Notice:This is not a final specification.
Some parametric limits are subject to change.
DESCRIPTION
The M65675FP/M65676FP is a NTSC/PAL encoder LSI that
converts CCIR 601 or CCIR 656 (SMPTE125M) format digital video
signals into analog component and composite video signals in
accordance with either NTSC or B/G-PAL standards.
The 10-bit digital luma (Y) and analog chroma (U/V) signals are
available in Y/U/V output mode.
In addition it performs the closed caption capability (TV line 21/
NTSC), CGMS
line 23/PAL), Macrovision copy protection
*1
encoding (TV line 20/NTSC), WSS
*3
function (Rev. 7.01) and
on-screen display. The OSD function can be directly accessed by
the OSD microprocessor via built-in interface.
FEATURES
•
NTSC and B/G-PAL Outputs
•
Component Y/C (S-Video), Composite (CVBS) or Y
Outputs
•
Supporting CCIR601, CCIR656 (SMPTE125M) Format Data
•
Processing Y/Cb/Cr and Y/U/V Pixel Data
•
27MHz Clock Frequency (Two-times Oversampling)
•
Macrovision Copy Protection
•
Close Captioning Supporting (line 21/NTSC) (ODD Parity Operation)
*2: Wide Screen Signaling (ETS300 294)
*3: This applies to M65675FP only.
This device is protected by U.S. patent number 4631603,
4577216 and 4819098 and other intellectual property rights.
The use of Macrovision's copy protection technology in the
device must be authorized by Macrovision and is intend for
home and other limited pay-par-view use only, unless otherwise
authorized in writing by Macrovision. Reverse engineering or
disassembly is prohibited.
*4: Y output is 10bit digital signal.
APPLICATION
DVD Players, Digital Satellite & Cable System (Set Top Boxes/
IRDs), Video CD, Multimedia Terminals, Video Games, Digital VCR
& Camcoder etc.
PIN CONFIGURATION (TOP VIEW)
Yref
47
48
Ycomp
49
50
N.C.
51
DV
DD1
DVSS1
52
DVSS2
DV
DD2
53
54
55
56
57
58
59
60
61
62
63
64
2
1
SS2
DV
X out
X in
PXD7
PXD6
PXD5
PXD4
PXD3
PXD2
PXD1
PXD0
Cref
DAY
46
3
PXCLK
DVASEL
SS1
AV
AVDD1
454443
5
4
VD
HD
DAC
C in
Ccomp
N.C
41
403938
42
M65675FP
M65676FP
8
7
VD8
VD7
9
VD6
6
VD9
Outline 64P6N-A
Y in
DD2
AV
101112
VD5
VD4
Y
37
VD3
CVBS
SS2
AV
363534
131415
VD2
VD1
N.C.
VD0
33
16
C
SS2
DV
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
N.C.
N.C.
DV
DD1
TEST
SCL
SDA
ACK
RESET
Master/slave
OSD2
OSD1
OSD0
OSDCK
DV
SS1
DVDD1
DVDD2
NC : NO CONNECTION
1
Page 2
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
BLOCK DIAGRAM
AVSS2
AVDD2
Yin
Cin
LPF
BPF
DAC
DAY
AVSS1
AVDD1
Y ref
C ref
&
Clamp
bias
DAC
10bit
Interpolation
Y
6dB
Y/U
filter
C
6dB
10bit
DAC
C/V
6dB
MIX
Y/C
Chroma
Encoder
CVBS
Analog
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
TEST
RESET
DVSS2(X2)
DVSS1(X2)
DD2(X2)
DV
DD1(X2)
DV
OSD2
OSD1
OSD0
OSDCK
Encoder
Closed Caption
Y/U/V
Y/Cb/Cr
Video signal generator
OSD
Interface
Input
Interface
Manager
CGMS/WSS
Y
adder
C-sync
Burst
adder
Y
OSD
controller
Y
control
Blanking
Demulti Plexer
Manager
Video Anti Copy
signal adder (1)
Video Anti Copy
OSD mixer
Cb/Cr
Interpolation
filter
signal adder (2)
generator
sub carrier
U
V
Converter
Converter
Cb/Cr to U/V
Cb/U
Cr/V
8-color
Look-up
table RAM
Cb/U
Cr/V
CLK
generator
Oscillator
∗1
signal
generator
Anti Copy
Processing
control
register
pulse
Timing
Sync Processing
HD/VD
generator
generator
C-sync
generator
∗1: This function bloc is M65675FP only
SCL
slave
receiver
serial interface
register
Commands
SDA
ACK
Y
PXD [7:0]
VD [9:0]
PXCLK
Xout
Xin
HD
VD
/Slave
Muster
2
Page 3
±15µ
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
ABSOLUTE MAXIMUM RATINGS
SymbolParameter
V
DD
V
I
V
O
T
a
T
stg
RECOMMENDED OPERATING CONDITION
DC supply voltage-0.3 4.5V
Digital input voltage-0.3
Digital output voltage-0.3
Operating temperature -20+25 +75°C
Storage temperature -40+125°C
(Ta=25∞C, DV
SymbolParameterTest conditions
Supply
DDX
DV
AV
DI
AI
DDX
DD
DD
Digital supply voltage 3.0 3.3 3.6V
Analog supply voltage3.15 3.33.45V
Digital current consumption 0 45mA
Analog current consumption 0 55mA
Digital input
IL
V
IH
V
IL
I
I
C
Input voltage
Input leakage currentDV
Input capacitancef=1MHz, V
DV
DV
Digital output
OL
V
OH
V
O
C
2
I
C bus
I
O
I
OZ
Output voltageDV
Output capacitancef=1MHz, V
Output currentDV
Output leakage current (off)DV
D/A converter
ResResolution 10Bit
INLIntegral non-linearity errorRref=2.2kΩ, R
DNLDifferential non-linearity errorRref=2.2kΩ, R
Vf
SMAX
Maximum output amplitude000 to 3FF 1.5V
6-dB amplifier
R
G
G
DR
DR
bias
V_YC
V_CV
in
out
Bias resistor 7.5 1011.5kΩ
Voltage gain (Y/C)5.506.006.50dB
Voltage gain (CVBS)5.106.006.85dB
Input dynamic range 0.8V
Output dynamic range 1.6V
Limits
Min.Typ.Max.
