LMH0031
SMPTE 292M/259M Digital Video Deserializer /
Descrambler with Video and Ancillary Data FIFOs
General Description
The
LMH0031
SMPTE
292M
/
259M
Digital
Video
Deserializer/Descrambler with Video and Ancillary Data
FIFOs is a monolithic integrated circuit that deserializes and
decodes SMPTE 292M, 1.485Gbps (or 1.483Gbps) serial
component video data, to 20-bit parallel data with a synchro-
nized parallel word-rate clock. It also deserializes and de-
codes
SMPTE
259M,
270Mbps,
360Mbps
and
SMPTE 344M (proposed) 540Mbps serial component video
data, to 10-bit parallel data. Functions performed by the
LMH0031 include: clock/data recovery from the serial data,
serial-to-parallel data conversion, SMPTE standard data de-
coding, NRZI-to-NRZ conversion, parallel data clock genera-
tion, word framing, CRC and EDH data checking and han-
dling, Ancillary Data extraction and automatic video format
determination. The parallel video output features a variable-
depth FIFO which can be adjusted to delay the output data
up to 4 parallel data clock periods. Ancillary Data may be
selectively extracted from the parallel data through the use
of masking and control bits in the configuration and control
registers and stored in the on-chip FIFO. Reverse LSB dith-
ering is also implemented.
The unique multi-functional I/O port of the LMH0031 pro-
vides external access to functions and data stored in the
configuration and control registers. This feature allows the
designer greater flexibility in tailoring the LMH0031 to the
desired application. The LMH0031 is auto-configured to a
default operating condition at power-on or after a reset com-
mand. Separate power pins for the PLL, deserializer and
other functional circuits improve power supply rejection and
noise performance.
The LMH0031 has a unique Built-In Self-Test (BIST) and
video Test Pattern Generator (TPG). The BIST enables com-
prehensive testing of the device by the user. The BIST uses
the TPG as input data and includes SD and HD component
video test patterns, reference black, PLL and EQ pathologi-
cals and a 75% saturation, 8 vertical colour bar pattern, for
all implemented rasters. The colour bar pattern has optional
transition coding at changes in the chroma and luma bar
data. The TPG data is output via the parallel data port.
The LMH0030, SMPTE 292M / 259M Digital Video Serializer
with Ancillary Data FIFO and Integrated Cable Driver, is the
ideal complement to the LMH0031.
The LMH0031's internal circuitry is powered from +2.5 Volts
and the I/O circuitry from a +3.3 Volt supply. Power dissipa-
tion is typically 850mW. The device is packaged in a 64-pin
TQFP.
Features
n
SDTV/HDTV serial digital video standard compliant
n
Supports 270 Mbps, 360 Mbps, 540 Mbps, 1.483 Gbps
and 1.485 Gbps serial video data rates with
auto-detection
n
LSB de-dithering option
n
Uses low-cost 27MHz crystal or clock oscillator
reference
n
Fast VCO lock time:
<
500 s at 1.485 Gbps
n
Built-in self-test (BIST) and video test pattern generator
(TPG)*
n
Automatic EDH/CRC word and flag processing
n
Ancillary Data FIFO with extensive packet handling
options
n
Adjustable, 4-deep parallel output video data FIFO
n
Flexible control and configuration I/O port
n
LVCMOS compatible control inputs and clock and data
outputs
n
LVDS and ECL-compatible, differential, serial inputs
n
3.3V I/O power supply and 2.5V logic power supply
operation
n
Low power: typically 850mW
n
64-pin TQFP package
n
Commercial temperature range 0C to +70C
* Patent applications made or pending.
Applications
n
SDTV/HDTV serial-to-parallel digital video interfaces for:
-- Video editing equipment
-- VTRs
-- Standards converters
-- Digital video routers and switchers
-- Digital video processing and editing equipment
-- Video test pattern generators and digital video test
equipment
-- Video signal generators
Ordering Information
Order Number
Package Type
NS Package Number
LMH0031VS
64-Pin TQFP
VEC-64A
January 2006
LMH0031
SMPTE
292M/259M
Digital
V
ideo
Deserializer
/
Descrambler
with
V
ideo
and
Ancillary
Data
FIFOs
2006 National Semiconductor Corporation
DS201796
www.national.com
Absolute Maximum Ratings
(Note 1)
It is anticipated that this device will not be offered in
a military qualified version. If Military/Aerospace speci-
fied devices are required, please contact the National
Semiconductor Sales Office / Distributors for availability
and specifications.
CMOS I/O Supply Voltage
(V
DDIO
V
SSIO
):
4.0V
SDI Supply Voltage
(V
DDSI
V
SSSI
):
4.0V
Digital Logic Supply Voltage
(V
DDD
V
SSD
):
3.0V
PLL Supply Voltage
(V
DDPLL
V
SSPLL
):
3.0V
CMOS Input Voltage
(Vi):
V
SSIO
-0.15V to
V
DDIO
+0.15V
CMOS Output Voltage
(Vo):
V
SSIO
-0.15V to
V
DDIO
+0.15V
CMOS Input Current (single input):
Vi = V
SSIO
-0.15V:
-5 mA
Vi = V
DDIO
+0.15V:
+5 mA
CMOS Output Source/Sink Current:
6 mA
I
BB
Output Current:
+300 A
I
REF
Output Current:
+300 A
SDI Input Voltage
(Vi):
V
SSSI
-0.15V to
V
DDSI
+0.15V
Package Thermal Resistance
JA
@
0 LFM Airflow
40.1C/W
JA
@
500 LFM Airflow
24.5C/W
JC
5.23C/W
Storage Temp. Range:
-65C to +150C
Junction Temperature:
+150C
Lead Temperature (Soldering 4
Sec):
+260C
ESD Rating (HBM):
6.0 kV
ESD Rating (MM):
400 V
Recommended Operating Conditions
Symbol
Parameter
Conditions
Reference
Min
Typ
Max
Units
V
DDIO
CMOS I/O Supply Voltage
V
DDIO
-V
SSIO
3.150
3.300
3.450
V
V
DDSD
SDI Supply Voltage
V
DDSI
-V
SSSI
V
DDD
Digital Logic Supply
Voltage
V
DDD
V
SSD
2.375
2.500
2.625
V
V
DDPLL
PLL Supply Voltage
V
DDPLL
V
SSPLL
T
A
Operating Free Air
Temperature
0
+70
C
Required Input Conditions
(Note 9)
Symbol
Parameter
Conditions
Reference
Min
Typ
Max
Units
V
IN
Input Voltage Range
All LVCMOS
Inputs
V
SSIO
V
DDIO
V
t
r
, t
f
Rise Time, Fall Time
10%90%
1.0
1.5
3.0
ns
BR
SDI
Serial Input Data Rate
SMPTE 259M, Level C
SDI, SDI
270
M
BPS
SMPTE 259M, Level D
360
SMPTE 344M
540
SMPTE 292M
1,483
SMPTE 292M
1,485
V
CM(SDI)
Common Mode Voltage
V
IN
= 125 mV
P-P
SDI, SDI
V
SSSI
+1.0V
V
DDSI
-0.05V
V
V
IN(SDI)
SDI Serial Input Voltage,
Single-ended
125
800
880
mV
P-P
V
IN(SDI)
SDI Serial Input Voltage,
Differential
125
800
880
mV
P-P
t
r
, t
f
Rise Time, Fall Time
20%80%, SMPTE 259M
Data Rates
0.4
1.0
1.5
ns
20%80%, SMPTE 292M
Data Rates
270
ps
LMH0031
www.national.com
5
PDF 
ZIP
