0
EXTIN1
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
COIN
OBCTL
EXTAGC
IRIS
ALCELC
ATWLOCK
APGAIN
BLCSW
DIN8
DIN7
DIN6
DIN5
DIN4
VDD4
VSS4
DIN3
DIN2
DIN1
DIN0
DS2
DS1
TESTDC2
TESTSW5
R
N.C.
TGVDD
TGVSS
N.C.
H2
N.C.
H1
N.C.
(TOP VIEW)
4
SDB00060AEM
VIN
VREFL
VREFML
ADVDD
ADVSS
VREFM
VREFHM
VREFH
VREF23
IREF23
COMP23
BSIG
DAVSS1
DAVDD1
RSIG
VREF1
IREF1
COMP1
GSIG
DAVSS2
DAVDD2
VCXO
LPFI
FVR
MINTEST
SCANT
HREFCBLK
VCSYNCVD
YUVOE
NTPL
PCO
EXTMOD
MN6732741
■ Pin Descriptions
Pin No.
Pin
I/O
Description
1
N.C.


2
V4
O
φV4 charge pulse
3
V3
O
φV3 charge pulse
4
VSS5
VSS
Digital system ground
5
VDD5
VDD
Digital system power supply (3.3 V)
6
V2
O
7
N.C.

8
V1
O
9
N.C.

10
SUB
O
11
N.C.

12
CH2
O
13
N.C.

14
CH1
O
V1 charge pulse
15
OSCCNT
O
Oscillator control test
16
CXIN
I
Synchronization oscillator (crystal oscillator)
17
CXOUT
O
Synchronization oscillator (crystal oscillator)
18
OSCVDD
VDD
Oscillator cell power supply
19
OSCVSS
VSS
Oscillator cell ground
20
TESTDC1
I
Test input (Normally connect to low.)
21
WHD
O
WHD signal that is in proper phase relative to the sync signal
22
FVD
O
VD signal that is in proper phase relative to the sync signal
23
FWHD
O
WHD for TG drive
24
CPOB
O
A/D converter input signal clamp pulse, or D/A converter output clamp pulse
25
PBLK
O
Pre-blanking pulse
26
HCLR
O
Horizontal reference signal
27
LLDET
I
Power supply synchronization switching signal
φV2 charge pulse

