iqdec01 - AV-iQ
IQDEC01
Composite Decoder, Synchronizer, Audio Embedder with Noise
Reduction– 12 bit
The IQDEC01 provides a complete analog front-end with 12-bit composite decoding, synchronization and
analog audio ingest in one compact module. Advanced adaptive 2-D decoding technology makes the
IQDEC01 ideal for most analog to digital or, when paired with an upconverter, analog to HD applications. The
IQDEC01 handles most composite analog signal formats including PAL, NTSC and SECAM. The full frame
synchronizer with horizontal and vertical phasing controls allows the output to be timed to your house or
studio reference. In addition to its high quality video performance, the IQDEC01 can digitize up to 4 channels
of analog audio for both embedding into the SDI stream and outputting as two AES streams. Proc. amp
controls and a powerful built-in noise reducer complete the specification. Noise reduction is targeted at
preserving the original content while eliminating the objectionable artifacts of analog working, and the
algorithms are tuned to ensure optimum quality and lowest bit-rates if the signal is subsequently compressed.
Does this module suit your application?
• 12-bit multi-standard decoder with frame
synchronizer and analog audio embedder
• Adaptive line comb decoding
• Input standards – PAL*, NTSC*, NTSC-J,
N4.43, PAL60, PALN*, PALM* or SECAM*
• *Auto detection of input standards
• Minimal delay through the unit - < 7 lines (lock
to input, decoder and noise reducer in
minimum delay mode)
• Motion adaptive recursive noise reducer with
automatic noise floor measurement
• Horizontal and vertical enhancer
• VHS mode: Rugged sync and clock recovery
ensures reliable operation for VHS playback
and other noisy or unstable inputs
• Y/C and composite inputs available
• SECAM adaptive notch and chroma median
filters
• Selectable default output on loss of input Frame freeze, pattern or input pass
•
Selectable VBI pass through (pass flat or blank
for each VITS line)
• Adjustment of video gain, black level, chroma
gain, NTSC hue, horizontal Y/C timing and
picture position
• 4 x assignable 8 channel audio mixers
• Flexible audio delay features including tracking
delay to keep audio and video in perfect sync
• Full audio proc-amp including - gain, mute,
polarity invert, and channel routing
Why should you choose this module?
• A complete analog ingest solution for both
video and audio in a compact module making
system integration easy
• Proc. amp and noise reduction provides
complete signal conditioning solution in one
package for connecting operational areas
• 12-bit decoding technology means superior
picture quality with minimum MPEG bit usage
• With everything in one single unit, remote
control could not be simpler
VHS
Decode
composite/Y
Simple
Filter
12-bit A-D
converter
Adaptive
C
Spatial
Comb
Filter
Synchronizer
Noise
Reduction
Horizontal
and
Vertical
Enhance
Audio
Embed
and Ancillary
Writer
1
SDI TX
2
Proc. Amp
Outputs
Additional
Filters
12-bit A-D
converter
Proc. Amp
Analog to
Digital
Converter
Analog
Input Stage
Analog to
Digital
Converter
Analog
Input Stage
Analog to
Digital
Converter
Analog
Input Stage
Analog to
Digital
Converter
Tracking
Delay
Proc. Amp
Proc. Amp
Adjustable
Delay
AES TX
Proc. Amp
AES TX
1
Channel
Router
Adjustable
Delay
Assignable
Assignable
Audio
Assignable
Audio
Assignable
Mixers
Audio
Mixers
Audio
Mixers
Mixers
Adjustable
Delay
Proc. Amp
Built-in
intelligence
GPI control
and
TTL pulse I/O
2
1 X GPI
Analog
Input Stage
I/O
Inputs
Ref Loop
network intelligence, control and monitoring
Block diagram for IQDEC0118-2A shown
© 2006 Snell & Wilcox All rights reserved
www.snellwilcox.com
1
IQDEC01
Composite Decoder, Synchronizer, Audio Embedder with Noise
Reduction– 12 bit
Order codes for IQH3A enclosures
Order codes for other enclosures
SERIAL
OUT
ANALOG AUDIO IN / AES OUT
COMP
IN
IQDEC00/116-2
IQDEC0
0/115-1A
2
1
ANALOG AUDIO IN / AES OUT
IQDEC0115-1A 12 bit decoder with synchronizer, analog audio
embedder and noise reduction. single composite input, 2 SDI
outputs, 4 analog audio inputs, 2 AES outputs (balanced and
unbalanced on 25D)
2
COMP IN B/C
1
SERIAL OUT
COMP IN A/Y
IQDEC0116-2 12 bit decoder with synchronizer, analog
audio embedder and noise reduction. 2 composite, 1 Y/C
inputs, 2 SDI outputs, 4 analog audio inputs, 2 AES outputs
(balanced and unbalanced on 25D)
1
ANALOG AUDIO IN / AES OUT
IQDEC0
0/118-2A
2
2
1
AES OUT
B
SERIAL OUT
A
C
COMPOSITE
Y
IQDEC0118-2A 12 bit decoder with synchronizer, analog audio
embedder and noise reduction. 2 composite, 1 Y/C inputs, 2 SDI
