WEISS GAMBIT ADC2 User manual

digital audio
weiss engineering ltd.
Florastrasse 42, 8610 Uster, Switzerland
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 http://www.weiss. h / http://www.weiss-highend. om
GAMBIT
ADC2
OPERATING MANUAL
Software Version: 3.0

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER INTRODUCTION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 2 of 2
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INTRODUCTION
Congratulations on purchasing the Weiss Gambit Series ADC2 A/D Converter !
The ADC2 is a two hannel A/D onverter de-
signed for most demanding audio appli ations. It
uses state of the art A/D hips in Weiss Engineer-
ing’s proven “ orrelation te hnique” onfigura-
tion, whi h lowers onverter imperfe tions and
improves the SNR ratio.
For best noise reje tion, the analogue input signal
is kept balan ed from the input onne tors up to
the onverter hips. A high quality mi rophone
preamp is available as a standard feature.
Additionally, there is a built-in digital two-
segment ompressor / limiter for optimal level-
ling, employing adaptive release timing, look-
ahead ir uitry and side hain-oversampling for
mastering-quality dynami s pro essing.
Large bar graphs, a well thought-out push button
array and un luttered rotary knobs optimize han-
dling ergonomi s.
Summary of ADC2 features:
Inputs
• Two balan ed LINE and two MIC inputs on
separate XLR onne tors.
• MIC input with swit hable phantom power.
• Input sensitivity is settable in ea h hannel
independently (or ganged) with two rotary
en oders.
• Line Input sensitivity: -16dBu to +26 dBu.
• Mi Input sensitivity: -54dBu to +6dBu.
• Separate AES/EBU input on XLR for syn hro-
nization and/or audio input to the DSP, whi h
allows for use of the ADC2 for redithering
and limiting of digital signals.
Synchronization
• Internal syn sele table 44.1kHz, 48kHz,
88.2kHz, 96kHz, 176.4kHz, 192kHz.
• External syn from Wordsyn Input (BNC) or
from AES/EBU input.
• Wordsyn output on a BNC onne tor.
Metering
• One input / output level bargraph per hannel
with short peak hold
• One gain redu tion bargraph per hannel.
• Two over LEDs
• Two numeri al displays for peak hold and
level settings.
• Referen e for level setting an be altered
Outputs
• AES/EBU on XLR in one or two wire format
• S/PDIF on RCA
• Firewire (to be implemented).
DSP
• POW-R dithering to 16 bits, settable to three
different algorithms a ording to the POW-R
standard.
• SNR enhan ement.
• Level bar graph meter.
• Two segment ompressor / peak limiter
• Double-pre ision 40bit floating-point
pro essing

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 3 of 3
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OPERATION
ADC2 Block Diagram
Fig. 1 ADC2 Block Diagram Schematic
Input Control Panel
This se tion des ribes how to use the input on-
trol panel (see Fig. 2).
Fig. 2 ADC2 Input Control Panel
Ganged
For stereo use, press the “ganged” key. This lo ks
together hannel 1 and hannel 2 gain and thresh-
old ontrols. Additionally, if “ganged” is a tive,
a tive, the ompressor / limiter links
1
the
side hains of the two hannels. Typi al appli a-
tions for “ganged” mode are
• stereo (left/right) re ordings with two mi ro-
phones
• stereo insert limiting (during mixdown or
mastering).
If “ganged” is not a tive, hannel 1 and hannel 2
settings are independent and the ompressor /
limiter works unlinked. Thus the ADC2 an also
be used in a studio re ording / mixing environ-
ment as dual hannel outboard ompressor / lim-
iter.
A 3.3ms delay is used by the limiter for preview.
1
“side hain linking ” means that the same gain redu tion is applied
to both hannels to avoid orrupting the stereo balan e.

