PSB 21393 H V1.3 Infineon Technologies, PSB 21393 H V1.3 Datasheet - Page 38

• Manufacturer Part Number: PSB 21393 H V1.3
• Description: IC CODEC W/TRANSCEIVER MQFP-44
• Manufacturer: Infineon Technologies
• Series: SCOUT™r

Specifications of PSB 21393 H V1.3

• Function: CODEC
• Interface: IOM-2, SCI, UPN
• Number Of Circuits: 1
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 27mA
• Mounting Type: Surface Mount
• Package / Case: 44-BQFP
• Includes: Activation and Deactivation, Channel Handler, DTMF / Tone / Ringing Generator, HDLC Controller, Speakerphone, UPN Transceiver
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Operating Temperature: -
• Other names: PSB21393HV1.3XT; PSB21393HV13XP; SP000007533; SP000007534

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 78) which is controlled
by the MODE1.MCLK bit 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
The clock rate is changed after CS becomes inactive.
MCLK
Bits
’00’
’01’
’10’
’11’
Microcontroller Clock Generation
with MODE1.CDS = ’0’
MCLK Frequency
3.84 MHz (default)
0.96 MHz
7.68 MHz
disabled
28
with MODE1.CDS = ’1’
MCLK Frequency
7.68 MHz (default)
15.36 MHz
1.92 MHz
disabled
PSB 21391
PSB 21393
Interfaces
2001-03-07