le79231 Zarlink Semiconductor, le79231 Datasheet - Page 20

• Manufacturer Part Number: le79231
• Description: Intelligent Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

LINE CARD PARTS LIST
The following list defines the parts and part values required to meet target specification limits for channel i of the line card (i = 1,
2, 3, 4).
Notes:
1.
2.
3.
U1
U2
U5
DLH
RFA
RSA
RT
RRX
RREF
RMGL
RSHB, RSLB
RHLa
RHLb
RHLc
RHLd
CHLb
CHLd
RMT
RLG
RTESTM
RTESTL
CAD
CBATH
CHP
CS
RGFD
RSRB
KR
i
i
i
Required to insure VBH < VBL during startup. May not be needed for some supplies.
DT2i is optional - Should be put if Le79R251 is used.
Value can be adjusted to suit application.
3
i
i
i
i
i
i
i
1
, RFB
i
, RSB
, CBD
i
i
i
i
i
i
, DH
i
i
i
, RSRC
, RMGP
i
, CBATL
i
i
i
i
, DL
i
i
3
Item
i
i
, DT1
i
i
DT2i
2
Le79R231 ISLIC device
VE790 series ISLAC
device
TISP61089
Diode
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Relay
Type
Zarlink Semiconductor Inc.
90.9 kΩ
0.82 mF
100 mA
80.6 kΩ
69.8 kΩ
40.2 kΩ
4.32 kΩ
2.87 kΩ
2.87 kΩ
3.01 kΩ
6.04 kΩ
5 V Coil
200 kΩ
750 kΩ
750 kΩ
100 nF
100 nF
3.3 nF
510 Ω
Value
22 nF
22 nF
50 Ω
1 kΩ
2 kΩ
2 kΩ
20
10%
10%
10%
20%
20%
20%
Tol.
2%
2%
1%
1%
1%
5%
1%
1%
1%
1%
1%
1%
1%
1%
1%
2%
1%
Rating
1/10 W
1/10 W
1/10 W
1/10 W
100 V
1/4 W
1/8 W
1/8 W
1/8 W
1/8 W
1/8 W
1/8 W
100 V
100 V
100 V
100 V
1/4 W
10 V
80 V
10 V
2 W
1 W
1 W
1 W
2 W
codec
Transient Voltage Suppressor, Power
Innovations
50 ns response time
Fusible or PTC protection resistors
Sense resistors
Impedance control resistor
Receive path gain resistor
Current reference setting resistor
Thermal management resistors
Battery Sense Resistors
Feed/Metering resistor
Feed/Metering resistor
Feed/Metering resistor
Feed/Metering resistor
Feed/Metering capacitor - Not Polarized
Feed/Metering capacitor - Ceramic
Metallic Current Sense Resistors
Longitudinal Current Sense Resistors
Metallic test
Longitudinal test
Ceramic
Ceramic
Ceramic
Protector speed up capacitor
1.2 W typ
External Ringing sense resistors
DPDT
Comments