outputs, 4 analog audio inputs, 2 AES outputs (balanced, on 25D,
and unbalanced on 25D and BNC)
For more details on enclosure types please refer to the Frames/Enclosures section
Inputs & Outputs
Signal Inputs
Signal Outputs
Composite Video ................. 2 via BNC connectors, isolated
Serial Digital ......................... 2 x SDI via BNC connectors
Y-C...................................... 1 via BNC connectors
Analog Audio ...................... 4 Channels (2 Stereo Pairs) via
25D connector
AES Audio ........................... 2 pairs (4 channels) balanced and
unbalanced via 25D and
unbalanced via BNC connectors
Standards............................ PAL/NTSC//NTSC-J/PAL-M
/PAL-N/SECAM/N4.43
Standards............................ SMPTE 259M-C–1997, SMPTE
272M-A-1994, AES3-1992
Reference............................ 1 analog loop through via BNC
connectors
Controls
Control Interface
GPI/O .................................. Closing contact input/output via
BNC connector
Card Edge Controls
None
Card Edge Indicators
CPU running/Power............. Flashing = OK
Analog Video Present .......... Lost = Off, Good = On (Green)
Analog Video Error .............. Good = Off, Error = On (Yellow)
Reference Present .............. Lost = Off, Good = On (Green)
Reference Error .................. Good = Off, Error = On (Yellow)
Functions Available via RollCall Only
Audio Controls
Line Up Tone Level.............. -24 dBu to +10 dBu in 0.5 dB
steps
Headroom ........................... +4 to +24 dB in 0.5 dB steps
(subject to a max input level of
+24 dBu)
Set Audio Monitor Thresholds
High and low levels, time delay
© 2006 Snell & Wilcox All rights reserved
External Input Audio Delay ... Up to 1.5 s additional delay in 1ms
steps
Input Side Control Proc........ Independent Gain, Mute, Polarity
& Mono control over analog input
channels
Digital Input Gain.................. ±18 dB
Analog Input Gain ................ ±34 dB (subject to Line up and
Headroom levels)
Channel Routing ................. Output channels routed from
analog pair 1, analog pair 2, test
tone and audio mixers
Channel Mixing .................... Mixer channels routed from analog
pair 1, analog pair 2 and test tone.
Output Side Control Proc..... Independent Gain, Mute, Polarity
& Mono control over embedded
and AES output channels.
Digital Output Gain...............±18 dB
Global Delay Offset .............. Up to +2.5 s in 1ms steps,
common to all processed audio.
Variable Audio Delay Control Source
Up to 1 s from RollTrack + GPI +
video synchronizer
www.snellwilcox.com
2
IQDEC01
Composite Decoder, Synchronizer, Audio Embedder with Noise
Reduction– 12 bit
Audio Level Slew Rate ......... Instant, fast, medium, slow
NTSC line 22, 283 and 285 Blank, pass as data, pass as
picture
Validity Bit............................ Clear or set
Tone Frequency, Amplitude & Ident
2-channel tone generator.
NTSC line 21 and 284
Tone Frequency .................. 100 Hz to 15 kHz in 100 Hz steps
PAL lines 7 to22 & 320 to 335
Blank, pass as VBI, decode VBI
Tone Channel Ident ............. 0.5 s interruption every 2 s
PAL line 23
Video Controls
Blank, pass as data, pass as
picture, pass as closed captions
Blank, pass as WSS, pass as
picture
Other Controls
Input Select ......................... Composite A / B, YC
Composite Input Standard... Auto [PAL, NTSC, PALM, PALN,
SECAM] / Manual [PAL, NTSC,
NTSC-J, PALM, PALN, SECAM,
N4.43]
Freeze ................................. Off / On
Pattern Enable ..................... Off / On
Pattern Select ...................... Black / EBU Color Bars / 100%
Color Bars / Ramp / Multi-Burst /
Pulse & Bar / Animated Bar
Caption Enable ................... Off / On
Caption Generator ............... Programmable up to 19
characters
Luma Gain........................... ±6 dB
Chroma Gain ....................... ±6 dB
Black Level .......................... ±120 mV
GPI Action ........................... Memories 1 to 8 / Pattern / Freeze
/ Audio delay
NTSC Hue........................... ±45°
GPI Polarity.......................... High / Low
Y/C Timing ......................... +592 ns in 148 ns steps
GPO Action ......................... Input loss / Standard / Video delay
Picture Position ................... ±592 ns in 148 ns steps
GPO Polarity........................ High / Low
Blanking .............................. Left, right, top, bottom, color
User Memories .................... Name, clear, save and recall 8
user memories
Noise Reducer Mode & Noise Measurement
Auto / Manual noise measurement
Normal / Minimum delay
Default Video Output............ Pass Video / Freeze / Pattern /
Pattern and Caption