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 4 of 4
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Digital In
Pressing the “digtial in” key a tivates the digital
AES/EBU XLR input, the key lights red if a tive.
As soon as a valid signal is present, the sampling
rate is displayed with the sampling rate keys (see
Fig. 6).
If the digital input stage does not lo k to any sig-
nal, none of the sampling rate keys are lit.
If the “digital in” key is not lit, the analogue inputs
are sele ted. To a tivate the mi rophone input
for either hannel, press the appropriate “mic”
key (if “ganged” is a tive, pressing one “mic” key
will sele t mi rophone inputs for both hannels).
Press “+48 ” if phantom power is needed.
It is usually advisable to use “low-cut” when re-
ording with mi rophones. If “low-cut” is lit, low
frequen y ontent (traffi rumble, building trem-
ors, air- ondition hum and other low-frequen y
air movement like doors opening or losing near
the mi rophone et .) is filtered out.
Peak old
If “peak hold” is lit, the numeri display shows the
peak hold value (in dBFS) whi h is sele ted by the
gain key: “input gain” sele ts the input peak hold,
“output gain” sele ts the output peak hold
(“threshold” also sele ts output peak hold). See
Fig. 1 for positioning of input and output peak
hold in the pro essing hain.
If input peak hold is sele ted, values equal to or
above 0.0dBFS are indi ated by “>=0”. The
output peak hold however an measure values
above 0.0dBFS be ause of the internal floating-
point data format used in the digital signal pro -
essor. This is very useful to set the output gain.
To clear the peak hold value, double-click
the “peak hold” key!
Double- li k resets both input and output peak
hold.
Input Gain
If “input gain” is lit, the rotary knobs ontrol the
analogue input sensitivity. This is adjusted in 1dB
steps via a relais ontrolled attenuator. The se-
le ted value is shown in the numeri display.
The level bargraph is swit hed between input and
output in the same manner as the peak hold.
Thus, if the “input gain” key is lit, the bargraph
displays the input peak meter. If the “output gain”
key is lit, the bargraph displays the ouput peak
meter (settings an be different if “ganged” is not
lit).
Refer to Fig. 1 on p. 3 for positioning of input and
output peak meter in the pro essing hain.
Note: The referen e for the input sensitivity
display an be hosen by the user. For that pur-
pose press and hold the “ganged” key and then
swit h the ADC2 on. After a few se onds release
the ganged key. Wait for a few more se onds.
Now you an sele t the referen e with the
righthand knob. This allows to set the referen e
to e.g. +4dBu. Fa tory setting is 0 dBu referen e.
When finished press the blinking “peak hold” key.
The setting is retained in non-volatile memory.
Output Gain
If “output gain” is lit, the rotary knobs ontrol the
digital output gain. This gain an be used for op-
timal gain adjustment and to drive the peak lim-
iter (see below).
The gain ranges from -∞ (off) to +18.0 dB, the
resolution is optimized for fine ontrol around 0.0
dB while still allowing omplete fade-out. A spe-
ial algorithm is used for li k-free gain transis-
sions (no “zipper” noise).

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
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Threshold
If “threshold” is lit, the rotary knobs ontrol the
threshold of the ompressor se tion. The value is
shown in the numeri display. If “peak hold” is
a tive, the output peak value is displayed.
The ADC2 has a two-segment dynami s om-
pressor. The threshold an only be adjusted for
the ompressor se tion, whi h has a fixed ratio of
2:1.
The limiter has a fixed ratio of ∞:1 with a fixed
threshold of 0.0 dBFS.
Because the signal before the output gain
never exceeds 0.0dBFS, the limiter is inac-
tive if the output gain is £
££
£ 0.0dB.
If the threshold is set to 0.0 and the output gain is
below 0.0 the dynami s se tion is ina tive. This
setup is shown in the input vs. output graph in
Fig. 3.
Fig. 3 Compressor with 0.0dB Threshold
To a tivate the limiter, set the output gain to a
positive value. The boost will drive the signal into
the limiter. The gain redu tion applied by the
limiter is visible on the yellow bargraphs.
To soften the transmission from linear to limiter
segment, the ompressor an be a tivated by
adjusting the threshold parameter. Fig. 4 shows a
setting with a threshold of –3 dBFS, Fig. 5 shows
–6 dBFS. The range of possible threshold values is
listed on p. 13.
Fig. 4 Compressor with -3.0dB Threshold
Fig. 5 Compressor with -6.0dB Threshold
The overall gain redu tion applied by the om-
pressor / limiter is shown in the yellow bargraph.
Note that the ompressor uses auto gain make-
up: depending on the threshold, a gain is added
after the ompressor to ensure that 0.0 dBFS
input results in 0.0 dBFS output (graphi ally
speaking, auto gain make-up “fixes” the transfer
urve at the (0.0, 0.0) point).
0.0
-6.0
-12.0
+6.0
0.0
-6.0
-12.0
0.0
-6.0
-12.0
+6.0
0.0
-6.0
-12.0
0.0
-6.0
-12.0
+6.0
0.0
-6.0
-12.0

