PSB2163T-V31TR Infineon Technologies, PSB2163T-V31TR Datasheet - Page 61

• 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

A programmable Loudness Gain Adjustment stage (LGAX) offers the possibility to
amplify the TX-signal after the speech comparator SCAE and the speech detector SDX.
If a lower signal range in front of the SDX is necessary to determine between speech
and echo a part of the TX-amplification can be transferred to the LGAX. It is enabled
together with the bit GCR.SP. Even if the AGCX is disabled in speakerphone mode the
LGAX remains enabled.
Figure 27
Function of the Transmit AGC
Description of the programmable parameters:
Parameter # of CRAM
LGAX
COMX
AGX
TMLX
TMHX
NOISX
Semiconductor Group
Bytes
1
1
1
1
1
1
Range
– 12 to 12 dB
0 to – 73 dB
0 to 18 dB
1 to 2700 ms/dB
1 to 340 ms/dB
0 to – 95 dB
60
Comment
Loudness Gain Adjustment
Compare level rel. to max. PCM-value
Gain range of Automatic control
Settling time constant for lower levels
Settling time constant for higher levels
Threshold for AGC-reduction
by background noise
Functional Description