Window Flatness; Transient Capture Memory; Signal Generator; Full Scale - Tektronix 2642A Reference

Introduction
1-18
Window Flatness
Boxcar: +0 -4.0 dB
Hanning:
+O -1.5
dB
Flattop: -0 +.01 dB
Transient Capture Memory
2642A Specifications
Record length: standard with
500 K
samples of storage. Optional
memory expansion provides up to 3.5 Mega samples of storage.
Throughput: 256 K samples per second continuous to memory (no
gaps).
Processing: all standard functions (autospectra, crossspectra, transfer
function. etc.)
Signal Generator
One output channel standard wirh instrument
Characteristics
Impedance: 50 Ohms ±2%
Protection:
20 V
max center conductor to chassis,
0.6 V
shell to chassis
Current: ±20 mA max
Stability: unconditional
Convertor: 16 bit D/A convertor
Full Scale
±10
Volts
Functions
Sine, square, sawtooth, triangle, impulse, random. adjustable random.
chirp, arbitrary
Random: bandlimitcd spectral energy matches input analysis bandwidth
Adjustable random: center frequency and bandwidth user selectable
Chirp: spectral energy matches input analysis bandwidth and
concentrated on spectral lines
Arbitrary (see below)