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
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Sync and Dither Control Panel
Fig. 6 ADC2 Sync and Dither Control Panel
Output Frequency
If the analogue inputs are sele ted (“digital in” is
not lit), the A/D sampling frequen y an be set in
the syn sour e blo k:
Sampling Fre-
quency
44.1 / 48 k z
key
fs x 2 / fs x 4
key
44.1 kHz 44.1 kHz none
48.0 kHz 48 kHz none
88.2 kHz 44.1 kHz sf x 2
96.0 kHz 48 kHz sf x 2
176.4 kHz 44.1 kHz sf x 4
192.0 kHz 48 kHz sf x 4
Table 1 Samplig Frequency Selection
If “digital in” is lit, the sampling frequen y keys
display the sampling frequen y of the AES/EBU
input signal in the same fashion as is shown in
Table 1.
Sync Source
As an be seen in Fig. 1, the ADC2 an be syn-
hronized externally by other digital devi es. It
has two external syn inputs. External syn is only
available for analogue inputs, ie “digital in” key is
not lit.
If “AES” is lit, the AES/EBU signal at the “DI 1 /
SYNC” input is used for syn hronization. If “BNC”
is lit, the word lo k signal onne ted to
“WORDSYNC in” is used for syn hronization.
Both syn inputs have a loop-through ouput to
syn ronize other devi es.
If none of these two keys are lit, the ADC2 uses
internal syn .
POW-r Dither
To requantize the input signal from 24bit to 16bit
format, a spe ial te hnique is used to avoid dis-
tortion, alled dithering. Many dithering s hemes
are available today, both professional and home-
brewed. The ADC2 uses the POW-r s heme,
whi h is widely regarded as one of the best, if not
the best
2
, and is used in a variety of digital equip-
ment.
The POW-r s heme offers three different presets
whi h an be sele ted with the dither keys “pow-r
1”, “pow-r 2” and “pow-r 3”. The hoi e should be
based on listening tests and preferen e of the
re ording engineer.
Dithering is in “auto black”
3
mode: if digital
zero is detected at the ouput, dithering is
switched off. This ensures that programme
breaks are not filled with dither noise.
“Auto bla k” mode is not available for analogue
input signals!
Also note the effe t of the “DITHER MODE” dip
swit h setting in Fig. 1 ADC2 Blo k Diagram
S hemati . If the dip swit h is in the down posi-
tion, requantisation to 16 bit and dithering is only
applied to the S/PDIF RCA output, whereas the
AES/EBU XLR output still arries all 24bits. This
mode is useful for live re ording to a 24bit devi e
with simultaneous ba kup to a 16bit devi e (like
DAT or CD-R). If the dip swit h is in the up posi-
tion, all digital outputs are dithered to 16bits.
2
For press reviews of POW-r visit
www.weiss. h/whatpresssays.html
3
The term “bla k” omes from digital image formats, where bla k is
represented by the value zero.

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 7 of 7
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Why dither?
If the 24bit digital signal is not dithered when re-
ording to 16bit media (e.g. DAT, CD-R et ), it is
trun ated instead, whi h leads to quantization
distortion (similar to lipping distortion). Fig. 7
shows a 24bit sine wave at –85dBFS trun ated to
16bit.
Fig. 7 1kHz Sine wave truncated to 16bit
If the same sine wave is dithered instead of quan-
tized, the quantization distortion disappears and
is repla ed by wide band shaped noise, whi h is
more pleasing to the human ear (Fig. 8).
Fig. 8 1kHz sine wave dithered to 16bit
To view the frequen y hara teristi s of the three
POW-r algorithms, refer to POW-R Noise
Spe trum on p. 14.
For more information on dithering in general,
view the arti le “The Se rets of Dither” at
www.digido. om .
For more POW-r information, please visit
www.weiss. h/pow-r/pow-r.html .

