PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 60

• Manufacturer Part Number: PEF 20954 HT V1.1
• Description: IC ECHO CANCELLER DGTL TQFP144
• Manufacturer: Infineon Technologies

Specifications of PEF 20954 HT V1.1

• Function: Smart Integrated Digital Echo Canceller (SIDEC)
• Interface: PCM, Serial, UCC
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 350mA
• Power (watts): 900mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 144-LFQFP
• Includes: Double Talk Detection
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: PEF20954HTV1.1; SP000007505

4.2.2
Figure 22
Figure 22
Note:
CONFCC.SYNCODUR to either one or two SCLKI (8.192 MHz) periods.
Data Sheet
SYNCI is clocked in with the falling edge and SYNCO is clocked out with the rising edge of SCLKI,
SYNCI and SYNCO are active low (CONFCC.SSCLKEDGE = '0' and CONFCC.SYNCACT = '0')
SYNCI is clocked in with the rising edge and SYNCO is clocked out with the falling edge of SCLKI,
SYNCI and SYNCO are active low (CONFCC.SSCLKEDGE = '1' and CONFCC.SYNCACT = '0')
SYNCI is clocked in with the rising edge and SYNCO is clocked out with the falling edge of SCLKI,
SYNCI and SYNCO are active high (CONFCC.SSCLKEDGE = '1' and CONFCC.SYNCACT = '1')
SYNCO
SYNCO
SYNCO
SYNCO
SYNCI is clocked in with the falling edge and SYNCO is clocked out with the rising edge of SCLKI,
SYNCI and SYNCO are active high (CONFCC.SSCLKEDGE = '0' and CONFCC.SYNCACT = '1')
SYNCI
SYNCI
SYNCI
SYNCI
SCLKI
SCLKI
SCLKI
SCLKI
The
shows the timing of the synchronization pulses for different configurations.
Timing of SYNCI and SYNCO
Timing of SYNCI and SYNCO
duration
of
3
3
3
3
SYNCO
1
1
1
1
2
2
2
2
pulse
60
can
be
Timing of SYNCI and SYNCO
configured
Operational Description
Rev. 2, 2004-07-28
PEB 20954
by
PEF 20954
register