Operations
Manual
PUC2
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2 Thank you
Table of content 3
Thank you
for purchasing the Yellowtec PUC
portable soundcard
The Yellowtec PUC² is a professional-quality USB soundcard for use
with MAC or Windows PCs. It is capable of recording high-resolution
audio at up to 192 kHz sample rate and 24 bit word-lenghts. The PUC
is designed after Yellowtec‘s standards of simple perfection. The idea
is to provide a high-quality soundcard with a plug n‘ play concept so
you can start using it right away. It provides a USB plug n‘ play option
for fast use plus the optional use of our ASIO driver for the advanced
operator.
Several versions of the PUC are available, offering different audio input
and output formats and connections. The AES-3 interface is common to
all versions. For more information go to www.yellowtec.com and
check out our products.
2
THANK YOU
3
TABLE OF CONTENT
4
Plug n Play
5
PUC² VERSIONs
10
LEA ENGINE
11
ADVANCED OPERATION
12
block diagrams
15
FIELD applications
19
ce & fcc declarations
Yellowtec has a policy of continually improving and updating it‘s
products. For firmware updates or dedicated software you should check
out our website from time to time. All updates will be free of charge.
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4 plug n‘ play
PUC² Front Panel 5
Ready, Set up, Go !
PUC² Front Panel *
So what‘s in the box? Your PUC comes with a USB Y-Cord to interconnect with
your PC or MAC.
AES 3 Input
AES 3 Output
AUX Output
The AES-3 input is the
default audio input to the
PUC². This input will override any other inputs when a
digital input carrier is detected and locked, even if there
is no active audio in the
digital stream. The audio signal is converted into a USB
format and available to any
audio recording application
on the computer.
The AES-3 output is
always active at the
sample rate selected
by the application
running the computer
The stereo 3.5mm jack
supplies an analogue audio signal for monitoring.
It can be used to drive a
set of headphones, although there is no control
of the AUX output level.
*Note that PUC Lite comes
without an AUX out.
ZLM Jack
Power Supply
RDY LED
In order to route the input
signal directly to the
output you can apply an
external contact closure.
This bypasses the OS kernel for true Zero Latency
Monitoring.
5V DC power supply
adapter
Green indicates proper
connection and working. Red indicates the
activation process when
you connect PUC² to the
computer
Simply interconnect PUC with your computer ( Mac / Windows/Linux ) using
the USB Y-Cord. Make sure both USB A-Plugs (yellow and black) are connected
to your PC. The yellow connector carries no data but will be needed to secure
sufficient power supply.
When connecting the PUC for the first time to your PC or Mac your system will
perform an automatic USB device installation. Your device will be identified
as YELLOWTEC PUC. (For using PUC with high-res audio (192KHz) you need to
install the ASIO driver suite for windows from www.yellowtec.com)
The green Rdy LED will indicate a proper connection.
You can now use PUC in native mode.
Host
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ZLM LED
Red indicates „Zero
Latency Monitoring“
(See advanced operations)
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6 PUC²
PUC² MIC 7
PUC² Back Panel
PUC² MIC LEA Back Panel
XLR Input*
XLR output*
XLR Mic Input
Platzhalter
Headphone Out
The backside of the PUC
features the Analogue
Balanced Inputs. The
analogue input will be disregarded when an AES-3
input signal is present and
locked.
Analogue Balanced Output. This output is always
active. Confirm that the
correct digital headroom
values are being used.
(see advanced operations)
The rear of the
PUC features the
Analogue Balanced Microphone
Inputs. The analogue input will be
disregarded when
an AES-3 input
signal is present
and locked.
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*PUC² comes in two different version. One for
german levels and one for international levels.
Output @ FS
Headroom
Rated Ouput
German
+15 dBU
-9 dB FS
+6 dBU
International
+18 dBU
-14 dB FS
+4 dBU
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Volume Control
The PUC features
volume control
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8 PUC² Lite
PUC² Multipin 9
PUC² Lite Back Panel
PUC² Multipin Back Panel
13
1
25
14
D-Typ connector Pin Layout
PUC² Lite
The PUC Lite has all
the features of the
PUC² family except
for analogue ports or
AUX output. For users
who don‘t need these
options this is the
perfect compromise.