DD
V
V
DD
DD
=AV
+0.3
+0.3
DD
=3.3V, DV
Unit
V
V
SS
=AV
SS
=0V, unless otherwise noted)
Limits
Min.Typ.Max.
DD
=3.0V 0 0.8V
DD
=3.6V 2.5 3.6V
DD
DD
DD
DD
I
=3.0V , V
=0V or V
DD
=0V 7 15pF
=3.3V, | IO |<1µA
DD
=0V 7 15pF
=3.0V , V
IL
=3.6V , V
=0V or V
I
L
L
I
=3.6V
3.25V
=0.4V 4.0mA
=3.6V
I
=300Ω±
=300Ω±
0.05V
±15µA
2.0LSB
1.0LSB
Unit
A
P-P
P-P
P-P
3
Page 4
MITSUBISHI ICs (TV)
◊
◊
◊
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M65675FP/M65676FP System Architecture
Block Diagram of M65675FP/M65676FP
The M65675FP/M65676FP block diagram is shown in Fig. 3.1.
The M65675FP/M65676FP consists of 4 functional blocks: a video
signal processing, a synchronization control, a serial interface and
an analog signal processing blocks. The video signal processing
block includes an input interface, OSD interface, YCbCr to YUV
converter/encoder and copy protection signal generator (This
function block is M65675FP only).
A sync generator and timing pulse generator are in the
synchronization control block. The serial interface block has an I
slave register and command register. The analog signal processing
block includes two 10-bit DACs, a Y/C mixing circuit and three 6-dB
amplifiers.
General Description of Each Functional Blocks
Video Signal Processing Block
The Y/Cb/Cr or Y/U/V are converted into digital Y/C signals in
accordance with either NTSC and B/G-PAL standards. In addition
the closed caption, CGMS/WSS and copy protection signals will be
inserted in that digital Y/C signals.
[Input Interface]
The multiplexed Y/Cb/Cr or Y/U/V pixel data are divided by the
individual components, then the Cb/Cr or U/V data rate is increased
from 6.75 Mbps up to 13.5Mbps.
[OSD Interface]
The digital video signal in the CLT (Color Look-up Table) is overlaid
with OSD data according to the external instructions.
[Y/Cb/Cr to Y/U/V Converter]
It converts the Y/Cb/Cr into Y/U/V, and then c-sync and burst signals
are inserted on the converted Y and U/V signals, respectively.
However, the burst insertion is not done in the Y/U/V output mode.
[Encoder]
The closed caption, CGMS/WSS and copy protection signals are
inserted into the Y signal and C signal is modulated into the
appropriate standards. After that processing, both Y and C signals
will be oversampled.
[Copy Protection Processing]
According to the copy protection setting, VBI pulse (AGC and
backporch pulse) and Advanced Split Burst are generated in
accordance with Macrovision Rev 7.01.
2
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Synchronization Control Block
C-sync and several timing control signals for internal use are
generated with 3 different H/V sync signals as reference. 1st
reference H/V sync signal is external input, 2nd is internally
generated one and 3rd is decoded one in digital blanking code
(SAV, EAV etc.)
Serial Interface Block
The registers can be read and written according to I
The data transport to the internal blocks is performed on the trailing
edge of V-sync, except for some set-up registers.
C
◊ Analog Signal Processing Block
The output of the 10-bit DAC is 1.2VP-P at the sampling frequency
of 27.0MHz. The inputs of Yin and Cin are set up to 0.6VP-P (Typ)
and the component outputs will be amplified by 6-dB up to 1.2VP-P
(Typ). The analog composite signal from the mixing circuit is also
amplified up to 1.2VP-P (Typ)
Functional Description
Video Signal processing
Input Interface
Input Format
The video encoder accepts 16/8-bit CCIR601 and CCIR656 format.
