PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 30

• 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

Table 10
Pin No. Symbol
Table 11
Pin No. Symbol
1
144
2
3
4
Table 12
Pin No. Symbol
140
Data Sheet
17
16
15
FLEXMON2
CONVDISMON O
CCMON
TDI
TDO
TMS
TCK
TRST
KSCMOD
Channelwise Serial Interface (cont’d)
Test Interface for Boundary Scan according to IEEE 1149.1
Test Interface
I/O, PU/PD
I/O, PU/PD Function
I/O, PU/PD Function
O
O
I, PU
O
I, PU
I, PU
I, PU
I, PD
Test Data Input
Test Data Output
Test Mode Select
Test Clock
Boundary Test Reset (active low, should be
tied to '0' for normal operation)
SCAN MODE ENABLE pin for enabling of
scan test. For normal operation this pin should
be left unconnected or connected to V
Function
Serial 256 kbit/s monitor output signal (32
channels at 8 kbit/s), monitoring according to
settings of the bits CONFLEXMON[3:0], e.g.
Idle channel detection, 2010 Hz tone
detected, 2100 Hz tone with or without phase
reversal detected, double talk detected, no
speech detected
Serial 256 kbit/s law conversion disable
monitor output signal ('1': conversion disabled,
'0': conversion enabled)
Serial 256 kbit/s clear channel transparency
(64 clear) monitor output signal ('1': clear
channel on, '0': clear channel off), same as
DISMON='1' and CONVDISMON='1'
30
Rev. 2, 2004-07-28
Pin Description
PEB 20954
PEF 20954
SS
.