Tektronix AWG520 User Manual

Arbitrary Waveform Generators

AWG520

AWG520.

AWG520 Solves Communications Physical Layer and Media Storage Design and Test Challenges

The AWG520’s unique design combines a

graphical editing display with powerful out-

put capabilities to simplify the creation of

arbitrary and complex waveforms and

enable easy on-screen waveform editing.

With the AWG520’s many built-in intuitive

and powerful features, you can easily develop

and edit custom waveforms. Option 03 adds

an independent 10-bit-wide digital data

port that can be used in conjunction with

marker outputs for data generation up to

14-bits wide at up to 1 GHz (14-bits,

AWG520). Direct waveform transfer

capability makes the AWG520 the perfect

complement to selected Tektronix

oscilloscopes.

The AWG520 can easily generate telecom signals which complement masks from a digital oscilloscope.

Features & Benefits

Two Channels with 10-Bit Vertical Resolution

Independent 10-Channel, 1 GHz Digital Data Generation (Opt. 03)

Built-in Independent Real-time Noise Generation

External Clock Input Permits Jitter Insertion and Synchronization

Supports Direct External Clock and 10 MHz Reference Input

Unique Real-time Sequencing Links Multiple Waveform Files Creating Waveforms of Nearly Infinite Length

Built-in Application Generates Jitter, Data Communication and Disk Drive Waveforms

User Modified Isolation Pulse for Disk Drive Testing

Built-in 10 GB Hard Drive for Mass Data Storage that Can Optionally Be Made Removable for Secure Applications (using Opt. 11)

Optional 128 MB Flash Disk for ATE Applications (Opt. 10)

Replace Standard Function and Sweep Generators in Wide Range of Applications

Applications

Communications Design and Test:

– Low Frequency Modulated

RF with Components Using AM and FM Modulation

– Digital Information Encoding

Using FSK, PSK and QAM (Quadrature Modulation) for Cellular, Fax and Modem Communications

Optical Communications Design and Test:

– Reflections, Crosstalk and

Ground Bounce Simulation

Pulse Generation:

– Duty Cycle Ranges from

0% to 100% for NRZ Data

– Testing Clock/Gating

Width Variations

Real-world Simulations:

– Corrupt Ideal Waveforms – Add Jitter to Waveforms – EMP/EMI and Other

System Noise

– Power Supply Noise

and Ripple

– Transducer Simulation

Arbitrary Waveform Generators

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Arbitrary Waveform Generators

AWG520

Characteristics

Operating Modes

Continuous – Waveform is iteratively output. If a sequence is defined, the sequence order and repeat functions are applied.

Triggered – Waveform is output only once when an external, internal GPIB/Ethernet or manual trigger is received.

Gated – Waveform begins output when gate is true and resets to beginning when false.

Enhanced – Waveform is output as defined by the sequence.

Arbitrary Waveforms

Waveform Length – 256 to 4,194,048 points in multiples of four.

Sequence Length – 1 to 8,000 steps. Both CH1 and CH2 operate from the same sequence.

Sequence Repeat Counter – 1 to 65,536 or infinite.

Function Generator Waveforms

Operation Mode – Continuous mode only.

Waveform Shape – Sine, Triangle, Square, Ramp,

Pulse, or DC.

Frequency – 1.000 Hz to 100.0 MHz.

Amplitude –

Range: 0.020 V Resolution: 1 mV.

Offset –

Range: –1.000 V to +1.000 V into 50 Ω. Resolution: 1 mV.

DC Level – DC waveform only. Range: –1.000 V to +1.000 V into 50 Ω. Resolution: 1 mV.

Phase –

Range: –360º to +360º. Resolution:

1.000 Hz to 100.0 kHz: 0.036º step.

100.01 kHz to 1.000 MHz: 0.36º step.

1.001 MHz to 5.000 MHz: 1.8º step.

5.001 MHz to 10.00 MHz: 3.6º step.

10.001 MHz to 20.00 MHz: 7.2º step.

20.001 MHz to 25.00 MHz: 9º step.

25.001 MHz to 40.00 MHz: 14.4º step.

40.001 MHz to 50.00 MHz: 18º step.

50.001 MHz to 100.0 MHz: 36º step.

p-p

to 2 V

into 50 Ω.

p-p

Polarity – Normal, Invert.