The specifications of these format are described as follows;
◊ 16-bit CCIR601 Interface
PXCLK=13.5MHz
Y=8-bit/13.5Mbps
16-235 straight-binary-data
Cb/Cr=8-bit/13.5 Mbps (Cb=Cr=8-bit/6.75 Mbps)
16-240 128 offset-binary-data
Active video area525/60=720-pixel¥480 line/frame
(22/284 line-263/525 line)
625/50=720-pixel¥576 line/frame
(23/336 line-310/623 line)
◊ 8-bit CCIR601 Interface
PXCLK=27.0MHz
Cb/Y/Cr=8-bit/27.0Mbps
Y= 8-bit/13.5Mbps
16-235 straight-binary-data
Cb/Cr=8-bit/13.5Mbps (Cb=Cr=8-bit/6.75Mbps)
16-240 128 offset-binary-data
Active video area525/60=720-pixel¥480 line/frame
(22/284 line-263/525 line)
625/50=720-pixel¥576 line/frame
(23/336 line-310/623 line)
2
C bus format.
4
Page 5
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
◊ CCIR656 Interface
PXCLK=27.0MHz
Cb/Y/Cr=8-bit/27.0Mbps
Y=8-bit/27.0Mbps
16-235 straight-binary-data
Cb/Cr=8-bit/13.5Mbps (Cb=Cr=8-bit/6.75 Mbps)
16-240 128 offset-binary-data
Active video area525/60=720-pixel¥480 line/frame
(22/284 line-263/525 line)
625/50=720-pixel¥576 line/frame
(23/336 line-310/623 line)
Vertical blanking Interval 525/60=1/264-9/272
Digital field 1 (ODD)=4-265
Digital field 2 (EVEN)=266-3
625/50=624/311-22/335
Digital field 1 (ODD)=1-312
Digital field 2 (EVEN)=313-625
X Æ 16 (Blanking period)
Cb/Cr : X£16 Æ 16
(U/V)X≥240Æ240 (Active video period)
X Æ 128 (Blanking period)
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
OSD Interface
Color Look-up Table (CLT)
The built-in CLT can be equivalent to 4bit¥8 colors, so that the
reproduced colors are 8/4096.
The setting ranges and the signal levels in the overlaying of Y, Cb
and Cr each are shown below;
Y :Setting range=1 (h) to F (h) : straight-binary data
Signal Level=10 (h) to F0 (h) : straight-binary data
Cb/Cr : Setting range=1 (h) to F (h) : 8 offset-binary data
Signal level=10 (h) to F0 (h) : 128 offset-binary data
OSD Control
Overlaying the appointed data on the video signal from MPEG is
possible by inputting the address data to the CLT in synchronization
with OSDCLK, H-sync and V-sync. The overlaying is prohibited in
case CLT address is set to 7 (h).
The OSD control specifications are shown below;
◊ OSDCLK= selectable 13.5MHz or 6.75MHz
selectable continuous or discontinuous
(pausing during H-sync) clock
◊ Color Signal Blend=Maximum 3 colors are allowed to be set.
The data of CLT addresses 0 (h) to 2 (h) are
dedicated to color blending.
The blend ratio is fixed by 1:1 and blend
mode is selectable between Y/Cmix and Ymix
mode.
Y/Cb/Cr to Y/U/V Converter
C-sync Addition
The sync signal, set up in the register, is added to Y signal
according to C-sync timing generated from H-sync/V-sync. Typical
sync height, set up in the register, is calculated by the following
equations;
Sync level={(White peak input level-16)¥2.5¥Xsync (IRE)}/100
In the case ofNTSC: {(235-16)¥2.5¥40}/100=219 (DBH)
PAL : {(235-16)¥2.5¥43}/100=235.4 (EBH)
Note: Xsync=Output sync level (IRE)
Digital Multiplexing
The input pixel data described in 4.1.1.1 are de-multiplexed, then Y,
Cb,Cr and Y, U, V signals will be converted to each 8-bit parallel
data. After the above conversion, 6.75Mbps Cb, Cr/U, V data are
interpolated at a double clock rate of 13.5Mbps.
PXCLK Processing
PXCLK is generated from the 27.0MHz system clock according to
the appropriate selected format and the clock signal for Y, Cb, Cr/Y,
U, V data de-multiplexing is also generated.
5
Set-up Control (NTSC)
In the NTSC signal generation mode, three set-up modes are
possible according to the register.
Selectable set-up modes are;
The Cb/Cr data are converted into the U/V data by the following
equations;
U=0.493¥Cb/0.564
V=0.877¥Cr/0.713
Page 6
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
Burst Insertion
The burst signal, set up in the corresponding register, is inserted to
Cb/Cr according to the burst timing signal.
The burst signal is derived from the following equations;
NTSC=ABS (Burst level-128)¥5/5.47 (IRE)
Ex. 40IRE=54H
PAL={ABS (Burst level-128)¥5/5.47}¥÷2 (IRE)
Ex. 43IRE=5EH
Video Anticopy Signal Addition [1]
(VBI Amplitude/CSP)
This applies to M65675FP only.
