PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 366

• 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

Data Sheet
19
The Analog Front End section of the INCA-D is the interface between the analog
transducers and the digital signal processor.
A block diagram of the AFE is shown in figure 19-1.
•
Figure 19-1 Analog Front End
19.1
In the transmit direction the AFE function is to amplify the transducer input signals
(handset microphone, headset microphone and stand-alone microphone) and to convert
them into digital signals. In the AFE receive section the incoming digital signal is
converted to an analog signal which is output to an earpiece of an handset or headset
and/or a loudspeaker.
VREF
BGREF
MIP1
MIN1
MIN2
MIP3
MIN3
HOP1
HON2
HOP2
HON2
LSN
MIP2
LSP
Analog Front End
Analog Front End (AFE) Description
200
200
VREF
AHO1
AHO2
ALS
AMI
ALFS
ALFS
ALF2
PREFI
TGL
366
TRO
POFI
A/D
LS
D/A
DEC
INT
Analog Front End
from DSP
(TONE-GEN.)
to DSP
from DSP
PSB 21473
2003-03-31
INCA-D