FLUKE-271

All waveforms are available up to 10 MHz. However, the purity of triangle, ramp, and multi-level square wave waveforms is not specified above the frequencies indicated in the following section.

Range

0.1 mHz to 10 MHz

Resolution

7 digits or 0.1 mHz

Accuracy

Typically < ± 10 ppm for 1 year, 18 °C to 28 °C

Tempco

Typically < 1 ppm/°C outside 18 °C to 28 °C

Distortion

< –60 dBc to 20 kHz, < –50 dBc to 300 kHz, < -35 dBc to 10 MHz

Spurii

Non -harmonically related spurii typically <- 60 dBc to 10 MHz

Rise and fall times

< 22 ns

Linearity error

< 0.5 % to 30 kHz

Linearity error

< 0.5 % to 30 kHz

Rise and fall times

< 22 ns

Up to 16 steps available per cycle, each step selectable for amplitude (10 bit resolution) and duration (1 to 1024 samples). Above 27 kHz a 36 ns edge uncertainty is introduced.

Rise and fall times

< 22 ns

A number of “complex” waveforms are pre-programmed in ROM . A further five, user defined, waveforms may be loaded via the digital interfaces and stored in non-volatile RAM. Frequency range: All waveform points can be continuously output up to 27 kHz, beyond which they are sampled.

No. of samples

1024 10 bit samples

Noise

Wideband noise with variable amplitude and offset.

Range

Sine — 1 % to 99 % at all frequencies; Other waveforms — 1 % to 99 % to 30 kHz,

20 % to 80 % to 10 MHz

Resolution

0.1 %

50 Ω or 600 Ω switchable

5 mV to 20 V pk-pk open circuit (2.5 mV to 10 V into 50 Ω/600 Ω). Output can be specified as V-H: 2

(open circuit value) or V (Voltage into the characteristic impedance) in pk-pk, RMS or dBm.

Note that in positive or negative pulse modes the amplitude range is 2.5 mV to 10 V pk-pk O/C.

Typically ±3 % ±1 mV at 1 kHz into 50 Ω/600 Ω

±0.2 dB to 500 kHz; ±1 dB to 10 MHz

<5 %+ 2 mV

± 10 V from 50Ω/600 Ω offset plus signal peak limited to ± 10 V from 50 Ω/600 Ω

3 digits or 1 mV for both amplitude and offset

Carrier frequency

0.1 mHz to 10 MHz

Carrier waveforms

All

Depth

0 to 100 %, resolution 1 %

Internal source

1 kHz fixed sinewave or 0.005 Hz to 50 kHz square wave

External

See “VCA In” section

Phase coherent switching between two frequencies at a rate defined by the switching signal source

Carrier frequency

0.1 mHz to 10 MHz

Carrier waveforms

All

Switch repetition rate

dc to 50 kHz internal, dc to 1 MHz external

Switching signal source

Internal from keyboard or trigger generator. External from EXT TRIG input or remote interface

Phase coherent signal keying — each positive edge of the trigger signal will produce one burst of the carrier, starting and stopping at the phase angle specified by the start/stop phase setting

Carrier frequency

0.1 mHz to 10 MHz

Carrier waveforms

All

Number of cycles

1 to 1023 (resolution 1 cycle) or 0.5 to 511.5 (resolution 1/2 cycle)

Trigger rep. rate

dc to 50 kHz internal, dc to 1 MHz external

Source

Internal from keyboard or trigger generator. External from EXT TRIG input or remote interface

Non phase-coherent signal keying — output is On while Gate signal is high and Off while low.

Carrier frequency

From 0.1 mHz to 10 MHz

Carrier waveforms

All

Trigger rep. rate

dc to 50 kHz internal dc to 1 MHz external

Gate source

Internal from keyboard or trigger generator. External from EXT TRIG input or remote interface

Carrier waveforms

All

Sweep mode

Linear or logarithmic, single or continuous

Sweep width

0.1 mHz to 10 MHz. Phase continuous. Independent setting of the start and stop frequency.

Sweep time

10 ms to 999 s (3 digit resolution)

Markers

Two markers variable during sweep. Available at the TRIG/SWEEP OUT socket

Sweep trigger source

The sweep may be free run or triggered from: keyboard, EXT TRIG input, remote interface

Up to 16 different “hop” waveforms can be defined in terms of function, frequency, amplitude, offset and duration. Duration setable per step 1 ms to 60 s.

Carrier frequency

0.1 mHz to at least 1 MHz

Carrier waveforms

All

Range

–360 to +360 degrees

Resolution

1 degree

Accuracy

Typically 1 degree to 30 kHz

Internal source 0.005 Hz to 50 kHz squarewave adjustable in 20 us steps. 3 digit resolution. Available for external use from TRIG/SWEEP OUT socket.

CMOS/TTL levels with symmetry and frequency of main output and phase of start-stop phase setting

Multi-function output depending upon mode. Except in sweep mode, the output is that of the trigger generator at CMOS/TTL levels from 1 kW.

In Sweep mode the output is a 3-level waveform, changing from high (+4 V) to low (0 V) at the start of sweep, with narrow 1 V pulses at each marker point.

Frequency range

DC to 1 MHz

Signal range

TTL (1.5 V) threshold; maximum input ± 10 V

Min. pulse width

50 ns

Frequency range

DC – 100 kHz

Signal range

2.5 V for 100 % level change at maximum output

Input impedance

Typically 6 kΩ

TTL/CMOS threshold levels; output impedance typically 50 Ω as an output

TTL/CMOS logic levels from typically 50 Ω. The signals from these sockets are used to phase lock two or more generators.

Variable Baud rate, 9600 Baud maximum. 9-pin D-connector.

Conforming with IEEE488.1 and IEEE488.2

20 character x 4 row alphanumeric LCD

Keyboard selection of mode, waveform etc.; value entry direct by numeric keys or by rotary control.

Up to 9 complete instrument set-ups may be stored and recalled from battery-backed memory.

3U (130 mm) height; half-rack (212 mm) width, 330 mm long

4.1 kg (9 lb)

100 V ac, 110 to 120 V ac or 220 to 240 V ac +/– 10 %, 50/60 Hz ac by internal adjustment; 30 VA max.

+5 °C to 40 °C, 20 to 80 % RH

–20 °C to +60 °C

IEEE-488 interface; 19-in rack mounting kit