Atec Agilent-E4421B-24B-32B-33B-35B-36B - Manual (Page 16)

16
Dual arbitrary waveform
generator
(Option UND, ESG-DP and ESG-D series only)
Number of channels 2
Resolution 14 bits (1/16384)
Waveform memory
Length (playback) 1 Megasample/channel
Length (storage) 1 Megasample/channel in
non-volatile RAM
Waveform segments
Segment length 16 samples to 1 Megasample
Number of segments 1 to 128 (even number of
samples)
Waveform sequences
Sequencing Continuously repeating
Number of sequences 1 to 128
Segments/sequence 1 to 65,535
Segment repetitions 1 to 4,095
Clock
Sample rate 1 Hz to 40 MHz
Resolution 1 Hz
Accuracy Same as timebase
Output reconstruction filters
Type Elliptic
Frequency cutoff (nominal, 3 dB)
250 kHz, 2.5 MHz, 8 MHz,
and through (user-supplied
external filter)
Baseband spectral purity
(typical, full scale sinewave, >20 x oversampling)
Harmonic distortion
≤100 kHz <–80 dBc
100 kHz to 2 MHz <–65 dBc
Non-harmonic spurious <–80 dBc
(spur frequencies
≤10 MHz)
Phase noise <–120 dBc/Hz
(baseband output of 1 MHz sinewave at 20 kHz offset)
IM performance <–69 dB
(two sinewaves at 950 kHz and 1050 kHz at baseband, full scale)
Triggers
Types Continuous, single, gated,
segment advance
Source Trigger key, bus, external
External polarity Negative, positive
External delay time 2 µs to 3.6 ksec
Markers
(Markers are defined in a segment during the waveform
generation process, or from the ESG front panel. A marker can
also be tied to the RF blanking feature of the ESG.)
Marker polarity
Negative, positive
Bluetooth (UND)
Packet type DH1
Select
Bluetooth device address
(BD_ADDR)
12 Hex digits
Active member address
(AM_ADDR)
0 to 7
Payload data 8-bit repeating pattern
Truncated PN9
Continuous PN9
Impairments
Frequency offset –100 kHz to +100 kHz
Resolution 1 kHz
Frequency drift/packet
Linear or Sinusoidal –100 kHz to +100 kHz
Resolution 1 kHz
Modulation index 0.250 to 0.400
Resolution .001
Symbol timing error –50 ppm to 50 ppm
Resolution 1 ppm
AWGN with adjustable C/N –10 dB to –40 dB
Resolution 1 dB
Burst 1 to 10 #symbol/ramp
Resolution 1 symbol/ramp
Clock/gate delay 0 to 24999.9 symbols
Resolution 0.1 symbols
Other formats (UND)
NADC, PDC, PHS, GSM, DECT, TETRA, APCO25, CDPD, PWT,
EDGE and custom
Multicarrier
Number of carriers Up to 64 (limited by a max
bandwidth of 15 MHz )
Frequency offset (per carrier) –7.5 MHz to +7.5 MHz
Power offset (per carrier)
0 dB to –40 dB
Modulation
PSK BPSK, QPSK, OQPSK,
π/4
DQPSK, 8PSK, 16PSK,
D8PSK
QAM 4, 16, 32, 64, 256
FSK Selectable: 2, 4, 8, 16
Level symmetric
MSK
Data Random ONLY
(For external data,
bursting and framing refer
to real-time I/Q baseband
generator, Option UN8)
Multitone
Number of tones
2 to 64, with selectable on/off
state per tone
Frequency spacing 100 Hz to 5 MHz
Bandwidth Up to 16 MHz, typical
Phase (per tone) 0 to 360 degrees
Additive white Gaussian noise
Bandwidth
50 kHz to 15 MHz
Waveform lengths 16, 32, 64, 128, 256, 512, 1024
ksamples
Noise seeds Fixed, random