PSB2163T-V31TR Infineon Technologies, PSB2163T-V31TR Datasheet - Page 163

• Manufacturer Part Number: PSB2163T-V31TR
• Description: IC AUDIO RINGING CODEC 28-PDSO
• Manufacturer: Infineon Technologies
• Series: ARCOFI®r

Specifications of PSB2163T-V31TR

• Function: CODEC Filter
• Interface: IOM-2, PCI, Serial
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 900µA
• Power (watts): 1mW
• Operating Temperature: -25°C ~ 80°C
• Mounting Type: Surface Mount
• Package / Case: DSO-28
• Includes: Activation and Deactivation, B-Channel and D-Channel HDLC Controllers, D-Channel Priority Handler, Monitor Channel Handler
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Other names: PSB2163T-V31INTR; PSB2163T-V31TR

Speakerphone Implementation
Figure 15
Explanation of the Controlled Monitoring Mode
Hints for Optimizing
Generally, the controlled monitoring feature should be optimized after having found a
appropriate set of coefficients for the speakerphone. Then, after enabling the
ARCR.CME bit, only fine tuning is necessary. The system should be stable even if the
handset microphone is placed close to the loudspeaker. Due to the instantaneously
switching of the ALS, a reduction of DS and SW (decay speed, switching time) avoids
short-time instabilities. Note, that GAE must be adapted, if amplification in the
loudspeaker amplifier, the microphone amplifier or the GX stage is reprogrammed
(remember figure 14).
Semiconductor Group
162