PSB2163T-V31TR Infineon Technologies, PSB2163T-V31TR Datasheet - Page 140

• 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
2.3
Signal Flow Graphs
Figure 3 shows the whole signal processor part of the ARCOFI-SP which interfaces to
the analog front end (AFE) on the left side.
Figure 3
Signal Flow Graph of the ARCOFI-SP Signal Processor (ASP)
Figure 4 gives an general idea of all signal processing blocks important for
understanding the speakerphone function. Some of the blocks like AGCX, AGCR
(automatic gain stages) and the attenuation stages GHX, GHR can be found directly in
the signal flow graph in figure 3. Others, like the two speech detectors SD and the
speech comparators SCAE, SCLE are located inside the block labeled "speakerphone
support" in figure 3.
Semiconductor Group
139