PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 409

• 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

20.2
This section describes the interfaces of the DSP to the IOM-2 Bus (CDI) and the interface
between CPU and DSP.
20.2.1
Interfaces
Each channel has three configurable inputs and one output as shown in figure 20-30.
•
Figure 20-30 Digital Interface - Block Diagram
Each outgoing signal can be the sum of two signals with no attenuation and one signal
with programmable attenuation (ATT). The attenuator can be used for artificial echo loss.
Each input can be passed through an optional high-pass (HP). The associated registers
are shown in table 20-28.
Table 20-28 Digital Interface Registers
Register # of Bits
IFS3
IFS3
IFS3
IFS3
IFS4
IFS4
IFS4
IFS4
Data Sheet
5
5
5
1
5
5
5
1
Digital Interfaces
Interface to IOM handler (Codec Digital Interface - CDI)
S
6
, S
Name
I1
I2
I3
HP
I1
I2
I3
HP
8
or S
24
Channel 1, 2 or 3 of CDI
Comment
Input signal 1 for S
Input signal 2 for S
Input signal 3 for S
High-pass for S
Input signal 1 for S
Input signal 2 for S
Input signal 3 for S
High-pass for S
HP
409
ATT1
5
7
S
5
, S
6
6
6
8
8
8
7
or S
I
I
I
1
2
3
23
Digital Signal Processor
PSB 21473
2003-03-31
INCA-D