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Model 3312A
® Two function generators in one instrument
© AM-FM, sweep, trigger, gate and burst
HP 3312A
Description
Hewlett-Packard’s 3312 A Function Generator combines two sepa-
rate, independent function generators with a modulator section in one
compact instrument,
The main generator can—via pushbutton controi~be triggered by
the modulation generator to provide sweep functions, AM, FM or
tone burst,
Ten Y p-p into 50 provides adequate power for most applications.
The output attenuator has a range of more than 10,000:1 so clean
low-level signals from 10 Vio 1 mV p-p into 50 © can be obtained.
The main generator includes dc offset up to ¡O volts p-p into 50 Q.
The HP 3312A is an effective low cost solution for generating a
~ muititude of functions.
Specifications
Cutput waveforms: sine, square, triangle, = ramp, pulse, AM, FM,
sweep, triggered and gated.
Frequency Characteristics
Range: 0.1 Hz to 13 MHz in 8 decades ranges.
Dial accuracy: +5% of full scale. Unspecitied in Uncal Mode,
Square wave rise or tall time (19% to 90% y: <20 ns.
Aberrations: <10%.
Triangle linearity error: <1% at 100 Hz.
Variable symmetry: 80:20:80 10 1 MHz.
Sine wave distortion: <0.5% (-46 dB) THD from 10 Hz to 50
kHz. (10 kHz range maximum). > 30 dB below fundamental from 50
kHz to 13 MHz, at full-rated output.
Ouiput Characteristics
impedance: 50 Q + 10%,
Level: 20 V p-p into open circuit, > 10 Y p-p into 50 Q at 1 kHz.
Level flatness (sine wave}: <+3% from 10 Hz to 100 kHz at full
rated output (1 kHz reference). <=10% from 100 kHz to 10 MHz.
Attenuator: 1:1, 10:1, 100:1, 1000:1 and >10:1 continuous control.
Attenuator error: <5%.
Sync output: impedance: 50 Q +10%, >1 Y p-p square wave into
open circuit. Duty cycle varies with symmetry control.
DC offset: variable up to + 10 volts. Instantaneous ac voltage + Vdc
offset cannot exceed + 10 V (open circuit) or + 5 V (terminated 50
ohm).
modulation Characteristics
Types: internal AM, FM, sweep, trigger, gate or burst: external AM,
FM, sweep, trigger, gate or burst.
Waveforms: sine, square, triangle, ramp or variable symmetry pulse,
Frequency range: 0.01 Hz to 10 kHz.
Output level: > 1.0 Y p-p into 10 ko.
NCTHON GENERATOR:
DUE ATION -
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Amplitude Modulation
Depth: 0 to 100%.
Modulation frequency: 0.01 Hz to 10 kHz (internal). DC tos
MHz (external). y
Carrier 3 dB bandwidth: <100 Hz to >5 MHz.
Carrier envelope distortion: <2% at 70% sine wave modulatit
with fc = ! MHz, fy = 1 kHz. |
External sensitivity: <10 Y p-p for 100% modulation.
Frequency Modulation
Deviation: 0 to +5% (internal).
Modulation frequency: internal: 0.01 Hz to 10 kHz; external:
to >50 kHz.
Distortion: <—35 dB at fo = [0 MHz, fm = 1 kHz, 10% modulatio
Sweep Characteristics
Sweep width: >100:1 on any range, |
Sweep rate: 0.01 Hz to 10 kHz, 90:10 ramp, and 0 Hz Range (pré
vides manual setting of “Sweep Start” without modulation generaio
oscillating}, E
Sweep mode: repetitive linear sweep between start and stop fre
quency settings. Retrace time can be increased with symmetry -con
trol.
Hamp output: 0 to > —4 p-p into 5 КО.
Gate Characteristics
Start/stop phase range: +90° to —80°,
Frequency range: 0.1 Hz to | MHz (useful to 10 MHz).
Gating signal frequency range (external): dc to 1 MHz TTL
compatible,
External Frequency Control |
Range: 1000: 1 on any range. в
Input requirement: with dial set at 10, 0 to —2 Y +20% will linearl
decrease frequency >1000:1. An ac voltage will FM the frequency
about a dial setting within the limits (0,1 < f < 10) x range setting.’
Linearity: 0.5% of Fmax for Fmax < 1 MHz 5.0% of Fmax for Fmax
> | MHz. Deviation is from a best ft straight line. VCO frequency
span < 100:1,
input impedance: 2.8 kQ +5%.
General Ш
Operating temperature: 0°C to +355°C; specifications apply front
0°C to 40°C.
Storage temperature: —40°C to +75°C, A
Power: 100 V, 120 V, 220 V, 240 V +5%, —10%, switchable; 48 Hz
to 440 Hz; <25 VA,
Size: 102 mm H x 213 mm W x 377 mm D (4" x 8.4" x 14.8").
Weight: net, 3.8 kg (8.4 1b). Shipping, 5.9 kg (13 Ib).
HP 33124 Function Generator $1,450
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