PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 398

• 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
Figure 20-20 DTMF Generator - Block Diagram
Both generators and amplifiers are identical. There are two modes for programming the
generators, cooked mode and raw mode. In cooked mode, DTMF tones are generated
by programming a single 4 bit code. In raw mode, the frequency of each generator/
amplifier can be programmed individually by a separate register. The unit has two
outputs which provide the same signal but with individually programmable attenuation.
Table 20-18 shows the parameters of this unit.
Table 20-18 DTMF Generator Registers
Register # of Bits
DGCTL
DGCTL
DGCTL
DGF1
DGF2
DGL
DGL
DGATT
DGATT
Note: DGF1 and DGF2 are undefined when cooked mode is used and must not be
written.
1
1
4
15
15
7
7
8
8
generator
generator
f
f
1
2
Name
EN
MD
DTC
FRQ1
FRQ2
LEV1
LEV2
ATT1
ATT2
gain2
gain1
Comment
Enable for generators
Mode (cooked/raw)
DTMF code (cooked mode)
Frequency of generator 1
Frequency of generator 2
Level of signal for generator 1
Level of signal for generator 2
Attenuation of S
Attenuation of S
398
9
10
att2
att1
Digital Signal Processor
S
S
10
9
PSB 21473
2003-03-31
INCA-D