PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 383

• 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

Table 20-6
Register
SCTL
SNRATT
SNRLNL
SNRUNL
•
Figure 20-9 Coupling NR with WF
20.1.3
The echo suppression unit can be in one of three states:
• transmit state
• receive state
• idle state
In transmit state the microphone signal drives the line output while the line input is
attenuated. In receive state the loudspeaker signal is driven by the line input while the
microphone signal is attenuated. In idle state both signal paths are active with evenly
distributed attenuation.
Data Sheet
background
noise level
NRLOW
NRUP
Echo Suppression
# of Bits
Noise Reduction Registers
NR-WF coupling
15
15
15
1
start
Name
NR
NRATT
NRLOW
NRUP
Comment
Enable noise reduction
Maximal attenuation of frequencies with noise.
Lower limit to deactivate coupling.
Upper limit to activate coupling.
383
Digital Signal Processor
NR-WF coupling
end
PSB 21473
2003-03-31
INCA-D
time