PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 92

• 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

The bits CONFFLEXMON1[3:0] and CONFFLEXMON2[3:0] configure the serial control
signals FLEXMON1 and FLEXMON2, respectively.
CONFFLEXMON1[3:0] / CONFFLEXMON2[3:0]
Data Sheet
Configuration of the flexible monitor output signal at pin FLEXMON1/
FLEXMON2
"0000":
"0001":
"0010":
"0011":
"0100":
"0101":
"0110":
"0111":
"1000":
"1001":
"1010":
"1011":
"1100":
"1101":
"1110":
Idle channel detected is monitored at pin FLEXMON1 /
FLEXMON2
2010 Hz speech protection: first level reached (bypass of
entire canceller) is monitored at pin FLEXMON1 /
FLEXMON2
2010 Hz speech protection: second level reached
(H-Register reset) is monitored at pin FLEXMON1
2010 Hz (SS Nr.7) detected but without speech protection
is monitored at pin FLEXMON1 / FLEXMON2
Convergence stability protection for non-speech signals
active is monitored at pin FLEXMON1 / FLEXMON2
Fast convergence mode active is monitored at pin
FLEXMON1 / FLEXMON2
Near end subscriber is louder than the far end subscriber
(true double talk) is monitored at pin FLEXMON1 /
FLEXMON2
Subtractor bypassed because ERL > value of
BYPTHL[4:0] is monitored at pin FLEXMON1 /
FLEXMON2
2100 Hz with phase shift and speech protection detected
is monitored at pin FLEXMON1 / FLEXMON2
2100 Hz detected with speech protection
is monitored at pin FLEXMON1 / FLEXMON2
2100 Hz detected but without speech protection
is monitored at pin FLEXMON1 / FLEXMON2
"No-voice" detected is monitored at pin FLEXMON1 /
FLEXMON2
RITESTDATA in channel selected by register ATE
( 2 MHz stream valid only in selected test channel
otherwise all zeros ) is monitored at pin FLEXMON1 /
FLEXMON2
SITESTDATA in channel selected by register ATE
( 2 MHz stream valid only in selected test channel
otherwise all zeros ) is monitored at pin FLEXMON1 /
FLEXMON2
Far end speech exceeds level configured in
CONFSCU3.MINLEV and background noise is
monitored at pin FLEXMON1 /FLEXMON2
92
Register Description
Rev. 2, 2004-07-28
PEB 20954
PEF 20954