Digital Audio Input
Standard: s/PDIF
Signal
Shield
Optional AES/EBU Signal+
SignalShield
Digital Audio Ouput
Standard: S/PDIF
Signal
Shield
Optional: AES/EBU Signal+
SignalShield
Sub-D
Pin 14
Pin 2
Pin 14
Pin 2
Pin 15
Sub-D
Pin 3
Pin 16
Pin 3
Pin 16
Pin 15
GPI
ZLM
BYPASS
INT LVL
Sub-D
Pin 18
Pin 17
Pin 5
Zero Latency Mon.
Dig. Bypass
International Level
AUX Power Out
digital +5V/max.40mA
digital 0V
analog +15V/max.10mA
analog -15V/max.10mA
analog OV
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Sub-D
Pin 6
Pin 19
Pin 20
Pin 7
Pin 8
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D-Typ
The backside of the PUC features
an analogue D-Typ pin connector.
It features the same pin-out as the
PUC Classic.
Analog Audio Input
Left Channel
Signal+
SignalShield
Right Channel
Signal+
SignalShield
Analog Audio Ouput
Left Channel
Signal+
SignalShield
Right Channel
Signal+
SignalShield
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Sub-D
Pin 25
Pin 13
Pin 12
Pin 24
Pin 11
Pin 12
Sub-D
Pin 9
Pin 21
Pin 22
Pin 10
Pin 23
Pin 22
10 LEA
Advanced Operation 11
Level Engine Automation (LEA)
PUC² advanced operation (Zero Latency Monitoring)
The LEA Engine is a unique technology for levelling your interviews while recording. In comparison to standart AGC`s and Limiters the LEA engine knows to
excel by not creating artefacts or common pumping noises. Even with blanking
levels or loud ambient noise the LEA Engine works perfectly and levels smoothly, just like an engineer inside your mic. The Engine also uses limiters to avoid
sudden lash outs and levels smoothly within (common volumes levels). It also
perfectly avoids raising noise floors during mute seconds of an interview.
PUC² has a special feature which allows the user to monitor it‘s input signal
directly at all of it‘s outputs simultaneously. This bypasses the USB conversion
and computer, offering very low unput to output times, typically less than 5ms,
even at low sample rates. This can be turned on by closing the tip sand sleeve
(ground) contacts on the 3.5mm sterei ZLM siwtch jack on the unit. The USV
sound output of the computer ist mioxed into the input signal, and by default,
both sign als are dimmed (reduced in level) by 6dB to avoid overloading the
output stages. This automiatic level adjustment can be over-ridden by connecting the ring and sleeve (ground) contact on the ZLM switch jack, or by using a
mono 3.5mm jack (or dummy plug) to switch on ZLM mode.
The user himself doesn‘t need to bother with setups. All he has to do is start a
recording. The LEA Engine provides the freedom to solemnly concentrate on
the interview while guaranteeing to process your recording in the highest possible quality. *For the LEA software manual visit yellowtec.com/lea/download
voice
background noise voice
TIP
RING
GND
background noise
switch TIP
ZLM Jack Tip
(ZLM enable)
original
signal
switch RING
ZLM Jack Ring
(ZLM level)
Audio signal at all
outputs
Computer Audio output from
USB only
Computer Audio output from
USB at -6dB and input at -6dB
mixed
closed
common
AGC
closed
closed
Computer Audio output from
USB at 0dB and input at 0B
mixed
closed
Computer Audio output from
USB only
LEA
Engine
Bypasses windows internal kernels offering lower latency (delay) and bit
identical transfer between the software application and the sound card‘s audio
converters. It is NOT available with all version of the PUC² family.
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12 Block Diagram PUC
Block Diagram PUC LEA 13
The Block Diagram will give you a detailed overview of the internals of our
PUC² system.