Duty Cycle –

Range: 0.1% to 99.9%, Pulse waveform only. Resolution:

1.000 Hz to 1.000 MHz: 0.1% step.

1.001 MHz to 5.000 MHz: 0.5% step.

5.001 MHz to 10.00 MHz: 1% step.

10.01 MHz to 20.00 MHz: 2% step.

20.01 MHz to 25.00 MHz: 2.5% step.

25.001 MHz to 40.00 MHz: 4% step.

40.01 MHz to 50.00 MHz: 5% step.

50.01 MHz to 100.00 MHz: 10% step.

Marker Out –

Marker1 Pulse Width: Hi/Lo: 20%/80% of Period. Marker2 Pulse Width:

Hi/Lo: 50%/50% of Period, except 5.001 MHz to 8.000 MHz. Hi/Lo: 52%/48% of Period, at 5.001 MHz to

8.000 MHz.

Marker Level:

Hi Level: 2 V into 50 Ω. Lo Level: 0 V into 50 Ω.

Clock Generator

Sampling Frequency – 50.000000 kHz to

1.0000000 GHz.

Resolution – 8 digits.

Internal Clock –

Accuracy: ±1 ppm. Phase Noise:

At 1 GHz, 10 kHz offset: –80 dBc/Hz. At 1 GHz, 100 kHz offset: –100 dBc/Hz.

Internal Trigger Generator

Internal Trigger Rate –

Range: 1.0 µs to 10.0 s. Resolution: 3 digits, 0.1 µs minimum. Accuracy: ±0.1%.

Main Output

Output Signal – Single-ended; CH1 and CH2.

DA Converter –

Resolution: 10-Bit. Differential Non-linearity: ±1 LSB. Integral Non-linearity: ±1 LSB.

Normal Out –

Pulse Response (–1 and 1 waveform data, 0 V offset, Through filter):

Rise time (10 to 90%): Amplitude >1.0 V, ≤2.5 ns; Amplitude ≤1.0 V, ≤1.5 ns. Fall time (10 to 90%): Amplitude >1.0 V, ≤2.5 ns; Amplitude ≤1.0 V, ≤1.7 ns. Aberrations (at 500 MHz): Amplitude >1.0 V, ±10%; Amplitude ≤1.0 V, ±7%. Flatness (after 50 ns from rise/fall edge): ±3%. Small signal bandwidth (–3 dB, Amplitude

0.5 V): 300 MHz. Sinewave Characteristics (1 GS/s clock, 32 waveform points, 31.25 MHz signal frequency, 1.0 V amplitude, 0 V offset, Through filter):

Harmonics: ≤–50 dBc, DC to 400 MHz. Noise: ≤–53 dBc, DC to 400 MHz. Phase Noise: ≤–90 dbc/Hz at 10 kHz offset.

Filter:

Type: 10, 20, 50, 100 MHz Bessel low-pass. Rise time (10 to 90%): 10 MHz, 35 ns; 20 MHz, 17 ns; 50 MHz, 7.0 ns; 100 MHz, 3.5 ns. Delay from trigger: 10 MHz, 77 ns +1 clock; 20 MHz, 57 ns +1 clock; 50 MHz, 45 ns +1 clock; 100 MHz, 42 ns +1 clock; Through, 37 ns +1 clock.

Direct DA Out –

Output Voltage: 0.5 V

(with –0.27 V offset)

p-p

into 50 Ω. Amplitude Accuracy: 0.5 V

p-p

±10%. DC Offset Accuracy: –0.27 V ±10% (waveform data = 0). Pulse Response (–1 and 1 waveform data):

Rise time (10 to 90%): ≤700 ps. Fall time (10 to 90%): ≤700 ps.

Output Impedance – 50 Ω.

Connector – Front panel BNC.

Channel Output Summary

Output Type AWG520

Analog 2

Complement N/A

Marker CH1: M1, M2

CH2: M1, M2

Digital (Opt. 03) 2 Analog

(CH2 Analog = D0 to D9,

CH1 and CH2 Analog

independent),

D0 to D9, 4 Markers

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