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
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Dip Switches
Fig. 9 Dip switches at the rear of the ADC2
DIP swit h summary:
Switch
up down
1 2 wire on XLR out-
puts
single wire on XLR
outputs (both arry
the same signal)
2 dither setting affe ts
all outputs
dither setting affe ts
only RCA output
3 WSYNC input on
BNC NOT termi-
nated
WSYNC input on
BNC terminated
4 AES/EBU input
NOT terminated
AES/EBU input termi-
nated
AES OUT 2 WIRE
If this swit h is in the up position, the ADC2 out-
puts a two-wire signal. Refer to Table 2 and Table
3 to look up exa t output onfigurations depend-
ing on this dip swit h.
Sampling
Freq.
DO1
(XLR 1)
DO2
(XLR 2)
DO3
(RCA)
44.1 kHz 44.1 kHz
single wire
44.1kHz
single wire
44.1 kHz
single wire
48 kHz 48 kHz
single wire
48 kHz
single wire
48 kHz
single wire
88.2 kHz 44.1 kHz
left hannel
44.1 kHz
right hannel
muted
96 kHz 48 kHz
left hannel
48 kHz
right hannel
muted
176.4 kHz 88.2 kHz
left hannel
88.2 kHz
right hannel
muted
192 kHz 96 kHz
left hannel
96 kHz
right hannel
muted
Table 2 AES OUT 2 WIRE switch in up position
Sampling
Freq.
DO1
(XLR 1)
DO2
(XLR 2)
DO3
(RCA)
44.1 kHz 44.1 kHz
single wire
44.1kHz
single wire
44.1 kHz
single wire
48 kHz 48 kHz
single wire
48 kHz
single wire
48 kHz
single wire
88.2 kHz 88.2 kHz
single wire
88.2 kHz
single wire
88.2 kHz
single wire
96 kHz 96 kHz
single wire
96 kHz single
wire
96 kHz
single wire
176.4 kHz 176.4 kHz
single wire
176.4 kHz
single wire
176.4 kHz
single wire
192 kHz 192 kHz
single wire
192 kHz
single wire
192 kHz
single wire
Table 3 AES OUT 2 WIRE switch in down position
1: AES OUT 2 WIRE
2: DITHER MODE 3: WSYNC TERM. 4: AES IN TERM.

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER OPERATION
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DIT ER MODE
This swit h determines how dither is applied to
XLR and RCA outputs. Refer to hapter POW-r
Dither on p. 6 for further information.
WSYNC TERM.
If the “WORDSYNC in” is not onne ted to an-
other devi e (via a T- onne tor), this dip swit h
must be in the down position, in whi h ase the
signal is properly terminated.
If another unit is onne ted to the “WORDSYNC
in”, this dip swit h must be in the up position.
Regardless of input syn hronization type, the
“WORDSYNC out” always arries the word syn
used by the ADC2.
AES IN TERM.
If the loop-through output of the “DI 1 / SYNC”
input is not onne ted to another devi e, this dip
swit h must be in the down position, in whi h
ase the line is properly terminated.
If another unit is onne ted, this dip swit h must
be in the up position.

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER TEC NICAL DATA
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TEC NICAL DATA
Analogue Line Inputs
2 hannels, symmetri al, not earth free, on two XLR female onne tors, pin 2 hot.
Input Impedan e > 5kOhm
Analogue Microphone Inputs
2 hannels, symmetri al, not earth free, on two XLR female onne tors, pin 2 hot.
Input Impedan e > 5kOhm
48V phantom power swit hable
AES/EBU Input
Input fs range: 44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
All sampling frequen ies must lie within +- 100ppm of the nominal sampling frequen y.
Maximum Input Wordlength: 24 Bits
Conne tor: XLR female
Impedan e: 110 Ohm
AES/EBU Output
Output fs range: 44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
Maximum Output Wordlength: 24 Bits
Channel Status Data: Professional format
Conne tor: two times XLR male
Impedan e: 110 Ohm
Format: single wire or double wire for fs higher than 48kHz
(swit h sele table)

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER TEC NICAL DATA
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S/PDIF Output
Output fs range: 44.1kHz
48.0kHz
88.2kHz
96.0kHz
176.4kHz
192.0kHz
Maximum Output Wordlength: 24 Bits
Channel Status Data: Professional format
Conne tor: RCA female
Impedan e: 75 Ohm
WORDSYNC I/O
Input Conne tor: BNC female
Input Impedan e: 75 Ohm
Input Level: TTL
Output Conne tor: BNC female
Output Impedan e: 4.7 Ohm
Output Level: TTL
Firewire
Not implemented in software versions 1.0 – 3.0
Power
Mains Voltage: 110 / 220 Volts with voltage sele tor
Fuse rating: 0.63A slow blow
Power Consumption: 60VA max.

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Low cut frequency response:
1st order highpass, 3dB point at 40Hz
Frequency Response:
@ fs = 44.1kHz: 20Hz ... > 20kHz +- 0.3dB
@ fs = 48.0kHz: 20Hz ... > 20kHz +- 0.3dB
@ fs = 88.2kHz: 20Hz ... > 30kHz +- 0.3dB
@ fs = 96.0kHz: 20Hz ... > 30kHz +- 0.3dB
@ fs = 176.4kHz: 20Hz ... > 40kHz +- 0.3dB
@ fs = 192.0kHz: 20Hz ... > 40kHz +- 0.3dB
T D+N @ 1k z:
less than -103 dBFS @ -3 dBFs output level, unweighted
SNR @ -40dBFS input:
> 110dB unweighted
Linearity:
t.b.d.
Crosstalk:
< -120dB, 0..20kHz
CMRR:
> 90dB @ 1kHz
> 80dB @ 20kHz
> 60dB @ 20Hz
Interchannel phase tracking:
Better than +- 0.3°, 20Hz to 20kHz
All measurements taken at the least sensitive setting of the input attenuators, i.e. +26dBu sensitivity for line
and +6dBu sensitivity for mi inputs. (= sensitivity for 0dBFS output level).

