Atec HP-Agilent-8904A - Manual (Page 9)

9
Agilent digital technology:
Unparalleled performance at an
unprecedented price
The Agilent 8904A’s Digital Waveform
Synthesis IC uses Agilent’s propri-
etary CMOS high-density VLSI
process. With 100,000 transistors,
this IC realizes four complete wave-
form synthesizers, plus a host of sup-
port functions, on a single chip. The
Digital Waveform Synthesis IC allows
the 8904A to generate complex wave-
forms with accuracy and repeatability
not found in traditional analog func-
tion generators or multi-phase-lock-
loop synthesizers. In addition, drift
and power consumption are reduced
while reliability is increased (over
400 MSI TTL chips would be required
to emulate the function of the Digital
Waveform Synthesis IC).
Abbreviated specifications
Frequency range
Sine wave: 0.1 Hz to 600 kHz
Square, triangle, ramp: 0.1 Hz to 50 kHz
AC amplitude
Range: 0 to 10V
p-p
into a 50
Ω
load
Accuracy (sine wave): 1%, 0.1 Hz to 100 kHz
Flatness (>630 mV
p-p
, 1 kHz reference): ±0.009 dB, 0.1 Hz to 100 kHz
DC amplitude
Range: 0 to ±10V open circuit
THD+N (amplitude >50 mV rms, 80 kHz BW, sine wave)
– 66 dBc rms, 20 Hz to 20 kHz (30 kHz BW to 7.5 kHz)
Phase (sine wave)
Range: 0 degrees to 359.9 degrees
Gaussian noise
Spectral characteristic: Equal energy per unit bandwidth (“white”)
Option 001 specifications
Modulation (with Option 001)
Modulation for channel A ONLY, and specified for sine wave carrier and modulation.
External modulation is NOT possible.
Modulation types: AM, FM, f M, Pulse, and DSBSC
Summation (with Option 001)
Two, three, or four channels may be summed into a single output. Two or three channels
may be summed for modulation of channel A.
Sequence
Sequence modes: Tone, DTMF, and Digital sequence modes
Sequence length: 250 tones for Tone and DTMF modes; 1,000 bits for Digital mode
Timing resolution: 10 µs