PSB 21373 H V1.1 Infineon Technologies, PSB 21373 H V1.1 Datasheet - Page 118

• Manufacturer Part Number: PSB 21373 H V1.1
• Description: IC SPEECH AND VOICE MQFP-44
• Manufacturer: Infineon Technologies
• Series: SCOUT™r

Specifications of PSB 21373 H V1.1

• Function: CODEC
• Interface: IOM-2, SCI
• Number Of Circuits: 1
• Voltage - Supply: 5V
• Current - Supply: 97.5mA
• Mounting Type: Surface Mount
• Package / Case: 44-BQFP
• Includes: Activation and Deactivation, Channel Handler, DTMF / Tone / Ringing Generator, HDLC Controller, Speakerphone, Voice Monitoring
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Operating Temperature: -
• Other names: PSB21373HV1.1XT; PSB21373HV11XT; SP000007602

(center frequency, bandwidth and attenuation of the stop-band) are programmable by
the CRAM parameters listed in Table Chapter 16
Table 16 CRAM Parameters of the Tone Filter
Parameter
A1
A2
K
GE
A maximum attenuation of the first harmonic frequency of 50 dB is possible. Figure
Chapter 62 shall illustrate the equalizer parameters.
•
Figure 62
Filter Parameters of the Equalizer
The two main purposes of the programmable saturation amplification are:
• Level balancing of the filtered signal (avoidance of overload effects).
• Amplification up to + 12 dB followed by a saturation (3.14 dBm0) of the incoming
Data Sheet
signal. This saturation amplification converts a sine-wave signal into a square-wave
# of CRAM
Bytes
1
1
1
1
Range
200 Hz to 4 kHz
0 to – 1
0 to 54 dB
+ 12 to – 12 dB
118
Comment
Center frequency
Determines with A1 and K the
bandwidth. The closer A2 comes
to -1, the smaller the bandwidth.
Attenuation of the stop-band
Saturation amplification
PSB 21373
2002-05-13