psf21911 ETC-unknow, psf21911 Datasheet - Page 27

• Manufacturer Part Number: psf21911
• Description: Isdn Echocancellation Circuit Terminal Applications Iec-q
• Manufacturer: ETC-unknow

Table 3
Test-Mode
Master-Reset
Send Single-Pulses
Data-Through
Normal
1)
2)
3)
Table 4
Mode
Pin-Reset
Normal
(Tristate)
Normal
(Open Drain
1)
2)
3)
Semiconductor Group
Used for Quiet Mode and Return Loss measurements
Used for Pulse Mask measurements
Used for Insertion Loss, Power Spectral Density and Total Power measurements
In stand-alone mode and µP mode
Only in stand-alone mode. In µP mode the output driver of pin DOUT is selected via bit DOD in the ADF2
register
External pull-up resistors required (typ.1 k )
Test Modes
DOUT Driver Modes
3)
1)
3)
)
2)
Pin
RES
0
1
1
1)
Bit TM1/
Pin RES
0
1
0
1
Pin
TSP
0
0
0
2)
Pin /
Bit
DOD
x
0
1
27
Bit TM2/
Pin TSP
0
1
1
0
Pin DOUT Output Driver
Value
0
1
0
1
0
1
DOUT in
active time
slot
low
int. pull-up
low
high
low
floating
Operating Modes
DOUT in
passive time
slot
int. pull-up
high Z
floating
PSB 21911
PSF 21911
11.97