PSB 21373 H V1.1 Infineon Technologies, PSB 21373 H V1.1 Datasheet - Page 82

• 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

2.3.8
The transmit pulses are raised cosine shaped in order to reduce RF energy, crosstalk
and intersymbol interference.
Figure 42 shows a single pulse in the time domain compared against the pulse mask.
Figure 43 shows the theoretical power density of a random pattern scrambled by the
polynom specified in chapter 2.3.1.
Figure 44 shows the typical power density of a random pattern scrambled by the
polynom specified in chapter 2.3.1. This figure is obtained after the simulation of the
integrated pulse shaper together with the external circuit of figure 45.
Figure 42
Simulated Single Pulse compared against the Pulse Mask
Data Sheet
Transmitter Characteristics
-0.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
721u
721.5u
722u
722.5u
723u
Graph11
t(s)
82
723.5u
724u
724.5u
725u
(V) : t(s)
linedu
mask_high_p
mask_low_p
pulse_mask_d
PSB 21373
2002-05-13