AM79213 Legerity, AM79213 Datasheet - Page 39

• Manufacturer Part Number: AM79213
• Description: (AM79C203/031 / AM79213) PCM CODEC
• Manufacturer: Legerity

ASLIC/ASLAC DEVICES LINECARD SCHEMATIC
B
TEST
BUS
Notes:
1. This application ckt is valid only to 2.2 V metering.
2. If the RSB sense resistor is moved so that it is exposed to the ringing voltage, see the discussion in the Line Fault
A
Alarm section.
K2B
K2A
E
S
T
R
T
VCC
BATTERY
C.O.
RFA
+
RING BUS
K1B
RGFD1
(32-Pin PLCC)
CS
K1
K2
K3
K4
ASLIC
K1A
+
RSB
RFB
3
4
Polarized
Capacitor
CBD
U3
RSA
1
2
Figure 7. ASLIC/ASLAC Typical Linecard Schematic
CHP
CAD
+
+
+
SA
AD
RINGOUT
RY1OUT
RY2OUT
RY3OUT
HPA
HPB
SB
BD
BGND
Non polarized
Capacitor
+ indicates bias
TMG
RSR1
VCC GND
+5 V
RSR2
U1
ASLIC/ASLAC Products
VLBIAS
RTMG
RSVD
QBAT
VREF
VBAT
ISUM
BAL1
CBAT
RSN
VDC
VTX
IDIF
IDC
C5
C4
C3
C2
C1
*These pins are unavailable for 32-pin PLCC option.
(32-/44-Pin PLCC)
NC
+
RBAT1
VREF
(–)
ASLIC
D1
Battery
Ground
CDC1
CM
C.O.
BATTERY
RM
CB
CDIF
+
RAB
RBAT2
RT
RRX
Analog
Ground
+5 V
VLBIAS
VCCA VCCD
AGND
VREF
IDC
VOUT
VM
VIN
ISUM
IDIF
IAB
*I/O4
*I/O3
I/O2
I/O1
C2
C1
IBAT
IRTA
+5 V
IRTB
U2
Digital
Ground
*TSCB
DGND
MCLK
TSCA
PCLK
DCLK
*DRB
*DXB
IREF
DRA
DXA
DI/O
RST
INT
CS
FS
RREF
Dual PCM Highway
(32-/44-Pin PLCC)
MPI & PCM
Highway
39