Sync-amplitude function and Color StripeTM control function are
carried out according to the corresponding register, in accordance
with Macrovision Video Anti Copy Process Rev. 7.0 dated
September 6 1996.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Encoder
Closed Caption Encoding
In the NTSC (525/60) mode, 8-bit¥2byte data, including parity bit,
set in the register are converted into the format shown in fig. 1 and
then will be inserted in the video signal according to the register
data of the closed captions control specification (closed caption on/
off and caption data insertion mode). After the completion of
transmission, the new data are loaded in the register by setting the
close caption flag to "1", then the transferred data are loaded in the
register on the trailing edge of V-sync pulse by setting that flag to
"0". (In case the closed caption flag is "1", the new data loading is
halted and the caption data are not inserted in the video signals).
20(283) line
Color
Burst
10.500±0.5µs
7 cycles of 503kHz
(Clock Run-in )1st. byte2nd. byte
CCD00
START BIT
12.910µs
3.972+0.2/-0.0µs
51.268+0.2/-0.0µs
61.331±0.5µs
63.556µs
21(284) line
Parity BitParity Bit
CCD03
CCD04
CCD05
CCD06
CCD07
CCD01
CCD02
CCD10
33.764µs
CCD11
CCD12
Fig. 1 CLOSED CAPTION WAVEFORM
CCD13
CCD14
CCD15
CCD16
CCD17
22(285) line
6
Page 7
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
CGMS (IEC 1880) Encoding
In the NTSC (525/60) mode, the 20-bit data, consisting of 14-bit
data including CRCC code and 6-bit error correction code
generated by the input data, are converted into the video format
Color
Burst
Ref Bit
bit 1
bit 2
2.232±50µs
bit 3
bit 4
Input Data
bit 5
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
shown in fig. 2 and then inserted in TV line 20/283, according to the
register data of CGMS control mode (CGMS on/off).
The transferred data are loaded to the register on the trailing edge
of V-sync, after a write-enable (WE) was set to "1".
CRCC
bit 6
bit 8
bit 9
bit 10
bit 11
bit 7
bit 12
bit 13
bit 14
bit 15
bit 16
bit 17
bit 18
bit 19
bit 20
70±10 IRE
11.2±0.3µs
63.556µs
20(283) line19(282) line
Fig. 2 CGMS WAVEFORM
WSS (ETS 300 294) Encoding
In the PAL (625/50) mode, 14-bit data, set in the register, is
modulated to the signal format shown in fig. 3 and then will be
inserted into TV line 23, according to the register data of WSS
Run in Start code
Color
Burst
1E3C1F1F1C71C7group1
Aspect
Ratio
(4bit)
49.1±0.3µs
21(284) line
control mode (WSS on/off).
The new register data are loaded on the trailing edge of V-sync,
after a write-enable (WE) was set to "1".
Input Data
group2
Enhanced
Services
(4bit)
group3
Subtitles
(3bit)
group4
Others
(3bit)
"0"
200±10ns
500mV±5%
"1"
200±10ns
11.0±0.25µs
22 line
27.4±1.4µs
64.0µs
23 line
24line
Fig. 3 WSS WAVEFORM
7
Page 8
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
Color Subcarrier Generation
32-bit accuracy color subcarrier is generated from 27-MHz clock
signal according to the register data.
The subcarrier frequencies are as follows;
M-fsc mode=455fH/2
=3.579545MHz±10Hz
B-fsc_1 mode=1135fH/4
=4.43359375±5Hz
B-fsc_2 mode=1135f
Note:The above carrier frequencies are based on the input clock frequency of
27.0MHz. So, the generated subcarrier is also fluctuated according to a drift
of the external clock frequency.
Interpolation
The 13.5MHz data of Y, U and V are processed by an a v arage-v alue
interpolation and then each data rate are increased up to two times
that of 27.0MHz.
Chroma modulation
The selected subcarrier frequency, which generated 27.0MHz rate
U and V signals, is modulated.
Video Anticopy Signal Addition [2]
(Pseudo Sync/AGC/Back Porch Pulses)
This applies to M65675FP only.
The several anticopy signals (Pseudo Sync/AGC/Back Porch
Pulses), in accordance with Macrovision Video anticopy processes
Rev.7.01 dated Sep. 6, 1996, are inserted into the appropriate
video signals according to the register data. (This applies to
M65675FP only)
Video Anticopy Signal Generation
This applies to M65675FP only.
Several anticopy signals in accordance with Macrovision anticopy
processes Rev. 7.01 dated Sep. 6, 1996 are added to Y/C output
signals according to the I
For more information about Macrovision video anticopy processes,
please contact nearest MITSUBISHI Electric sales office.
The video anticopy specification is provided to only those
customers of MITSUBISHI Electric Corp. who have executed a
license or a non-disclosure agreement with Macrovision Corp.
