LE87220KQC Zarlink, LE87220KQC Datasheet - Page 6

• Manufacturer Part Number: LE87220KQC
• Description: World Wide xDSL Line Driver 24-Pin QFN Tray
• Manufacturer: Zarlink

Specifications of LE87220KQC

• Package: 24QFN
• Transmission Media Type: Copper
• Power Supply Type: Analog
• Typical Operating Supply Voltage: 3.3 V
• Minimum Operating Supply Voltage: 3.13 V
• Maximum Operating Supply Voltage: 3.46 V

ELECTRICAL CHARACTERISTICS
V
Supply Currents and Power Consumption
Values listed in the table below are per line, and include the load power.
Note:
1.
TEST CIRCUIT
Only one of two channels is shown.
Note:
1.
+ 3.3 V
BAT
V
Active
Pdown
Disconnect
Operational
TX
In the Active state, 96.6 mW is dissipated in the loop and 7.5 mW is dissipated in the transformer plus the series drive resistors.
Component values are the same as those listed in the
For device power dissipation, subtract these values from the numbers listed in the table above.
= -52 V, V
+
–
State
C
C
1
2
R
R
10
11
C
8
CC
R
Training at 5 kft 26 AWG cable
Showtime at 5 kft 26 AWG cable,
19.85 dBm
19.85 dBm signal into 100 Ω load
with 2.45:1 transformer
1
= +3.3 V, T
V
DDWNP1
DDWNN1
DWN
AGND
VCC
Control Logic Circuit
Condition
CONTROL
LOGIC1
A
= 25°C unless otherwise specified.
+
–
Le87220
U1
V
–
+
+
–
BIAS
25°C
25°C
25°C
Full
range
25°C
Full
range
Full
range
Zarlink Semiconductor Inc.
T
A
PCB Layout, on page 8
Min
BGND
VBAT
AY1
BY1
6
V
BAT
15.5
15.5
15.5
14.5
14.5
Typ
16
1
(mA)
C
V
9
AY,BY
Max
unless otherwise noted.
–
+
52 V
R
R
2
3
Min
V
C
CC
5
Typ
5.3
5.3
5.3
5.6
5.3
5.3
5.3
(mA)
R
R
SEC1
SEC2
Max
T
1
R
R
PRI1
PRI2
Min
Device Power
C
RING(B)1
TIP(A)1
6
(mW)
Typ
850
824
824
826
772
772
65
V
LOOP
Max
Z
LOOP
Note
1.