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ADV7174 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADV7174
Beschreibung Chip Scale PAL/NTSC Video Encoder
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
ADV7174 Datasheet, Funktion
Data Sheet
Chip Scale PAL/NTSC Video Encoder with
Advanced Power Management
ADV7174/ADV7179
FEATURES
ITU-R1 BT601/BT656 YCrCb to PAL/NTSC video encoder
High quality 10-bit video DACs
SSAF™ (super sub-alias filter)
Advanced power management features
CGMS (copy generation management system)
WSS (wide screen signaling)
NTSC M, PAL N2, PAL B/D/G/H/I, PAL-M3 , PAL 60
Single 27 MHz clock required (×2 oversampling)
Macrovision 7.1 (ADV7174 only)
80 dB video SNR
32-bit direct digital synthesizer for color subcarrier
Multistandard video output support:
Composite (CVBS)
Component S-video (Y/C)
Video input data port supports:
CCIR-656 4:2:2 8-bit parallel input format
Programmable simultaneous composite and S-video or RGB
(SCART)/YPbPr video outputs
Programmable luma filters low-pass [PAL/NTSC] notch,
extended SSAF, CIF, and QCIF
Programmable chroma filters (low-pass [0.65 MHz, 1.0 MHz,
1.2 MHz, and 2.0 MHz], CIF, and QCIF)
Programmable VBI (vertical blanking interval)
Programmable subcarrier frequency and phase
Programmable LUMA delay
Individual on/off control of each DAC
CCIR and square pixel operation
Integrated subcarrier locking to external video source
Color signal control/burst signal control
Interlaced/noninterlaced operation
Complete on-chip video timing generator
Programmable multimode master/slave operation
Closed captioning support
Teletext insertion port (PAL-WST)
On-board color bar generation
On-board voltage reference
2-wire serial MPU interface (I2C® compatible and fast I2C)
Single-supply 2.8 V and 3.3 V operation
Small 40-lead 6 mm × 6 mm LFCSP package
−40°C to +85°C at 3.3 V
−20°C to +85°C at 2.8 V
Qualified for automotive applications
APPLICATIONS
Portable video applications
Mobile phones
Digital still cameras
VAA
RESET
COLOR
DATA
P7–P0
FUNCTIONAL BLOCK DIAGRAM
TTXREQ TTX
POWER
MANAGEMENT
CONTROL
(SLEEP MODE)
ADV7174/ADV7179
CGMS AND WSS
INSERTION
BLOCK
TELETEXT
INSERTION
BLOCK
YUV TO
RBG
MATRIX
8
4:2:2 TO
4:4:4
INTER-
8
POLATOR
8
Y8
YCrCb
TO
YUV
U8
MATRIX
V8
ADD 9 INTER- 9
SYNC
POLATOR
8
ADD
BURST 8
8
INTER-
POLATOR 8
PROGRAMMABLE
LUMINANCE
FILTER
10
PROGRAMMABLE
CHROMINANCE
FILTER
10
10
U
V
10
10
M
U 10
L
T
I
P
10
10-BIT
DAC
10-BIT
L DAC
10
E
X
10
10-BIT
E DAC
R
DAC A (PIN 29)
DAC B (PIN 28)
DAC C (PIN 24)
HSYNC
FIELD/VSYNC
BLANK
VIDEO TIMING
GENERATOR
I2C MPU PORT
REAL-TIME
CONTROL
CIRCUIT
10 10
SIN/COS
DDS BLOCK
VOLTAGE
REFERENCE
CIRCUIT
VREF
RSET
COMP
CLOCK
SCLOCK SDATA ALSB
SCRESET/RTC
GND
Figure 1.
1 ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
2 Throughout the document, N is referenced to PAL – Combination – N.
3 ADV7174 only.
The Macrovision anticopy process is licensed for noncommercial home use only, which is its sole intended use in the device. Contact the sales office for the latest
Macrovision version available.
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2002–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