Sample request and sales orders require the following procedure.
In the case of the customers who have no license.
◊Contact VP sales & marketing,ACP-PPV, Macrovision
Corporation.
Phone : USA (408) 743-8600
Fax : USA (408) 743-8610
◊Complete the appropriate agreement with Macrovision.
◊Then, inform to MITSUBISHI in writing that the agreement has
completed.
H/4+25Hz
=4.43361875±5Hz
2
C register data.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
◊Samples will then be sent to customer after MITSUBISHI's
confirmation of it.
Sales Orders
◊ In case the customer has a Macrovision license:
The customer provides MITSUBISHI Electric Corp. with a written
confirmation of the license.
Customer can then purchases M65675FP.
◊ In case the customer does not have a Macrovision license:
The customer must obtain a license or waiver from Macrovision.
The customer must provide MITSUBISHI Electric Corp. with a
written confirmation of the license or waiver from Macrovision.
Customer can then purchases M65675FP.
Synchronization Control
Sync Signal Processing
The H/V sync signals are available in following 3 conditions; (1) in
synchronization with external sync signal, (2) in a slave mode which
refers to a digital blanking code and (3) in a master mode which
refers to a internally generated sync signal, according to the
register data. The timing specifications in each modes are as
follows;
◊ The slave mode
A number of internal timing signals are generated with the trailing
edge of sync signals (shown in 4.2.1) as reference. All signals can
be adjusted in 13.5MHz-step up to ±1.2ms with respect to the
reference sync signal.
8
Page 9
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
Composite-sync Generation
The timing-corrected c-sync signal, for an addition to the Y signal, is
generated in accordance with RS170A (NTSC) and CCIR (PAL)
standards, as shown in fig. 4.
IRE
133
100
90
0.714V
0.286V
-40
cycle counts (13.5MHz)
peak level including chroma signal
20
4
0
white peak level
0H(reference point)
1.5±0.1µs
0.14±0.1µs
06310612783772
858
10.9±0.2µs
9.4±0.1µs
4.7±0.1µs
19 cycles
40
±2
9 cycles
set-up
7.5±2
0.14±0.2µs
2.3±0.1µs
0313660
429460795429
cycle counts (13.5MHz)
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Equalizing pulseSerrated pulse
0.14±0.2µs0.14±0.2µs
4.7±0.1µs27.1µs
31.7775µs
31.7775µs
0.14±0.2µs
Fig. 4-1 NTSC HORIZONTAL SYNC SIGNAL (referred to EIARS170A)
IRE
133
100
90
0.7V
10
0.3V
-43
0.3±0.1µs
cycle counts (13.5MHz)
peak level including chroma signal
white peak level
0H(reference point)
50
0
1.5±0.3µs
06310714284476
864
12±0.3µs
5.6±0.1µs
4.7±0.2µs
0.2±0.1µs
43
±10%
10±1cycles
set-up
0-2
Fig. 4-2 PAL HORIZONTAL SYNC SIGNAL (referred to CCIR)
Serial Interface
The M65675FP/M65676FP has a serial data receiver, in
compliance with both typical and high speed modes, based on I
serial bus specification. The slave-address of it also responds to
two addresses of 40h and 42h. The address setting is done by
following procedure;
address setting pin DVASEL (pin 3) is "L" and "H" for the address of
40h and 42h, respectively.
The serial data are stored in the data register in the serial interface
block according to the appointed address after the receipt of the
2
Equalizing pulseSerrated pulse
0.2±0.1µs
2.35±0.1µs
0323680
432464800432
cycle counts (13.5MHz)
0.2±0.1µs0.2±0.1µs
62.0µs
4.7±0.2µs27.3µs
62.0µs
data. The stored data will be loaded to the registers in each internal
blocks at the timing of the first trailing edge of V-sync after the
transmission flag (WE) have been set up.
C
Analog Blocks
D-A Converter
The M65675FP/M65676FP has two 10-bit D-A converters. A
reference current of the D-A converters is supplied directly through
the Yref and Cref pins. The power save mode cuts the circuit
current. The maximum output amplitude is 1.2VP-P.
0.2±0.1µs
9
Page 10
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
Y and C Mixing Circuit
The analog outputs of D-A converters are filtered and then input to
the M65675FP again. The Y and C signals, whose maximum
amplitude is 0.6VP-P, are combined and the resulting composite
signal (CVBS) is output. The maximum amplitude of CVBS output is
1.2VP-P.
6-dB Amplifier
The M65675FP has three 6-dB amplifiers. The maximum input is
0.6VP-P and the resulting maximum output will be 1.24VP-P. The
maximum drivability and band width are 1mA and 6MHz,
respectively.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Operating Description
Initialize
After power-on, the M65675FP/M65676FP has two different
initialize sequences in the master and slave modes, respectively.
In the master mode, the internal registers are initialized responding
to the reset signal. After reset, the serial registers are set to the
default data and an internal control clock (13.5MHz) is generated
from the system clock.
