U4089B-PFN ATMEL [ATMEL Corporation], U4089B-PFN Datasheet - Page 14

• Manufacturer Part Number: U4089B-PFN
• Description: Monolithic Integrated Feature Phone Circuit
• Manufacturer: ATMEL [ATMEL Corporation]

U4089B-P Control
14
U4089B-P
AFS = Acoustical feedback-suppression control
AGA = Automatic gain adjustment
TXACL = Transmit anti-clipping control
ES = External supply
0
Z
1
0
0 to Z
1 to Z
1
Logic-level
0 = < (0.3 V)
Z = > (1 V) < (V
1 = > (V
MP
MUTX
MIC 1/2 transmit enabled receive enable
AFS = on
AGA = on
TXACL = on
DTMF transmit enabled receive enable
AFS = on
AGA = on
TXACL = on
DTMF transmit enabled DTMF to receive enable
AFS = off
AGA = off
TXACL = off
IMPSEL
Line impedance = 600
TXA = on
ES = off
Line impedance = 600
TXA = off
ES = on
Line impedance = 900
TXA = off
ES = on
Line impedance = 900
TXA = on
ES = off
- 0.3 V)
MP
- 1 V) or (open input)
MODE
Speech
For answering machine
DTMF dialling
MODE
Speech
Transmit mute
Transmit mute
Speech
4518A–CORD–05/02