The PUC LEA Block Diagram will give you a detailed overview of the internals
of our PUC LEA in PC/USB Mode
USB
USB
Auto
ZLM
monitor
mix
Auto
Analog/
Digital
Converter
Left
Right
Analogue Inputs
AES3/SPDIF
Left
Digital In
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Right
Analogue OutputsD
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LEA Engine
Level Enhanced
Automation
AES3
Output
Decoder
Digital/
Analog
Converter
AES3
Input
Decoder
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AES3
igital Out
AES3
Input
Decoder
Headphone
AES3/SPDIF
AUX Out
Digital In
AES3
Output
Decoder
A/D
Conv
A/D
Conv
DAC
1
2
H/P Out
Mic Inputs
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DAC
Speaker Out
Analog OutputsD
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AES3
igital Out
14 Block Diagram PUC LEA
Field Applications 15
The Block Diagram of the PUC LEA in Stand Alone (non USB) mode will give
you a detailed overview of the internals of our PUC² system. *Please not that
Digital In and Digital Out switched places.
PUC² in use!
The PUC² is a versatile external USB soundcard which can be used for many
different applications. In order to show and tell you some of the most common
ways to use the PUC² we illustrated a couple of field applications.
Lautsprecheranbindung
monitor
mix
LEA Engine
Level Enhanced
Automation
AES3
Output
Decoder
AES3/SPDIF
Digital Out
AES3
Input
Decoder
A/D
Conv
A/D
Conv
DAC
1
2
H/P Out
Mischpultanbindung Analog
Mic Inputs
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DAC
Speaker Out
Analog OutputsD
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AES3
igital In
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16 Field Applications
Field Applications 17
Mischpultanbindung digital
PUC LEA
The PUC LEA is an excpetional ..... platzhaltertext
Pc / Usb Mode
Lautsprecheranbindung und Zuspieler
Standalone Mode (non USB)
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18
CE & FCC declarations
CE & FCC declarations 19
EC Declaration of Conformity according
EC Directive 2004/108/EC (EMC - Directive)
We, Thum+Mahr GmbH, Heinrich Hertz Str. 1-3, D-40789 Monheim, Germany
herewith declare in sole responsibility that the product
PUC 2
USB powered Soundcard
observes the essential protection and safety related requirements determined in the council
directive for the adoptions of the legal regulations of the Member States about the electromagnet compability
(2004/108/EC).
The judgement of the product as to electromagnetic compability was effected on the basis of the following EC
harmonised standarts:
EMI EN 55022:2006, Class B
EN 55103-1:1996
EMS EN 55024:1998 +A1:2001 + A2:2003
EN 55103-2:1996
The declaration applies to all specimen manufactured according to the sample tested.
The last two digit of the year of affixing the CE marking is „09“
Address of EC responsible
Reinhard Gallos, Heinrich-Hertz Str. 1-3, D-40789 Monheim, Germany
Date and Countersign of EC represantative
10-07-2009, Hanno Mahr, CEO
FCC Declaration of Conformity
This device complies with Part 15 Subpart B of the FCC rules.
ANSI C63.4-2003 in execution to the FCC regulations, rules and limits of FCC 47
CFR §15.101 and §15.109. Operation is subject to the following two conditions:
1. This device may not cause harmful interference
2. This device must accept any interference received, including interference that may cause undesired operation.
Manufacturer:
Thum+Mahr GmbH
Heinrich Herz Str. 1-3
D-40789 Monheim
Germany
Contact Person:
Reinhard Gallos, Product Manager
Phone: +49 2173 967 323
Fax: +49 2173 967 400
e-mail: rgallos@yellowtec.com
Model Name:
PUC 2
Type of Equipment:
USB Powered Soundcard
Classification:
Class B digital device
We hereby declare that the equipment bearing the model name specified above was tested conforming to the applicable FCC rules under the most
accurate measurement standards possible, and that the necessary steps have been taken and are in force to ensure that production units of the
same equipment will continue to comply with the Commission‘s requirements.
Manufacturer‘s Signature: July 2009, Reinhard Gallos, Product Manager
Responsible Party‘s Signature: July 2009, Hanno Mahr, CEO Thum+Mahr GmbH
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