PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 393

• 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 20-11 Automatic Gain Control Parameters
Parameter # of Bytes Range
AG_INIT
COM
AG_ATT
AG_GAIN
AG_CUR
SPEEDL
SPEEDH
NOIS
LPA
Note: There are two sets of parameters, one for AGCX and one for AGCR.
Note: By setting AG_GAIN to 0 dB a limitation function can be realized with the AGC.
20.1.3.6 Fixed Gain
Each signal path features an additional amplifier (LGAX, LGAR) that can be set to a fixed
gain. These amplifiers should be used for the basic amplification in order to avoid
saturation in the preceding stages. Table 20-12 shows the only parameter of this stage.
Table 20-12 Fixed Gain Parameters
Parameter # of Bytes Range
LGAX
LGAR
20.1.3.7 Mode Control
Table 20-13 shows the main registers used to determine the signal sources and the
mode.
Data Sheet
1
1
1
1
1
1
1
1
1
1
1
-95 dB to 95dB
0 to – 95 dB
0 to -95 dB
0 to 48 dB
-95 dB to 95 dB
0.25 to 62.5 dB/s
0.25 to 62.5 dB/s
0 to – 95 dB
0.025 to 16 ms
-24 dB to 24 dB always active
-36 dB to 12 dB always active
Comment
393
Comment
Initial AGC gain/attenuation
Compare level rel. to max. PCM-value
Attenuation range
Gain range
Current gain/attenuation
Change rate for lower levels
Change rate for higher levels
Threshold for AGC-reduction
by background noise
AGC low pass time constant
Digital Signal Processor
PSB 21473
2003-03-31
INCA-D