φV1 charge pulse

Vertical removal pulse

V3 charge pulse

Low: internal synchronization, High: LL synchronization
28
FLC
I
Flicker correction (pulled up). High: Flicker correction on
29
VDD1
VDD
Digital system power supply (3.3 V)
30
VSS1
VSS
Digital system ground
31
EXTIN0
I
External sync signal input 1
32
EXTIN1
I
External sync signal input 2
33
EXTMOD
I
Monitor/automotive mode switch (pulled up)
High: Automotive mode (HDVD/SYNC synchronization mode)
34
PCO
O
Phase comparator output
35
NTPL
I
NTSC/PAL switching. Low: NTSC, High: PAL (pulled down)
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MN6732741
■ Pin Descriptions (continued)
Pin No.
Pin
I/O
Description
36
YUVOE
I
Digital output system output enable
37
VCSYNCVD
O
VCSYNC output/VD output (VGA mode CSYNC/IT mode register switching)
38
HREFCBLK
O
HREF output/CBLK output (VGA mode HREF/IT mode register switching)
39
SCANT
I
Test input (Normally connect to low.)
40
MINTEST
I
Test input (Normally connect to low.)
41
FVR
I
Frequency control DC input
42
LPFI
I
Low-pass filter analog switch input
43
VCXO
O
Analog switch output. LC oscillator
44
DAVDD2
VDD
D/A converter power supply
45
DAVSS2
VSS
D/A converter ground
46
GSIG
O
Video signal output (composite/luminance signal/G signal)
(Connect RL between this pin and DAVSS2.)
6
47
COMP1
I
Phase compensation (Connect a 1 µF capacitor between this pin and DAVSS2.)
48
IREF1
I
Bias current setting resistor connection (Connect RIREF between this pin and DAVSS2.)
49
VREF1
I
Reference voltage input
50
RSIG
O
Video signal output (R signal)
51
DAVDD1
VDD
D/A converter power supply
52
DAVSS1
VSS
D/A converter ground
53
BSIG
O
Video signal output (Chrominance signal/B signal)
54
COMP23
I
Phase compensation (Connect a 1 µF capacitor between this pin and DAVSS1.)
55
IREF23
I
Bias current setting resistor connection (Connect RIREF between this pin and DAVSS1.)
56
VREF23
I
Reference voltage input
57
VREFH
I
High-level reference voltage input
58
VREFHM
I
Mid-level reference voltage (Connect this pin to ADVSS through a capacitor.)
59
VREFM
I
Mid-level reference voltage (Connect this pin to ADVSS through a capacitor.)
60
ADVSS
VSS
A/D converter ground
61
ADVDD
VDD
A/D converter power supply
62
VREFML
I
Mid-level reference voltage (Connect this pin to ADVSS through a capacitor.)
63
VREFL
I
Low-level reference voltage input
64
VIN
I
Analog signal input
65
TEST4
I
Test input (Normally connect to low.)
66
TEST3
I
Test input (Normally connect to low.)
67
TEST2
I
Test input (Normally connect to low.)
68
TEST1
I
Test input (Normally connect to low.)
69
TEST0
I
Test input (Normally connect to low.)
70
CCDSEL0
I
CCD switching
71
CCDSEL1
I
CCD switching
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MN6732741
■ Pin Descriptions (continued)
Pin No.
Pin
I/O
Description
72
CCDSEL2
I
CCD switching
73
RESET
I
Logic system initial reset
74
SDA
I/O
I2C-bus (data)
75
SCL
I/O
I2C-bus (clock)
76
A0
I
EEPROM address setting (pulled down)
77
A1
I
EEPROM address setting (pulled down)
78
A2
I
EEPROM address setting (pulled down)
79
VDD2
VDD
Digital system power supply (3.3 V)
80
VSS2
VSS
Digital system ground
81
PWM0
O
PWM signal output
82
PWM1
O
PWM signal output
83
PWM2
O
PWM signal output
84
PWM3
O
PWM signal output
85
YUV0
O
Digital Y/UV output (LSB)
86
YUV1
O
Digital Y/UV output
87
YUV2
O
Digital Y/UV output
88
YUV3
O
Digital Y/UV output
89
YUV4
O
Digital Y/UV output
90
YUV5
O
Digital Y/UV output
91
YUV6
O
Digital Y/UV output
92
YUV7
O
Digital Y/UV output (MSB)
93
VDD3
VDD
Digital system power supply (3.3 V)
94
VSS3
VSS
Digital system ground
95
FCKO
O
FCK output
96
FCK2O
O
2FCK output
97
COIN
I
Synchronization oscillator cell (LC oscillator)
98
OBCTL
O
OB automatic correction output
99
EXTAGC
O
External AGC control
100
IRIS
O
Mechanical iris fixation (PWM output)
101
ALCELC
I
Fixed/ELC switching. Low: ELC, High: Fixed
102
ATWLOCK
I
ATW/Stop. Low: Normal, High: ATWLOCK
103
APGAIN
I
Aperture gain switching. Low: Register value High: One half of the register value
104
BLCSW
I
Backlighting correction. Low: Normal, High: ATWLOCK
105
DIN8
I
Digital signal input (MSB)
106
DIN7
I
Digital signal input
107
DIN6
I
Digital signal input
108
DIN5
I
Digital signal input
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MN6732741
■ Pin Descriptions (continued)
Pin No.
Pin
I/O
Description
109
DIN4
I
110
VDD4
VDD
Digital system power supply (3.3 V)
111
VSS4
VSS
Digital system ground
112
DIN3
I
Digital signal input
113
DIN2
I
Digital signal input
114
DIN1
I
Digital signal input
115
DIN0
I
Digital signal input (LSB)
116
DS2
O
CDS pulse 1
117
DS1
O
CDS pulse 2
118
TESTDC2
I
Test input (Normally connect to low.)
119
TESTSW5
I
Test input (Normally connect to low.)
120
R
O
φR pulse
121
N.C.