In the slave mode, the internal registers are initialized the same as
in the master mode. The ser ial registers are set up to the default
data and the system clock generates the internal control clock (13.5
MHz) in the synchronization with the trailing edge of the horizontal
sync signal (H-sync), after reset. (Referring to Fig. 5)
In case the serial registers are set up to data other than the default
ones, the data should be renewed according to the I
in both the master and slave modes, after reset.
2
C bus format
·In the master modeÒ
System clock
(27.0MHz)
Reset
H-sync
·In the slave modeÒ
System clock
(27.0MHz)
Reset
H-sync
Generation starting timing
of reference clock
Generation starting timing
of reference clock
Fig. 5 GENERATION STARTING TIMING OF INTERNAL REFERENCE CLOCK
10
Page 11
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Serial Register
The serial address register can be addressed by I2C bus.
The M65675FP/M65676FP has two slave addresses, 40 and 42h.
In the actual use, one of two is selected and then Pin 3 (DVASEL)
is set according to the selected address data
Power Down Control
"0" power down "off"
"1" power down "on"
Input Video Data Format Selection
"0" Y/U/V input
"1" Y/Cb/Cr input
Pixel Data Sep. Timing Control (Y/C)
"0" Y/C separation in inverted timing
"1" Y/C separation in non-inverted timing
Pixel Data Sep. Timing Control (Cb/Cr)
"0" Y/C separation in inverted timing
"1" Y/C separation in non-inverted timing
Color Bar Generation Control
"0" color bar generation "off"
"1" color bar generation "on"
Input Pixel Data Field Frequency Setting
"0" 525/60 field
"1" 625/50 field
Line Phase Inversion Control in V-axis
"0" Phase Inversion "off" (NTSC)
"1" Phase Inversion "on" (PAL)
Selection of DAC Output
"0" Y/C output
"1" U/V output
SCH Phase Control
"0" SCH Phase Control "on"
"1" SCH Phase Control "off"
Default
Data
20h
Color look-up table
should be initialized.
03h
12
Page 13
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Register Functional Description (cont.)
Sub
address
01
02
02
03sync (7:0)Sync Signal Output Level SettingDBh
04burst (6:0)Burst Level Setting54h
05SD (4:0)Composite Sync Multiplexing Timing Setting19h
06YD (4:0)Luma Signal Delay Setting04h
07TINT (7:0)Chroma Output TINT Control00h
08CC10 (6:0)1st Byte Data Setting for Field 100h
09CC11 (6:0)2nd Byte Data Setting for Field 100h
0ACC20 (6:0)1st Byte Data Setting for Field 200h
0BCC21 (6:0)2nd Byte Data Setting for Field 200h
0C
:
0D
0E
0EBLD (1:0)
0F
:
1A
1B
:
2D
NameFunctionRemark
offset
CGMS/WSS
CC1FClosed Caption Data Transmission Flag in Field 1.
CC2FClosed Caption Data Transmission Flag in Field 2.
CCI/F
CCD (1:0)
CCIR (1:0)
CG (14:1)
[WS (13:0)]
CLTEN
OSDCLK
BLD mode
CTY (00:63)
CTB (00:63)
CTR (00:63)
N0
:
N21
fsc Offset Frequency (25Hz) Control
"0" offset no-addition
"1" offset addition
Closed Caption Generation Setting
"00" generation "off"
"01" generation for only field 1
"10" generation for only field 2
"11" reserved
Input Pixel Data Format Setting
"00" CCIR656
"01" 8bit CCIR601
"10" 16bit CCIR601
"11" reserved
CGMS or WSS Data Setting00h
CLT Data Renewing Enable
"0" disable
"1" enable
OSDCLK Frequency Setting
"0" 6.75MHz
"1" 13.5MHz
Blending Mode Setting
"0" Y and C are mixing
"1" Only Y is mixing
Blending Color Address Setting
"00" blending "off"
"01" CLT0 is set for a blending color
"10" CLT(1:0) is set for a blending Color
"11" CLT(2:0) is set for a blending color
Color Look-up table RAM Setting00h
Macrovision Setting00h
It have to set "1"
in the setting of
525/625=0
It is active in the
setting of 525/625=0.
CGMS/WSS
selection is depend
on 525/62 setting.
In the case of "1",
C is equal to the
OSD setting color.
Default
Data
03hsetup (1:0)
00h
00h
00h
00h
00h
13
Page 14
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
DESCRIPTION OF PIN
Pin No.Pin nameTypeFunction
1DVSS2Supply Digital ground for I/O.
2PXCLKO
3DVASELI
4HDI/O
5VDI/O
6VD9
7VD8
8VD7
9VD6
10VD5
11VD4
12VD3
13VD2
14VD1
15VD0
16DV
17DVDD2Supply Digital positive supply for I/O.
18DVDD1Supply Digital positive supply for internal logic.
19DVSS1Supply Digital Ground for internal logic.
20OSDCKO
21OSD0
22OSD1
23OSD2
24Master/SlaveI
25RESETIAsynchronous reset, active "LOW".
