PSB 21373 H V1.1 Infineon Technologies, PSB 21373 H V1.1 Datasheet - Page 31

• 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
2.1.3
The microcontroller clock is provided by the pin MCLK. Five clock rates are selectable by
a programmable prescaler (see chapter clock generation figure 73) which is controlled
by the MODE1.MCLK bits corresponding following table. By setting the clock divider
selection bit (MODE1.CDS) a doubled MCLK frequency is available.
The possible MCLK frequencies are listed in table 4.
Table 4
MCLK Frequencies
MCLK
Bits
’00’
’01’
’10’
’11’
The clock rate is changed after CS becomes inactive.
Microcontroller Clock Generation
MCLK Frequency
with MODE1.CDS = ’0’
3.84 MHz (default)
0.96 MHz
7.68 MHz
disabled
-31
MCLK Frequency
with MODE1.CDS = ’1’
7.68 MHz (default)
1.92 MHz
15.36 MHz
disabled
PSB 21373
2002-05-13