122
TGVDD
VDD
TG power supply
123
TGVSS
VSS
TG ground
124
N.C.

125
H2
O
126
N.C.

127
H1
O
128
N.C.

Digital signal input


φH1 transfer pulse

φH2 transfer pulse

■ Electrical Characteristics
1. Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage (digital)
VDD
− 0.3 to +4.6
V
Supply voltage (analog)
AVDD
− 0.3 to +4.6
V
Input voltage
VI
− 0.3 to VDD+0.3
V
Output voltage
VO
− 0.3 to VDD+0.3
V
Output current
IO
±48
mA
Power dissipation
PD
750
mW
Operating temperature
Topr
−20 to +70
°C
Storage temperature
Tstg
−55 to +150
°C
Note) 1. The absolute maximum ratings are limit values for stresses applied to the chip so that the chip will not be destroyed.
Operation is not guaranteed within these ranges.
2. Always apply the identical potential to the following pins: VDD1, VDD2, VDD3, VDD4, VDD5, VDDTG, ADVDD, DAVDD1,
and DAVDD2.
Always apply the identical potential to the following pins: VSS1, VSS2, VSS3, VSS4, VSS5, VSSTG, ADVSS, DAVSS1,
and DAVSS2.
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MN6732741
■ Electrical Characteristics (continued)
2. Recommended Operating Conditions at VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V
Parameter
Symbol
Supply voltage (digital)
Min
Typ
Max
Unit
3.0
3.3
3.6
V
TGVDD TG power supply
3.0
3.3
3.6
OSCVDD Oscillator power supply
3.0
3.3
3.6
ADVDD A/D converter power supply

3.3

DAVDD D/A converter power supply

3.3

9.5

28.7
VDD
Supply voltage (analog)
Operating frequency
fosc
Condition
Digital system power supply
duty 50%
V
MHz
3. DC Characteristics at VDD = TGVDD = OSCVDD = 3.0 V to 3.6 V, ADVDD = DAVDD = 3.0 V to 3.6 V,
VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V, Ta = -20°C to +70°C
Parameter
Operating supply current
Symbol
Condition
Min
Typ
Max
Unit
IDD
VDD = TGVDD = OSCVDD = 3.6 V,

80
120
mA
DAIDD ADVDD = DAVDD = 3.6 V,

23
33
ADIDD fCLK = 28.7 MHz, Ta = 25°C

20
40
1) Input pins 1-1: Standard input pins
LLDET, EXTIN0, EXTIN1, YUVOE, CCDSEL0 to CCDSEL2, RESET, COIN, ALCELC, ATWLOCK,
APGAIN, BLCSW, DIN8 to DIN0, TESTDC2, TESTSW5
Input voltage
High level
VIH
VDD × 0.8

VDD
Low level
VIL
0

VDD × 0.2
−5

5
µA
V
Input leakage current
ILIPD
VI = VDD or VSS
2) Input pins 1-2: Pulled-up input pins
Input voltage
V
FLC, EXTMOD
High level
VIH
VDD × 0.8

VDD
Low level
VIL
0

VDD × 0.2
Input leakage current
ILIPD
VI = VDD
−10

10
µA
Pull-up resistance
RPU1
VDD = 3.3 V, VI = VSS
10
30
90
kΩ
3) Input pins 1-3: Pulled-down input pins
Input voltage
TESTDC1, NTPL, SCANT, A0 to A2, MINTEST, TEST4 to TEST0
High level
VIH
VDD × 0.8

VDD
Low level
VIL
0

VDD × 0.2
V
Input leakage current
ILIPD
VI = VSS
−10

10
µA
Pull-down resistance
RPD1
VI = VDD
10
30
90
kΩ
4) Output pins 1-1 V4 to V1, SUB, CH2, CH1, OSCCNT, WHD, CPOB, PBLK, HCLR, PCO, PWM0 to PWM3,
OBCTL, EXTAGC, IRIS
Output voltage
High level
VOH
IO = −1 mA
VDD − 0.6


Low level
VOL
IO = 1 mA


0.4
5) Output pins 1-2
Output voltage
V
YUV0 to YUV7
High level
VOH
IO = −2 mA
VDD − 0.6