26ACKOAcknowledge line (Open drain output).
27SDAI/OSerial data line/Acknowledge line (Open drain output).
28SCLISerial clock line.
29TESTI
30DV
31N.C.No connection.
32N.C.No connection.
33CO
34N.C.No connection.
35CVBSO
36AVSS2Supply Analog ground for 6-dB amplifiers.
37YO
38AVDD2Supply Analog positive supply for 6-dB amplifiers.
39YinI
40N.C.No connection
41CinI
SS2Supply Digital ground for I/O.
DD1Supply Digital positive supply for internal logic.
Reference clock for pixel data input.
The clock frequency is 27.0MHz or 13.5MHz in CCIR656/8-bit CCIR601 or 16-bit CCIR601 input
mode, respectively.
2
C slave address setting.
I
"Low" is for the slave address of 40h.
"High" is for the slave address of 42h.
Horizontal sync signal.
It is an input or output in the slave or master mode, respectively.
Vertical sync signal.
It is an input or output in the slave or master mode, respectively.
Video data inputs.
The input video data are the luma (Y) data as defined in CCIR Rec 601 in 16-bit CCIR601 mode.
I/O
In the Y/U/V output mode, the output is 10-bit luma signal with a composite sync.
In 16-bit CCIR601 mode, an MSB and LSB is VD7 and VD0, and in the Y/U/V output mode, VD9 and
VD0, respectively.
Reference clock for the external OSD microprocessor.
The frequency is 13.5MHz or 6.25MHz, alternated by I
Color Look-up table address input.
I
MSB and LSB is OSD2 and OSD0, respectively.
Synchronizing mode selection.
"Low" is for the slave mode.
"High" is for the master mode.
Test mode control.
It should be grounded during actual use.
The analog chroma output signal from 6-dB amplifier.
The output amplitude is 1.0V
The analog composite video output signal from 6-dB amplifier.
The output amplitude is 1.24V
The analog luma output signal from 6-dB amplifier.
The output amplitude is 1.2V
The analog luma input from an external LPF.
This input has clamp circuit. The signal must input via capacitor.
The analog chroma input from an external LPF.
This input has bias circuit. The signal must input via capacitor.
P-P (typ.), while the input one is 0.5VP-P.
P-P (typ.).
P-P (typ.), while the input one is 0.6VP-P.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
2
C bus control.
14
Page 15
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
DESCRIPTION OF PIN (cont.)
Pin No.Pin nameTypeFunction
42CcompI
43DACO
44AV
45AV
46DAYO
47CrefI
48YrefI
49YcompI
50N.C.No connection.
51DV
52DVSS1Supply Digital ground for internal logic.
53XoutO
54XinI
55DV
56PXD7
57PXD6
58PXD5
59PXD4
60PXD3
61PXD2
62PXD1
63PXD0
64DVDD2Supply Digital positive power supply for I/O
DD1Supply Analog positive supply for D/A converters.
SS1Supply Analog ground for D/A converters.
DD1Supply Digital positive power supply for internal logic.
SS2Supply Digital ground for I/O.
Phase compensation for chroma or V D/A converters.
It should be connected to the analog ground via a capacitor.
Chroma or V signal output.
It should be connected to the analog supply via a resistor (RL).
The output amplitude is set up by reference resistor (Rref) and RL.
Luma or V signal output.
It should be connected to the analog supply via a resistor (RL).
The output amplitude is set up by reference resistor (Rref) and RL.
Reference current control for chroma or V D/A converter.
It should be connected to the analog supply via a reference resistor (Rref).
Reference current control for luma or U D/A converter.
It should be connected to the analog supply via a reference resistor (Rref).
Phase compensation for luma or U D/A converters.
It should be connected to the analog ground via a capacitor.
System clock output.
It should be in no connection except that it is connected to a X'tal oscillator.
System clock input.
The clock frequency is 27.0MHz only.
Pixel data inputs.
The acceptable video data are;
multiplexed video data (Y/Cb/Cr) including timing reference code of SAV and EAV as defined in
I
CCIR Rec656, and multiplexed video data (Y/Cb/Cr) as defined in CCIR Rec601, and multiplexed
Color difference signals (Cb/Cr).
An MSB and LSB is PXD7 and PXD0, respectively.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Interface
The M65675FP/M65676FP has two interfaces as follows;
Pixel data interface
OSD interface
Pixel Data Interface
The M65675FP/M65676FP accepts these 6 digital pixel data
formats as shown below;
In CCIR656
Y and Cb/Cr, in a digital video transmission format
Y and U/V, in a time multiplexed 8-bit serial data format
In CCIR601
Y and Cb/Cr, in a digital video transmission format
Y and U/V, in a time multiplexed 8-bit serial data format
Y, in a digital video transmission format and time multiplexed
Cb/Cr
Y and U/V, in a time multiplexed 16-bit serial data format
The 8-bit serial data in CCIR656 and CCIR601 are taken into the
15
M65675FP/M65676FP through PXDATA [7:0] ports synchronizing
with a pixel clock (PXCLK) generated by the LSI. In the case of
CCIR601 16-bit serial data, 8-bit color difference signals (Cb/Cr or
U/V) and luma signal (Y) are taken into the LSI synchronizing with
pixel clock (PXCLK) through PXD [7:0] and VD [7:0] port,
respectively.
