am79231 ETC-unknow, am79231 Datasheet - Page 5

• Manufacturer Part Number: am79231
• Description: Intelligent Subscriber Line Interface Circuit Islic
• Manufacturer: ETC-unknow

Figure 2.
HPA
TMS
HPB
TMN
TMP
VBH
RYE
VBL
AD
SA
SB
BD
R3
R2
R1
BGND
Am79231 Block Diagram
Meas.
Meas.
Fault
Fault
Power amplifiers positive supply
IA
IB
BGND
Management
High Neg.
Bat. sel.
Thermal
Control
600
IB
IA sense
IB sense
600
IA
RD1
RD2
P1
Am79231 Data Sheet
Control Register
A Amplifier
RD3
B Amplifier
+
+
Demux
-
-
P2
Amplifiers
To Power
VREF
C1
P3
Decoder
C2
C3
+
+
-
-
600
600
IA
IA
+
+
−
LD
600
600
IB
IB
VREF
Gain/Level Shift
VCC
Shutdown
Thermal
+
-
β = 0.01
VREF
GND
VREF
CREF
VSAB
RSN
VTX
VLB
IMT
ILG
5