Low level
VOL
IO = 2 mA


0.4
SDB00060AEM
V
9
MN6732741
■ Electrical Characteristics (continued)
3. DC Characteristics at VDD = TGVDD = OSCVDD = 3.0 V to 3.6 V, ADVDD = DAVDD = 3.0 V to 3.6 V,
VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V, Ta = -20°C to +70°C (continued)
Parameter
6) Output pins 1-3
Output voltage
9) I/O pins 1
Min
Typ
Max
Unit
V
High level
VOH
IO = −4 mA
VDD − 0.6


Low level
VOL
IO = 4 mA


0.4
FVD, FWHD, FCKO, FCK2O
High level
VOH
IO = −8 mA
VDD − 0.6


Low level
VOL
IO = 8 mA


0.4
8) Output pins 1-5
Output voltage
Condition
VCSYNCVD, HREFCBLK
7) Output pins 1-4
Output voltage
Symbol
V
DS2, DS1, R, H2, H1
High level
VOH
IO = −16 mA
VDD − 0.6


Low level
VOL
IO = 16 mA


0.4
V
SDA, SCL
TTL
Schmitt trigger
input voltage
Input
threshold
voltage
VT+
VDD = 3.0 V to 3.6 V
Vref5 = 4.75 V to 5.25 V

1.6
2.2
VT−
(Vref5 is an external reference
voltage.)
0.6
1.2

Output voltage
Low level
VOL
IO = 4 mA


0.4
V
ILO
VO = VDD or VSS
−10

10
µA
15

30
MHz
Output leakage current
10) Oscillator pins 1
V
CXIN, CXOUT
Standard oscillator frequency
fOSC
VDD = 3.3 V, with an external crystal
Internal feedback resistance
RFB
VDD = 3.3 V
VI (XI) = VDD or VSS
0.73
2.2
6.6
kΩ
Output current
High level
IOH
VDD = 3.3 V
VI = VSS , VO = VSS
−57.5
−23
−9.2
mA
Low level
IOL
VDD = 3.3 V
VI = VDD , VO = VDD
9.6
24
60
Min
Typ
Max
Unit
4. AC Characteristics
Parameter
Input pins 2-1
Symbol
Condition
CXIN
Clock waveform Period
Clock duty
tcyc
See figure 1
34.8

105.3
ns
dclk
See figure 1
dclk = thi /tcyc

50

%
tcyc
thi
Clock CLK
Vclk /2
Figure 1. Clock waveform
10
SDB00060AEM
Vclk
MN6732741
■ Electrical Characteristics (continued)
5. A/D converter at VDD = TGVDD = OSCVDD = 3.3 V, ADVDD = DAVDD = 3.3 V,
VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V, Ta = 25°C
Pins: VIN, VREFH, VREFL, VREFM, VREFML, VREFHM
Parameter
Symbol
Condition
Min
Typ
Max
Unit
1) A/D converter recommended operating conditions
Analog input voltage
VAIN
VIN
VREFL

VREFH
V
Analog input pin capacitance
CAI
VIN

330

pF
High-level reference voltage
VREFH
VREFH

2.5

V
Low-level reference voltage
VREFL
VREFL

0.5

V
Reference resistance (VREFL to VREFH)
RREF

440

Ω


10
bit
2) A/D converter characteristics
Resolution
RES
Nonlinearity error
INL
fADCK = 14.3 MHz

±5.0
±7.5
LSB
Differential nonlinearity error
DNL
VREFH = 2.5 V
VREFL = 0.5 V

±2.0
±6.5
LSB
Analog input dynamic range
VAIN


VREFH −
VREFL
V[p-p]
Min
Typ
Max
Unit
6. D/A converter at VDD = TGVDD = OSCVDD = 3.3 V, ADVDD = DAVDD = 3.3 V,
VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V, Ta = 25°C
1) Pins: VREF23, IREF23, COMP23, BSIG, RSIG
Parameter
(1)
Symbol
Condition
D/A converter recommended operating conditions
Reference voltage
VREF
RL = 75 Ω
RIREF23 = 820 Ω

1.37

V
External phase compensation
capacitor
CCOMP
Connected between COMP23
and AVDD.