ADV7174 Datasheet, Funktion
ADV7174/ADV7179
Data Sheet
3.3 V SPECIFICATIONS
VAA = 3.0 V–3.6 V1, VREF = 1.235 V, RSET = 150 Ω. All specifications TMIN to TMAX2, unless otherwise noted.
Table 3.
Parameter
STATIC PERFORMANCE3
Resolution (Each DAC)
Accuracy (Each DAC)
Integral Nonlinearity
Differential Nonlinearity
DIGITAL INPUTS3
Input High Voltage, VINH
Input Low Voltage, VINL
Input Current, IIN3, 4
Input Capacitance, CIN
DIGITAL OUTPUTS3
Output High Voltage, VOH
Output Low Voltage, VOL
Three-State Leakage Current
Three-State Output Capacitance
ANALOG OUTPUTS3
Output Current4, 5
Output Current6
DAC-to-DAC Matching
Output Compliance, VOC
Output Impedance, ROUT
Output Capacitance, COUT
POWER REQUIREMENTS3, 7
VAA
Normal Power Mode
IDAC (Max)8
IDAC (Min)8
ICCT9
Low Power Mode
IDAC (Max)8
IDAC (Min)8
ICCT9
Sleep Mode
IDAC10
ICCT11
Power Supply Rejection Ratio
Conditions1
RSET = 300 Ω
Guaranteed Monotonic
VIN = 0.4 V or 2.4 V
ISOURCE = 400 µA
ISINK = 3.2 mA
RSET = 150 Ω, RL = 37.5 Ω
RSET = 1041 Ω, RL = 262.5 Ω
IOUT = 0 mA
RSET = 150 Ω, RL = 37.5 Ω
RSET = 1041 Ω, RL = 262.5 Ω
COMP = 0.1 µF
Min Typ
Max Unit
10 Bits
± 0.6
±1
LSB
LSB
2V
0.8 V
± 1 µA
10 pF
2.4
10
V
0.4 V
10 µA
pF
33 34.7 37
mA
5 mA
2.0 %
0 1.4 V
30 kΩ
30 pF
3.0 3.3
3.6 V
115 120 mA
20 mA
35 mA
62 mA
20 mA
35 mA
0.1
0.001
0.01
0.5
µA
µA
%/%
1 The max/min specifications are guaranteed over this range. The max/min values are typical over 3.0 V to 3.6 V.
2 Temperature range TMIN to TMAX: –40°C to +85°C.
3 Guaranteed by characterization.
4 Full drive into 37.5 Ω load.
5 DACs can output 35 mA typically at 3.3 V (RSET = 150 Ω and RL = 37.5 Ω), optimum performance obtained at 18 mA DAC current (RSET = 300 Ω and RL = 75 Ω).
6 Minimum drive current (used with buffered/scaled output load).
7 Power measurements are taken with clock frequency = 27 MHz. Max TJ = 110°C.
8 IDAC is the total current (min corresponds to 5 mA output per DAC, max corresponds to 37 mA output per DAC) to drive all three DACs. Turning off individual DACs
reduces IDAC correspondingly.
9 ICCT (circuit current) is the continuous current required to drive the device.
10 Total DAC current in sleep mode.
11 Total continuous current during sleep mode.
Rev. C | Page 6 of 52

6 Page









ADV7174 pdf, datenblatt
ADV7174/ADV7179
Data Sheet
Table 7. Luminance Internal Filter Specifications
Filter Type
Filter Selection
Pass-Band Ripple
(dB)
MR04 MR03 MR02
Low-Pass 0 0 0 0.091
(NTSC)
Low-Pass 0 0 1 0.15
(PAL)
Notch (NTSC) 0 1 0 0.015
Notch (PATL) 0 1 1 0.095
Extended 1 0 0 0.051
(SSAF)
CIF 1 0 1 0.018
QCIF
1 1 0 Monotonic
3 dB Bandwidth
(MHz)
4.157
4.74
6.54
6.24
6.217
3.0
1.5
Stop-Band Cutoff
(MHz)
Stop-Band Attenuation
(dB)
7.37 −56
7.96 −64
8.3 −68
8.0 −66
8.0 −61
7.06 −61
7.15 −50
Table 8. Chrominance Internal Filter Specifications
Filter Type
Filter Selection
Pass-Band Ripple
(dB)
MR07 MR06 MR05
1.3 MHz
0 0 0 0.084
Low-Pass
0.65 MHz 0 0 1 Monotonic
Low-Pass
1.0 MHz
0 1 0 Monotonic
Low-Pass
2.0 MHz
0 1 1 0.0645
Low-Pass
Reserved 1 0 0
CIF 1 0 1 0.084
QCIF
1 1 0 Monotonic
3 dB Bandwidth
(MHz)
1.395
0.65
1.0
2.2
0.7
0.5
Stop-Band Cutoff
(MHz)
Stop-Band Attenuation
(dB)
3.01 −45
3.64 −58.5
3.73 −49
5.0 −40
3.01 −45
4.08 −50
Rev. C | Page 12 of 52

12 Page





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