PEF 20954 HT V1.1 Infineon Technologies, PEF 20954 HT V1.1 Datasheet - Page 31

• 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 12
Pin No. Symbol
139
141
Note: The Test interface will be used by the manufacturer. For normal operation, this
Table 13
Pin No.
6,14,20,26,
32,42,48,54,6
0,66,76,80,86
,90,95,98,105
,116,
122,125,
128,134,
138,143
5,13,19,25,
31,41,47,
59,65,75,
79,85,89,94,
97,104,115,
121,124,
127,133,
137,142
Table 14
Pin No. Symbol
35,36,
37,72,7
3,74,10
7,108,1
09,110,
Data Sheet
pins should be connected to the recommended fixed value in the table.
KSCEN
TEST
NC
Test Interface (cont’d)
Power Supply
Unused Pins
Symbol
VSS
VDD
I/O, PU/PD Function
I/O, PU/PD Function
I, PD
I, -
I/O, PU/PD Function
SCAN SHIFT ENABLE pin for shift enabling in
scan test. For normal operation this pin should
be left unconnected or connected to V
Reserved for special tests (i.e. IDDQ, MBIST,
etc.). For normal operation this pin must be
connected to V
for IDDQ if set to '1'. Normal operation: '0'.
Common ground rail
31
Common ground rail
Core power supply
SS
. Disables all pull resistances
Rev. 2, 2004-07-28
Pin Description
PEB 20954
PEF 20954
SS
.