Characteristic Specifications Supplemental Information
APx555 B Series Audio Analyzer: Analog I/O Specifications 37
555
Flatness (1 kHz ref)
SR = 175 kS/s to 216 kS/sec Typically <0.015 dB to 20 kHz
SR = 8 kS/s to 108 kS/sec Typically <0.010 dB to 20 kHz or
0.45 • SR, whichever is lower
Spurious Content Typically <(–100 dB + 0.2 µV)
ADC Test Signal (requires
optional software license)
All analog generator audio perfor-
mance specifications apply unless
otherwise noted below.
Configurations
Balanced, Differential AC signal plus common mode DC
bias applied to both sides of DUT
Balanced, Single-Ended AC signal plus DC bias applied only to
high side, low side is grounded
Source Impedance (Rs) Same as Balanced (Rs = 40 , 100 ,
150 , 200 , or 600 )
Each side to ground is Rs / 2
Pin Voltage Protection If ON, limits signal peak voltage on pins
2 and 3 of the balanced output connec-
tor relative to ground
Positive Peak Limit
(Pin Voltage Max)
–0.400 V to +5.750 V Must be greater than Negative Peak
Limit setting. +5.750 V peaks can occur
if Pin Voltage Protection is OFF
Negative Peak Limit
(Pin Voltage Min)
–1.950 V to +4.200 V Must be less than Positive Peak Limit
setting. –1.950 V peaks can occur if Pin
Voltage Protection is OFF
DC Bias Range (Vbias) –0.400 V to +4.200 V in 1 mV steps May be additionally limited by the Posi-
tive and Negative Peak limits if Pin Volt-
age Protection is ON
DC Bias Accuracy ±(0.3% + 3 mV)
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