1.0

µF
Connect output resistors
between each of the BSIG
and RSIG pins and AVSS.

75

Ω
Connect this resistor between
IREF23 and AVSS.

820

Ω


8
bit
External output resistors
External bias current setting
resistor
(2)
RL
RIREF
D/A converter characteristics
Resolution
RES
Nonlinearity error
INL
RL = 75 Ω


±2.5
LSB
Differential nonlinearity error
DNL
VREF23 = 1.37 V
RIREF23 = 820 Ω


±2.5
LSB
Full-scale voltage
VOFS

1.0

V
Zero-scale voltage
VOZS

0

V
SDB00060AEM
11
MN6732741
■ Electrical Characteristics (continued)
6. D/A converter at VDD = TGVDD = OSCVDD = 3.3 V, ADVDD = DAVDD = 3.3 V,
VSS = TGVSS = OSCVSS = ADVSS = DAVSS = 0 V, Ta = 25°C (continued)
2) Pins: VREF1, IREF1, COMP1, GSIG
Parameter
Symbol
Condition
Min
Typ
Max
Unit
(1) D/A converter recommended operating conditions
Reference voltage
VREF
RL = 75 Ω
RIREF1 = 1.13 kΩ

1.5

V
External phase compensation
capacitor
CCOMP
Connect between COMP1
and AVDD.

1.0

µF
RL
Connect an output resistor
between GSIG and AVSS.

75

Ω
Connect this resistor between
IREF1 and AVSS.

1.13

kΩ


10
bit
External output resistor
External bias current setting
resistor
RIREF
(2) D/A converter characteristics
Resolution
RES
Nonlinearity error
INL
RL = 75 Ω


±2.5
LSB
Differential nonlinearity error
DNL
VREF1 = 1.5 V
RIREF1 = 1.13 kΩ


±2.5
LSB
Full-scale voltage
VOFS

1.0

V
Zero-scale voltage
VOZS

0

V
12
SDB00060AEM
MN6732741
■ Application System Examples
1. Example A (Minimum configuration)
• Internal synchronization
• Composite video output
EEPROM
Color
CCD
CDS
MN6732741
75 Ω
driver
Vertical driver
EEPROM
2. Example B
• Internal synchronization
• RGB output
Color
CCD
CDS
MN6732741
Vertical driver
75 Ω
driver
R
75 Ω
driver
G
75 Ω
driver
B
EEPROM
3. Example C (Surveillance camera)
• External synchronization
• YC output
LL pulse
Color
CCD
CDS
AGC
MN6732741
YC
mixer
75 Ω
driver
VD2
separation
Vertical driver
Analog
switch
4. Example D (PC camera)
• Internal synchronization
• Digital output
VCXO VCO
EEPROM
Color
CCD
CDS
YUV
MN6732741 8-bit
Vertical driver
5. Example E
• Internal synchronization
• Y output
EEPROM
Black-andwhite
CCD
CDS
MN6732741
75 Ω
driver
Vertical driver
SDB00060AEM
13
MN6732741
■ Package Dimensions (Units: mm)
• LQFP128-P-1818C
20.00±0.20
18.00±0.10
96
65
64
128
33
18.00±0.10
20.00±0.20
(1.25)
97
0.10 M
14
Seating plane
SDB00060AEM
0.10±0.10
1.70 max.
0.10
0.25
32
0.20±0.05
1.40±0.10
0.50
0.15±0.05
1
(1.25)
(1.00)
0° to 10°
0.50±0.20
(0.60)
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and semiconductors described in this material
(1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the
"Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan.
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notice for reasons of modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product Standards in advance to
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(5) When designing your equipment, comply with the guaranteed values, in particular those of maximum rating, the range of operating power supply voltage and heat radiation characteristics. Otherwise, we will not be liable for any defect which may arise later in your equipment.
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A. These materials are intended as a reference to assist customers with the selection of Panasonic
semiconductor products best suited to their applications.
Due to modification or other reasons, any information contained in this material, such as available
product types, technical data, and so on, is subject to change without notice.
Customers are advised to contact our semiconductor sales office and obtain the latest information
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2001 MAR