PSB 21393 H V1.3 Infineon Technologies, PSB 21393 H V1.3 Datasheet - Page 138
PSB 21393 H V1.3
Manufacturer Part Number
PSB 21393 H V1.3
Description
IC CODEC W/TRANSCEIVER MQFP-44
Manufacturer
Infineon Technologies
Series
SCOUT™r
Datasheet
1.PSB_21391_H_V1.3.pdf
(253 pages)
Specifications of PSB 21393 H V1.3
Function
CODEC
Interface
IOM-2, SCI, UPN
Number Of Circuits
1
Voltage - Supply
3.3V, 5V
Current - Supply
27mA
Mounting Type
Surface Mount
Package / Case
44-BQFP
Includes
Activation and Deactivation, Channel Handler, DTMF / Tone / Ringing Generator, HDLC Controller, Speakerphone, UPN Transceiver
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Operating Temperature
-
Other names
PSB21393HV1.3XT
PSB21393HV13XP
SP000007533
SP000007534
PSB21393HV13XP
SP000007533
SP000007534
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Data Sheet
4.4.4.1
In principle, the SCAE works according to the following equation:
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 69
Speech Comparator at the Acoustic Side
Speech Comparator at the Acoustic Side (SCAE)
if
SX > SR + VAE then TX
else RX
128
PSB 21391
PSB 21393
2001-03-07
Codec
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