PSB21373HV11XT Infineon Technologies, PSB21373HV11XT Datasheet - Page 127

• Manufacturer Part Number: PSB21373HV11XT
• Manufacturer: Infineon Technologies
• Type: PCMr

Specifications of PSB21373HV11XT

• Number Of Channels: 1
• Number Of Adc's: 1
• Number Of Dac's: 1
• Number Of Adc Inputs: 1
• Pin Count: 44
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

PSB 21373
4.4.4.1
Speech Comparator at the Acoustic Side (SCAE)
In principle, the SCAE works according to the following equation:
if
SX > SR + VAE then TX
else RX
Being in RX-mode, the speech comparator at the acoustic side controls the switching to
TX-mode. Only if the SX-signal is higher than the SR-signal plus the expected/measured
acoustic level enhancement (VAE), the comparator switches immediately to TX-mode.
Physically the level enhancement (VAE) is divided into two parts: GAE and GDAE.
•
Figure 65
Speech Comparator at the Acoustic Side
Data Sheet
127
2002-05-13