PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 415

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

Some incompatible modules share the same internal memory space. If this is for
example the case for the incompatible modules A and B, and both modules are going to
be used at different times, then the following scenario appears: Module A has to be
programmed prior to use. After a while, it is disabled, module B is programed and module
B is enabled. At a later time, module B is disabled. Before module A is enabled, the
parameters of module A must be reprogrammed. This reprograming is necessary for all
combination listed in table 20-33.
Table 20-33 Reprogram parameters
After use of this
A further restriction may occur because of the resource costs (MIPS) of the
simultaneously applied modules. Each module currently in use takes up some
resources. The MIPS a module needs is listed in table 20-34. The sum of resources all
applied modules must never exceed the maximum DSP clock frequency in MHz. Thus,
it may be necessary to restrict the length of the FIR filter of the echo cancellation unit if
several other units are operating at the same time. A special case is the slowest clock
rate for the DSP (16 MHz). For this clock rate, the sum of all modules must not exceed
14 MIPS.
Table 20-34 Module Weights
Module
Equalizer
DTMF Generator
Tone Generator
Peak Detector
Speakerphone
AGCX
AGCR
Data Sheet
AEC subband mode
"Enhanced"
AEC subband mode "ISDN" DTMF detector, line echo canceller
AEC fullband mode two with
number of taps >645
noise redcuction module
with mode MD=10
The parameter of these must be reprogrammed
DTMF detector, line echo canceller, tone generator,
DTMF generator
DTMF detector, line echo canceller
DTMF detector, line echo canceller
2.33 / 4.16
Weight
0.88
0.71
0.19
3.97
0.70
0.73
415
Comment
Per equalizer
8 kHz / 16 kHz rate
Digital Signal Processor
PSB 21473
2003-03-31
INCA-D