Default Audio Output ........... Silence
Noise Threshold .................. Auto Bias [±7] / Manual [0 to 15]
Noise Reducer Strength ...... Luma [0 to 31], Chroma [0 to 31]
H Enhance .......................... Off / [On – low, medium, high]
Preset Unit........................... Returns all settings to default
Reporting * also Logged
Input Status ........................ *Input present, *Input line
standard, *Composite color
standard
H Enhance Frequency ......... 2.25 MHz or 3.375 MHz
V Enhance........................... Off / [On – low, medium, high]
Decoder Mode .................... Simple, Studio, VHS/Unstable
SECAM Notch ..................... Adaptive/Controllable
Input Error ........................... One or more inputs have
unselected line standard
SECAM Luma Bandwidth .... Wide/Medium/Narrow
Reference Status ................. *Ref present, *Ref standard
SECAM Bottles.................... Auto/On/Off
Reference Error.................... Standard different to selected
input
Color Killer........................... Chroma ON / Chroma OFF / Auto
[QAM standards: Chroma off =
chroma mute + Y notch
SECAM: Chroma off = chroma
mute only]
Genlock H Phase................. ± ½ line in 1 pixel steps
Genlock V Phase ................. ±262/312 lines in 1 line steps
Genlock Mode..................... Free-run / Lock to reference /
Lock to input (minimum delay)
Audio Bus Monitor ............... *Silence, *High Level, *Low Level,
*Overflow for processed audio
channels
Analog Audio Input Monitor . *Silence, *High Level, *Low Level,
*Overflow for analog audio input
channels
RollTrack Input
H Delay ............................... 1 line in 1 pixel steps
Delay ................................... Audio delay – Fixed, RollTrack +
Fixed, Internal Sync + Fixed
V Delay................................ 524/624 lines in 1 line steps
RollTrack Output
Additional Video Delay ......... 0, 1 or 2 frames of delay
Delay ................................... Current video / audio delay
NTSC lines 11 to 20 and 274 to 282
Blank, pass as VBI, decode VBI
Input State........................... Present / line standard
© 2006 Snell & Wilcox All rights reserved
Reference State ................... Present / error
www.snellwilcox.com
3
IQDEC01
Composite Decoder, Synchronizer, Audio Embedder with Noise
Reduction– 12 bit
Specifications
Video Specifications
<3 lines (Minimum Delay)
Video Internal Processing .... 4:2:2 with 10 bit data paths
Total Minimum Delay ........... <7 lines
Frequency Response (Studio Mode)
Y ......................................... 5.75 MHz ±0.1dB
Total Maximum Delay ......... >4 frames (including optional
video delay)
PbPr.................................... 1.5 MHz -3dB
Audio Specifications
Frequency Response (VHS Mode)
Y ......................................... 5 MHz +0.2 dB, -0.5 dB
PbPr.................................... 1.5MHz -3dB typ
Composite Input Return Loss
Better than 35 dB to 5 MHz
Composite level/impedance 1 V pk-pk typ. Into 75 Ohm
Input Impedance.................. >30 K Ohms, balanced, line to line
>15 K Ohms line to earth
(600 Ohm link selectable)
Max Input Level ................... +24 dBu, balanced
Frequency Response ........... +0.1/-0.25 dB, 20 Hz – 20 kHz
wrt 1 kHz
Output Overshoot................ < 70 mV
THD+N ................................ <-94 dB typical at –1 dBFS, 1
kHz, 22 Hz - 20 kHz, 'A'
weighted, unity gain
Output Return Loss ............. Better than 15 dB to 270 MHz
Sampling ............................. 24 bits @ 48 kHz,
Output Jitter ........................ < 0.2 UI (with 10 Hz High pass
filter selected on 601 monitor)
Dynamic Range ................... >100 dB wrt –1 dBFS, 20 Hz to
20 kHz, ‘A’ weighted
Reference Return Loss ........ Better than 35 dB to 5.8 MHz
CMMR ................................. >50 dB typical at 60 Hz
Reference Input Level .......... 1 Vp-p ± 3 dB
Cross Talk ........................... < -100 dB, 20-20 kHz, +24 dBu,
channel to channel
Serial Output Level .............. 800 mV ±5%
Sync Level........................... 0.3 V ± 6 dB into 10k Ohms
Delay through the unit
Decoder Delay..................... <2 lines
Channel Gain Mismatch....... < ±0.2 dB
Max Output Level ................ 0 dBFS
Synchronizer Delay .............. 16 µs (Lock to Input)
1 frame + 16 µs (Lock to
Reference)
Output Sampling.................. 48 kHz
Additional Processing Delay. <100 µs
Module Power Consumption13 W
Power Consumption
Noise Reducer Delay ........... <1 frame (Normal)
© 2006 Snell & Wilcox All rights reserved
www.snellwilcox.com
4
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising