04 | Keysight | M9336A I/Q Arbitrary Waveform Generator - Data Sheet
2) and individual channels can be adjusted with a resolution of
.001 ps. When used in I/Q applications, the channel-to-channel
delay can be used to compensate for modulator behavior which
can improve channel matching resulting in a better EVM of the
test signal. In addition, the third synchronized channel can be
used as a very accurate marker output or as a third signal such as
a synchronized envelope tracking signal.
Exceptional signal quality
The M9336A AWG provides exceptional signal quality which is
essential for reliable and repeatable measurements on today’s
advanced wireless designs. With 16-bit resolution, it generates
full bandwidth SFDR (without harmonics) of >67 dBc on
differential channels. Selectable amplitude flatness correction
can be used to achieve a DC to 540 MHz flatness of ±0.15 dB.
Corrected phase flatness is ±1 degree, also from DC to 540 MHz.
This results in an EVM as low as 75 m% RMS (20 MHz bandwidth
LTE-A signal).
Channel filtering and gain
The AWG has the capability to provide real-time correction
filtering on each of the three analog output channels. This
filter provides a flatter frequency response for each channel
over the entire channel bandwidth. The user can bypass this
filtering, if required. In addition to the digital correction filter,
the instrument provides a high performance reconstruction filter
on each channel that is tuned to the DAC sample rate. For the
real-time correction filter, the AWG uses a unique technique
to match the filter response to the user defined sample rate in
order to maximize the available signal level for the specific signal
bandwidth required. Each channel can be adjusted individually
using the digital or analog gain controls. This is required in
applications where each channel needs to be adjusted to meet
the test system’s requirements. Channel 3 also has an additional
analog amplifier for higher signal levels than channel 1 and 2. This
is provided for envelope tracking standards.
Individual channel capability
The AWG provides three scalar channels with SMB connections
and up to 540 MHz bandwidth. Each channel utilizes a high-res-
olution DAC and can drive both single-ended and balanced
designs. The I/Q channels (channels 1 and 2) are not amplified
and provide an output range of up to 2 Vp-p for differential
signals (1 Vp-p for single-ended). Common mode offsets ranging
from -0.3 to +0.8 V can be added to each channel. The third
channel does include an amplifier and its output range is 3.4 Vp-p
for differential signals (1.7 Vp-p for single-ended) with a common
mode offsets of ±1.2 V. All single-ended channels have a nominal
output impedance of 50 ohms (100 ohms differential).
Each channel has its own waveform sequencer and can operate
independently. The channels can also be synchronized with a
typical channel-to-channel alignment of <20 ps (channels 1 and
Figure 2. Generate complex, wide bandwidth signals with exceptional EVM performance.
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