AM79R79-3JC AMD (ADVANCED MICRO DEVICES), AM79R79-3JC Datasheet - Page 18

• Manufacturer Part Number: AM79R79-3JC
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79R79-3JC

• Lead Free Status / RoHS Status: Supplier Unconfirmed

APPLICATION CIRCUIT
18
RING
Assumptions:
1. 1.25 CF
2. 25 mA I
3. 100 mA Ringing Current Limit
Note:
The input should be 50% duty cycle CMOS-compatible input.
TIP
R
R
FA
FB
Bat1
= 50
= 50
1.5 µF
LOOP
C
RT
BAT1
BAT2
K1
G
K2
61089
TISP
12 k
C
R
K1
K2
BX
RT2
A
A
D
D
= 2.2 nF
1
2
C
AX
0.1 µF
0.1 µF
515 k
= 2.2 nF
18 nF
R
C
4. 5.2 k
5. 925
6. 600
RT1
HP
600
I. Application Circuit
RTRIP2
A(TIP)
HPA
HPB
B(RING)
RTRIP1
VBAT1
VBAT2
P R E L I M I N A R Y
RYOUT1
RYOUT2
RYE
BGND
Ringing Loop Threshold
Two-wire Impedance,
Z
High Battery Loop Threshold
Am79R79 Data Sheet
L
RINGIN
AGND/
DGND
RSGH
VNEG
RSGL
RDCR
B2EN
VCC
RSN
DET
VTX
RDC
RD
C1
C2
C3
D1
D2
E1
15 k
50 k
R
R
R
66 k
DC2
DCR1
R
T2
R
T1
D
C
T
+5 V
C
0.33 µF
SLEW
125 k
125 k
50 k
R
C
150 k
R
7. G
8. –70 V Vbat1, –24 V Vbat2
10 nF
open
R
DC1
C
DCR
SGH
820 nF
SLEW
–5 V
DC
42L
250 k
R
= 1
R
RX
open
SGL
R
DCR2
15 k
V
V
TX
RX
See Note.
BATTERY
GROUND
GROUND
GROUND
ANALOG
DIGITAL