LE87213AFQC Zarlink, LE87213AFQC Datasheet - Page 4

• Manufacturer Part Number: LE87213AFQC
• Description: World Wide xDSL Line Driver 32-Pin QFN EP Tray
• Manufacturer: Zarlink

Specifications of LE87213AFQC

• Package: 32QFN EP
• Transmission Media Type: Cable
• Power Supply Type: Analog
• Typical Operating Supply Voltage: 3.3 V

CONNECTION DIAGRAM
Notes:
1.
2.
PIN DESCRIPTIONS
Pin 1 is marked for orientation.
The
to a copper plane through thermal vias, for proper heat dissipation
Le87213A
Pdown
DDWNP
DDWNP
DISCON
AY
AY
VBAT
VCC
AGND
BGND
N/C
EXPOSED PAD
1
2
, BY
, BY
1
device incorporates an exposed die pad on the underside of its package. The pad acts as a heat sink and must be connected
, Pdown
1
2
1
2
1
Pin
, DDWNN
, DDWNN
, DISCON
2
1
2
2
,
Top View
DDWNN
DDWNP
Control Bits
Differential Downstream
A/B Line Driver
Negative Battery
Power Supply
Analog Ground
Battery Ground
No Connect
Disconnect
N/C
N/C
N/C
N/C
N/C
N/C
Pin Name
1
1
1
2
3
4
5
6
7
8
32
9
10
31
Zarlink Semiconductor Inc.
30
11
Le87213A
Le87220QC
32-pin QFN
EXPOSED PAD
29
12
Isolated
Ground
Ground
Output
Power
Power
28
13
Type
Input
Input
Input
4
(See PCB Layout, on page
27
14
26
15
Active/Pdown mode control bit.
The differential downstream signal from the data AFE is AC
coupled to these pins.
Disables the line completely by pulling it to VCC.
Differential downstream line driver outputs.
Negative power supply.
+3.3 V analog power supply.
Low voltage ground return.
Battery ground return.
Not connected.
Exposed pad on underside of device must be connected to
a heat spreading area. The AGND plane is recommended.
25
16
24
23
22
21
20
19
18
17
AY
N/C
N/C
N/C
N/C
N/C
DDWNN
DDWNP
2
2
2
8.).
Description