LE57D121BTC Zarlink, LE57D121BTC Datasheet - Page 15

• Manufacturer Part Number: LE57D121BTC
• Description: SLIC 2-CH 67dB 120mA 5V 44-Pin LQFP EP Tray
• Manufacturer: Zarlink

Specifications of LE57D121BTC

• Package: 44LQFP EP
• Number Of Channels Per Chip: 2
• Polarity Reversal: Yes
• Longitudinal Balanced: 67 dB
• Loop Current: 120 mA
• Minimum Operating Supply Voltage: 4.75 V
• Typical Operating Supply Voltage: 5 V
• Typical Supply Current: 9.3 mA

Test Circuits
V
Figure 3. Four-to-Two Wire Insertion Loss and Balance Return Signals
AB
R
V
R
2
2
L
L
L
R
R
G
L
R
L
I
I
L
G
Figure 2. Two-to-Four Wire Insertion Loss
V
I
I
AD
BD
AB
Figure 1. Feed Programming
BRS = 20 log(V
AD
BD
I
AD
BD
L4-2
AD
BD
I
L2-4
1
1
i
i
, AD
, BD
= 20 log(V
Zarlink Semiconductor Inc.
1
1
, AD
, BD
= 20 log(V
DSLIC
2
2
DSLIC
DSLIC
2
2
AGND
AB
TX
RSN
RSN
15
AGND
TX
VTX
VTX
/ V
/ V
RSN
RSN
VTX
VTX
/ V
RX
RX
1
2
1
2
AB
)
)
1
2
1
2
CDC
IREF
)
DET
RD
V
V
TX
i
i
TX
C
DC
R
R
T
R
D
R
RX
T
R
RX
R
REF
50 pF
V
RX