PSB 21373 H V1.1 Infineon Technologies, PSB 21373 H V1.1 Datasheet - Page 79

• 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

Data Sheet
2.3.4.2.2
INFO 0 has to be transmitted as long as no valid INFO (INFO 2 or INFO 4) is received.
After reception of INFO 2 transmission of INFO 1 has to be started. After additional 8
frames (2 ms, synchronization time for the LT) transmission of INFO 3 has to be started.
Figure 41
Example of Activation/Deactivation initiated by the Line termination (LT).
Activation/Deactivation completely under software control
Activation initiated by the Line Termination LT
µC Interface
T2
RINF='01'
RINF='10'
XINF='010'
XINF='011'
RINF='00'
XINF='000'
T1
T2
T3
TE
TE
TE
TE
: 4 to 5 frames (2 ms to 2.25ms)
:
:
8 frames (2 ms)
4 frames (1 ms)
TE
T1
T3
TE
TE
79
Line Interface
INFO 0
INFO 2
INFO 1
INFO 4
INFO 3
INFO 0
INFO 0
INFO 0
act_deac_lt_ext_d
LT
PSB 21373
2002-05-13