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Parameter Tables
Analogue Gain Line Input [dB]:
-26.0, -25.0, -24.0, -23.0, et . in 1dB steps to +16.0
(example: with a gain setting of -26.0, a +26dBu input signal generates a 0dBFS output)
Analogue Gain Mic Input [dB]:
-6.0, -5.0, -4.0, et . in 1 dB steps to +54.0
(example: with a gain setting of -6.0, a +6dBu input signal generates a 0dBFS output)
Digital Output Gain [dB]:
-100.0 , -92.0 , -89.0 , -86.0 , -83.0 , -80.0 , -77.0 , -74.0 , -71.0 , -68.0 , -65.0 , -62.0 , -59.0 , -56.0 , -53.0 , -
50.0 , -48.0 , -46.0 , -44.0 , -42.0 , -40.0 , -39.0 , -38.0 , -37.0 , -36.0 , -35.0 , -34.0 , -33.0 , -32.0 , -30.0 , -
29.5 , -29.0 , -28.5 , -28.0 , -27.5 , -27.0 , -26.5 , -26.0 , -25.5 , -25.0 , -24.5 , -24.0 , -23.5 , -23.0 , -22.5 , -
22.0 , -21.5 , -21.0 , -20.5 , -20.0 , -19.5 , -19.0 , -18.5 , -18.0 , -17.5 , -17.0 , -16.5 , -16.0 , -15.5 , -15.0 , -
14.5 , -14.0 , -13.5 , -13.0 , -12.5 , -12.0 , -11.5 , -11.0 , -10.5 , -10.0 , -9.5 , -9.0 , -8.5 , -8.0 , -7.5 , -7.0 , -
6.5, -6.0 , -5.8 , -5.6 , -5.4 , -5.2 , -5.0 , -4.8 , -4.6 , -4.4 , -4.2 , -4.0 , -3.8 , -3.6 , -3.4 , -3.2 , -3.0 , -2.8 , -2.6 ,
-2.4 , -2.2 , -2.0 , -1.8 , -1.6 , -1.4 , -1.2 , -1.0 , -0.8 , -0.6 , -0.4 , -0.2 , 0.0 , 0.2 , 0.4 , 0.6 , 0.8 , 1.0 , 1.2 , 1.4,
1.6 , 1.8 , 2.0 , 2.2 , 2.4 , 2.6 , 2.8 , 3.0 , 3.2 , 3.4 , 3.6 , 3.8 , 4.0 , 4.2 , 4.4 , 4.6 , 4.8 , 5.0 , 5.2 , 5.4, 5.6, 5.8 ,
6.0 , 6.2 , 6.4 , 6.6 , 6.8 , 7.0 , 7.2 , 7.4 , 7.6 , 7.8 , 8.0 , 8.2 , 8.4 , 8.6 , 8.8 , 9.0 , 9.2 , 9.4 , 9.6 , 9.8 , 10.0 ,
10.2 , 10.4 , 10.6 , 10.8 , 11.0 , 11.2 , 11.4 , 11.6 , 11.8 , 12.0 , 12.2 , 12.4 , 12.6 , 12.8 , 13.0 , 13.2 , 13.4 ,
13.6 , 13.8 , 14.0 , 14.2 , 14.4 , 14.6 , 14.8 , 15.0 , 15.2 , 15.4 , 15.6 , 15.8 , 16.0 , 16.2 , 16.4 , 16.6 , 16.8 ,
17.0 , 17.2 , 17.4 , 17.6 , 17.8 , 18.0
Compressor Threshold [dBFS]:
-25.0 , -24.8 , -24.6 , -24.4 , -24.2 , -24.0 , -23.8 , -23.6 , -23.4 , -23.2 , -23.0 , -22.8 , -22.6 , -22.4 , -22.2 , -
22.0 , -21.8 , -21.6 , -21.4 , -21.2 , -21.0 , -20.8 , -20.6 , -20.4 , -20.2 , -20.0 , -19.8 , -19.6 , -19.4 , -19.2 , -
19.0 , -18.8 , -18.6 , -18.4 , -18.2 , -18.0 , -17.8 , -17.6 , -17.4 , -17.2 , -17.0 , -16.8 , -16.6 , -16.4 , -16.2 , -
16.0 , -15.8 , -15.6 , -15.4 , -15.2 , -15.0 , -14.8 , -14.6 , -14.4 , -14.2 , -14.0 , -13.8 , -13.6 , -13.4 , -13.2 , -
13.0 , -12.8 , -12.6 , -12.4 , -12.2 , -12.0 , -11.8 , -11.6 , -11.4 , -11.2 , -11.0 , -10.8 , -10.6 , -10.4 , -10.2 , -
10.0 , -9.8 , -9.6 , -9.4 , -9.2 , -9.0 , -8.8 , -8.6 , -8.4 , -8.2 , -8.0 , -7.8 , -7.6 , -7.4 , -7.2 , -7.0 , -6.8 , -6.6 , -
6.4 , -6.2 , -6.0 , -5.8 , -5.6 , -5.4 , -5.2 , -5.0 , -4.8 , -4.6 , -4.4 , -4.2 , -4.0 , -3.8 , -3.6 , -3.4 , -3.2 , -3.0, -2.8 ,
-2.6 , -2.4 , -2.2 , -2.0 , -1.8 , -1.6 , -1.4 , -1.2 , -1.0 , -0.8 , -0.6 , -0.4 , -0.2 , 0.0
Sampling Rate [k z]:
44.1, 48.0, 88.2, 96.0, 176.4, 192.0

OPERATING INSTRUCTIONS FOR GAMBIT ADC2 24Bit / 192k z A/D CONVERTER TEC NICAL DATA
Daniel Weiss Engineering Ltd., Florastr. 42, CH-8610 Uster Page 14 of 14
 [phone]  [phone]  http://www.weiss. h weiss@weiss. h
POW-R Noise Spectrum
Fig. 10 shows the noise spe trum of the three POW-R algorithms at 44.1 and 88.2 kHz.
Fig. 10 Output spectrum with 80dBFS / 1kHz sine wave, dithered to 16 Bits, using the three POW-R algorithms at 44.1kHz and 88.2kHz
respectively