10-Bit, 4× Oversampling
SDTV Video Decoder
ADV7180
FEATURES
Worldwide NTSC/PAL/SECAM color demodulation support
One 10-bit ADC, 4× oversampling for CVBS, 2× oversampling
for Y/C mode, and 2× oversampling for YPrPb (per channel)
Three video input channels with on-chip antialiasing filter
CVBS (composite), Y/C (S-video), and YPrPb (component)
video input support
5-line adaptive comb filters and CTI/DNR video
enhancement
Adaptive Digital Line Length Tracking (ADLLT™),
signal processing, and enhanced FIFO management give
mini-TBC functionality
Integrated AGC with adaptive peak white mode
Macrovision® copy protection detection
NTSC/PAL/SECAM autodetection
8-bit ITU-R BT.656 YCrCb 4:2:2 output and HS, VS, FIELD
1.0 V analog input signal range
Four general-purpose outputs (GPO)
Full feature VBI data slicer with teletext support (WST)
Power-down mode and ultralow sleep mode current
2-wire serial MPU interface (I
2
C® compatible)
1.8 V analog, 1.8 V PLL, 1.8 V digital, 3.3 V I/O supply
−40°C to +85°C temperature grade
Two package types:
40-lead, 6 mm × 6 mm, Pb-free LFCSP
64-lead, 10 mm × 10 mm, Pb-free LQFP
APPLICATIONS
Digital camcorders and PDAs
Low-cost SDTV PIP decoder for digital TVs
Multichannel DVRs for video security
AV receivers and video transcoding
PCI-/USB-based video capture and TV tuner cards
Personal media players and recorders
Smartphone/multimedia handsets
In-car/automotive infotainment units
Rearview camera/vehicle safety systems
FUNCTIONAL BLOCK DIAGRAM
XTAL1
XTAL
ANALOG
VIDEO
INPUTS
A
IN
1
A
IN
2
A
IN
3
A
IN
4
1
A
IN
5
1
A
IN
6
1
CLOCK PROCESSING BLOCK
PLL
ADLLT PROCESSING
LLC
FIFO
MUX BLOCK
OUTPUT BLOCK
AA
FILTER
AA
FILTER
AA
FILTER
10-BIT, 86MHz
ADC
DIGITAL
PROCESSING
BLOCK
2D COMB
8-BIT/16
1
-BIT
PIXEL DATA
P7 TO P0
VS
HS
FIELD
2
GPO
1
SFL
INTRQ
SHA
A/D
VBI SLICER
COLOR
DEMOD
REFERENCE
I
2
C/CONTROL
ADV7180
05700-001
SCLK SDATA ALSB RESET PWRDWN
1
ONLY AVAILABLE ON 64-LEAD PACKAGE.
2
40-LEAD PACKAGE USES ONE LEAD FOR VS/FIELD.
Figure 1.
GENERAL DESCRIPTION
The ADV7180 automatically detects and converts standard
analog baseband television signals compatible with worldwide
NTSC, PAL, and SECAM standards into 4:2:2 component video
data compatible with the 8-bit ITU-R BT.656 interface standard.
The simple digital output interface connects gluelessly to a wide
range of MPEG encoders, codecs, mobile video processors, and
Analog Devices, Inc., digital video encoders, such as the
ADV7179. External HS, VS, and FIELD signals provide timing
references for LCD controllers and other video ASICs, if
required
The accurate 10-bit analog-to-digital conversion provides
professional quality video performance for consumer applications
with true 8-bit data resolution. Three analog video input channels
accept standard composite, S-video, or component video
signals, supporting a wide range of consumer video sources.
1
2
AGC and clamp-restore circuitry allow an input video signal
peak-to-peak range up to 1.0 V. Alternatively, these can be
bypassed for manual settings.
The line-locked clock output allows the output data rate, timing
signals, and output clock signals to be synchronous,
asynchronous, or line locked even with ±5% line length
variation. Output control signals allow glueless interface
connections in many applications. The ADV7180 is programmed
via a 2-wire, serial, bidirectional port (I
2
C compatible).
The ADV7180 is fabricated in a 1.8 V CMOS process. Its
monolithic CMOS construction ensures greater functionality
with lower power dissipation. A chip-scale, 40-lead, Pb-free
LFCSP package option makes the decoder ideal for space-
constrained portable applications. A 64-lead LQFP package is
also available (pin compatible with ADV7181B).
The ADV7180 LFCSP-40 uses one pin to output VS or FIELD.
ADV7180 LQFP-64 only.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or 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.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
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