le9500 Zarlink Semiconductor, le9500 Datasheet - Page 21

• Manufacturer Part Number: le9500
• Description: Igh-voltage Ringing Slic Device For Volp Applications
• Manufacturer: Zarlink Semiconductor

Le9500/Broadcom
The following reference schematic shows the complete Le9500 SLIC device schematic for interface to the Broadcom BCM3367/
3368. This circuit has a natural 700-Ω AC termination impedance. The BCM3367 or MCB3368 has programmable registers to
modify the external 700-Ω termination to achieve worldwide real or complex terminations, as well as to set transmit and receive
gains, and other AC parameters. The BCM3367/3368 codec also drives ringing inputs, sets SLIC operation state, and monitors
NSTAT. The voltage of the battery supply to V
states.
Contact your Legerity account representative for assistance with other applications.
RING
TIP
V
BAT1ext
4.75 k
0.47 µF
C
0.1 µF
50
R
P
50
R
C
R
PT
Ω
PR
TX
GX
Ω
Protector
Ω
0.1 µF
383
C
RT
R
kΩ
RT
D
VBAT1
®
V
RTFLT
DCOUT
PT
V
TXI
VTX
ITR
C
0.22 µF
PR
V
Reference Schematic B
BAT1ext
CF1
PROG
F1
BAT1
C
0.1 µF
VBAT1
CF2
BGND
C
0.1 µF
F2
C
0.1 µF
VBAT2
Le9500
NSTAT B2
V
V
BAT1
BAT2
BAT2
is expected to be properly set and may vary depending upon SLIC operational
Zarlink Semiconductor Inc.
AGND
B1
0.1 µF
C
VCC
B0
V
CC
21
RING
RING
RCVN
RCVP
VITR
V
600
REF
INN
INP
L
Ω
R
100 kΩ
R
162
R
61.9 kΩ
RCVP
VITR
RCVN
kΩ
C
C
0.1 µF
0.1 µF
VTXP
VITR
V
CC
100 kΩ
100 kΩ
R
R
CIN
= 3.3 V
CIP
68 nF
68 nF
C
C
INGN
INGP
301 kΩ
301 kΩ
R
R
VTXP
VTXN
VRXN
R
R
VTXP
APM_LAVDD_1P2
VTXN
VRXP
ING
ING
BROADCOM
D0
REFN
REFP
V
DDCORE
BCM3368
BCM3367
D1
R
10 k
NSTAT
D2
Ω
V
DET
V
DDI/O
CC