Multiformat 216 MHz
Video Encoder with Six NSV® 12-Bit DACs
ADV7320/ADV7321
High definition (HD) input formats
16-/20-, 24-/30-bit (4:2:2, 4:4:4) parallel YCrCb
Fully compliant with
SMPTE 274M (1080i, 1080p @ 74.25 MHz)
SMPTE 296M (720p)
SMPTE 240M (1035i)
RGB in 3-bit × 10-bit 4:4:4 input format
HDTV RGB supported
RGB, RGBHV
Other HD formats using async timing mode
Enhanced definition (ED) input formats
8-/10-, 16-/20-, 24-/30-bit (4:2:2, 4:4:4) parallel YCrCb
SMPTE 293M (525p)
BTA T-1004 EDTV2 (525p)
ITU-R BT.1358 (625p/525p)
ITU-R BT.1362 (625p/525p)
RGB in 3-bit × 10-bit 4:4:4 input format
Standard definition (SD) input formats
CCIR-656 4:2:2 8-/10-bit or 16-/20-bit parallel input
HD output formats
YPrPb HDTV (EIA 770.3)
RGB, RGBHV
CGMS-A (720p/1080i)
ED output formats
Macrovision® Rev 1.2 (525p/625p) (ADV7320 only)
CGMS-A (525p/625p)
YPrPb progressive scan (PS) (EIA-770.1, EIA-770.2)
RGB, RGBHV
SD output formats
Composite NTSC M/N
Composite PAL M/N/B/D/G/H/I, PAL-60
SMPTE 170M NTSC-compatible composite video
ITU-R BT.470 PAL-compatible composite video
S-video (Y/C)
EuroScart RGB
Component YPrPb (Betacam, MII, SMPTE/EBU N10)
Macrovision Rev 7.1.L1 (ADV7320 only)
CGMS/WSS
Closed captioning
GENERAL FEATURES
Simultaneous SD/HD or PS/SD inputs and outputs
Oversampling up to 216 MHz
Programmable DAC gain control
Sync outputs in all modes
On-board voltage reference
Six 12-bit NSV (noise shaped video) precision video DACs
2-wire serial I2C® interface, open-drain configuration
Dual I/O supply 2.5 V/3.3 V operation
Analog and digital supply 2.5 V
On-board PLL
64-lead LQFP package
Lead (Pb) free product
APPLICATIONS
EVD (enhanced versatile disk) players
High-end SD/PS DVD recorders/players
SD/PS/HDTV display devices
SD/HDTV set top boxes
Professional video systems
FUNCTIONAL BLOCK DIAGRAM
STANDARD DEFINITION
CONTROL BLOCK
COLOR CONTROL
BRIGHTNESS
DNR
GAMMA
PROGRAMMABLE
FILTERS
SD TEST PATTERN
Y9–Y0
C9–C0
S9–S0
D
E
M
U
X
ADV7320/
ADV7321
12-BIT
DAC
PROGRAMMABLE
RGB MATRIX
HIGH DEFINITION
CONTROL BLOCK
HD TEST PATTERN
HSYNC
VSYNC
BLANK
CLKIN_A
CLKIN_B
TIMING
GENERATOR
COLOR CONTROL
ADAPTIVE FILTER CTRL
SHARPNESS FILTER
O
V
E
R
S
A
M
P
L
I
N
G
12-BIT
DAC
12-BIT
DAC
12-BIT
DAC
12-BIT
DAC
12-BIT
DAC
I2C
INTERFACE
PLL
05067-001
FEATURES
Figure 1.
GENERAL DESCRIPTION
The ADV®7320/ADV7321 are high speed, digital-to-analog
encoders on single monolithic chips. They include six high
speed NSV video DACs with TTL-compatible inputs. They have
separate 8-/10-, 16-/20-, and 24-/30-bit input ports that accept
data in high definition (HD) and/or standard definition (SD)
video format. For all standards, external horizontal, vertical,
and blanking signals, or EAV/SAV timing codes, control the
insertion of appropriate synchronization signals into the digital
data stream and, therefore, the output signal.
Rev. A
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