Agilent Technologies EXG Manual de usuario descargar pdf (Pagina 21)

Data types

Internally generated

Pseudo-random patterns

PN9, PN11, PN15, PN20, PN23

Repeating sequence Any 4-bit sequence

Direct-pattern RAM [PRAM] max size

Note: Used for custom TDMA/non-standard framing

32 Mb (standard)

512 Mb (Option 021)

1024 Mb (Option 022)

User ﬁ le

32 MB (standard)

256 MB (Option 021)

512 MB (Option 022)

Externally streamed data

Type Serial data

Inputs/outputs Data, symbol sync, bit clock

(output only)

Internal burst shape

(varies with bit rate)

Rise/fall time range Up to 30 bits

Rise/fall delay range –15 to +15 bits

Multitone and two-tone (Option 430)

Number of tones 2 to 64, with selectable on/off state per tone

Frequency spacing 100 Hz to 120 MHz (with Option 653 and 655)

Phase (per tone) Fixed or random

Real-time phase noise impairments (Option 432)

Close-in phase noise characteristics –20 dB per decade

Far-out phase noise characteristics –20 dB per decade

Mid-frequency characteristics Start frequency (f1) Offset settable from 0 to 77 MHz

Stop frequency (f2) Offset settable from 0 to 77 MHz

Phase noise amplitude level (L(f)) User selected; max degradation dependent on f2

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Agilent Technologies EXG Manual de usuario Pagina 21