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Atec Agilent-E8267D User Manual

Page 28

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28

Baseband generator

Accepts a sine or square wave PECL clock input with a

clock input

frequency range of 200 to 400 MHz (resulting in sample

rates of 50 MSa/s to 100 MSa/s). The recommended input

level is approximately 1 V

peak-to-peak

for a square wave and

0 dBm to 6 dBm for a sine wave. Allows the baseband

generators of multiple signal sources to run off same clock.

Burst gate input

Accepts signal for gating burst power for use with internal

baseband generator (Option 602). The burst gating

is used when you are externally supplying data and clock

information. The input signal must be synchronized with

the external data input that will be output during the burst.

The burst power envelope and modulated data are internally

delayed and re-synchronized. The input signal must be

CMOS high for normal burst RF power or CW RF output

power and CMOS low for RF off. Damage levels are

> +5.5 V and < –0.5 V.

Event 1 output

In real-time mode, outputs a pattern or frame synchronization

pulse for triggering or gating external equipment, for use

with internal baseband generator (Option 602). May

be set to start at the beginning of a pattern, frame, or

timeslot and is adjustable to within ± one timeslot with

one bit resolution. In arbitrary waveform mode, outputs a

timing signal generated by marker 1.

Event 2 output

In real-time mode, outputs a data enable signal for gating

external equipment, for use with internal baseband generator

(Option 602). Applicable when external data is clocked into

internally generated timeslots. Data is enabled when signal

is low. In arbitrary waveform mode, outputs a timing signal

generated by marker 2.

I and Q outputs

Outputs the analog I/Q modulation signals from the internal

baseband generator. Nominal output impedance 50 Ω,

DC-coupled. Damage levels ±3.5 V.

I and Q outputs

Outputs the complement of the I and Q signals for differential

applications. Nominal output impedance 50 Ω, DC-coupled.

Damage levels ±3.5 V.

Pattern trigger input

Accepts signal to trigger internal pattern or frame generator

to start single pattern output, for use with internal baseband

generator (Option 602). Minimum pulse width 100 ns.

Damage levels are > +5.5 V and < –0.5 V.

Wideband I and Q inputs

Direct differential high-bandwidth analog inputs to I/Q

modulator in 3.2 to 44 GHz range and useable for carriers

< 3.2 GHz.. Not calibrated. 0 dBm maximum.

(Option 016 only).

Removable flash memory

Accepts 8 GB compact flash memory card for optional

drive

non-volatile memory (Option 009 only). All user

information (save/recall settings, flatness files, presets,

etc.) is stored on removable memory card when

Option 009 is installed.


Alternate power input

Accepts CMOS signal for synchronization of external data

and alternate power signal timing. Damage levels are

> +8 V and < –4V.

Data clock output

Relays a CMOS bit clock signal for synchronizing serial data.

Data output

Outputs data from the internal data generator or the

externally supplied signal at data input. CMOS signal.

Event 3 output

In arbitrary waveform mode, outputs a timing signal generated

by marker 3. Damage levels > +8 V and < 4 V.

Event 4 output

In arbitrary waveform mode, outputs a timing signal generated

by marker 4. Damage levels > +8 V and < 4 V.

Symbol sync output

Outputs CMOS symbol clock for symbol synchronization,

one data clock period wide.

Auxiliary I/O connector

(37-pin) used with Option 602