PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 53

• 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

Figure 14
In the master clock mode with 8.192 MHz clock
clock is supplied by the VCO. The SIDEC provides a controlling voltage for the VCO in
order to synchronize the CLK32 to the system clock SCLKI.
SDECI is not connected and the SDECO can be connected to other SIDECs.
Data Sheet
SCLKI
8.192MHz
SDECI n.c.
Master Clock Mode with External 8.192 MHz Clock
VCO
SIDEC
Master Clock Mode 32MHz with 8MHz
53
(Figure
14), the 32.768 MHz operating
SDECO (to slave)
Operational Description
CLK4O
Rev. 2, 2004-07-28
PEB 20954
PEF 20954