CCIR656 pixel data are accepted in only the slave mode, while
CCIR601 ones are accepted in both the master and slave modes.
In the case of CCIR656 pixel data, H/V sync and a field
identification signals are regenerated internally referring to SAV and
EAV code multiplexed in the pixel data. In the case of CCIR601
pixel data, H/V sync and the field identification signals are
regenerated internally, then the H and V sync signals are available
via HD and VD ports in the master mode operation, respectively.
Moreover, in the slave mode, the M65675FP/M65676FP is in the
slave operation synchronized with H/V sync signals via HD/VD
ports and a field identification is done using the H/V sync input
signals.
Page 16
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
The pixel data interface pin assignment is shown in Table 1.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
Table 1 Pixel Data Interface Pin Assignment
Pin nameI/OFunction
PXCLKO
(Note1)I/OHorizontal sync signal. Input in the slave or output in the master mode.
HD
VD (Note1)I/OVertical sync signal. Input in the slave or output in the master mode.
PXD [7:0]I
PD [7:0]I
Note1 : In CCIR656 mode, H sync and V sync generated by EAV will be output via terminals HD and VD, respectively.
Pixel clock output.
In the case of CCIR656 / CCIR601 8-bit data and CCIR601 16-bit inputs, this will be a free-run clock of 27MHz and
13.5MHz, respectively.
Pixel data input.
8-bit data input in CCIR656 / CCIR601 or the color differential signals (Cb/Cr) input in CCIR601 16-bit data format.
Pixel data input.
Luma (Y) data input in CCIR601 16-bit data format.
OSD Interface
The OSD data, which are storaged in the address assigned by the
color look-up table RAM (CLT-RAM) address data input via OSD
[2:0] ports, are multiplexed into the Y signal synchronizing with OSD
clock (OSDCK) delivered from the M65675FP/M65676FP.
The OSD interface pin assignment is shown in Table 2.
13.5MHz free-run clock or 6.25MHz H-start-and-stop clock.
16
Page 17
MITSUBISHI ICs (TV)
PRELIMINARY
Notice:This is not a final specification.
Some parametric limits are subject to change.
M65675FP/M65676FP
DIGITAL NTSC/PAL ENCODER
APPLICATION EXAMPLE
A typical application diagram of the M65675FP/M65676FP together with the M65773FP 1-chip MPEG2 decoder is shown in Figure 6.
Y
C
CVBS
75Ω
75Ω
75Ω
0.1µF
220µF
Stage
300Ω
DAY
220µF
75Ω
Driver
2.2µF
2.2µF
Y
Y in
RESET
OSD(2:0)
OSDCK
ACK
SDA
SCL
SCL
SDA/ACK
RESET
AO0
AO1
AO2
AO3
LRCLK
DOCLK
DACCLK
ACLKO
ACLKI
BDER
0.1µF
C
2.2µF
CVBS
3
47µF
0.01µF
R/G/B
OSC1
OSD micro
computer
M35041
HDVDCS
VDD
RESET
VSS
SCK
SIN
Audio out (L)
Audio out (R)
Lch
Rch
Audio
DAC
LRCIN
DIN
XTI
BCKIN
47µF
0.01µF
47µF
0.01µF
27MHz
16M
SDRAM
2.2µF
DD
AVss
AV
Ccomp
TEST
Master/Slave
DVASEL
DVSS
DV
DD
X out
X in
47µF
0.01µF
27MHz
XO
2.2µF
0.1µF
Ycomp
VD(9:0)
VSS
VDD
CLK in
10kΩ
0.1µF
10kΩ
Yref
Cref
Digital
NTSC/PAL
Encoder
M65675FP
M65676FP
PXD(7:0)
8
PXD
PXCLK
MPEG2
System/
Video/Audio
Decoder
M65773FP
BD
1kΩ
Stage
Filter
Filter
300Ω
0.1µF
C in
DAC
PXCLKHDVD
VSYNC
HSYNC
BCLK
BDEN
BDREQ
17
8
BD
RCLK
BDEN
BDER
BDREQ
Chanel
Decoder
: 3.3V Supply for Analog/Digital
(Note 1) Connect a tantalum or electrolytic capacitor of 10µF or more and a ceramic
capacitor of 0.01µF each in parallel between DV
These capacitors should be placed as possible to the device.
(Note 2) In case several LSIs are connected to an I2C bus, SDA and ACK at power-down
should be tied externally in a situation when only M65675FP/M65676FP is power-off.
DD/AVDD and DVss/AVss pins.
3.3kΩ
CS
SCK
RESET
Host
CPU
Fig. 6 TYPICAL APPLICATION DIAGRAM
SIN
Units Resistance : Ω
Capacitance : F
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