RS8973 Mindspeed Technologies, RS8973 Datasheet - Page 86

• Manufacturer Part Number: RS8973
• Description: Single-chip Sdsl/hdsl Transceiver
• Manufacturer: Mindspeed Technologies

4.0 Interconnection Information
4.2 DC Blocking Capacitor
4-6
4.2 DC Blocking Capacitor
A DC blocking capacitor is placed in series with the center split primary winding
(line side) of the line transformer to facilitate remote power feed or injection of
sealing current. See
Table 4-6. DC Blocking Capacitor Value
4.3 Voltage Reference and Compensation
Circuitry
Compensation capacitors must be connected between all of the RS8973 voltage
reference pins and analog ground. The voltage reference signals, their associated
pin numbers, and the recommended compensation capacitor values are listed in
Table
Table 4-7. Compensation Capacitor Values
the bias current used in the RS8973. This resistor must be connected between the
RBIAS pin (pin 56) and analog ground. The recommended value of the resistor is
given in
Table 4-8. Bias Current Resistor Value
In addition to the compensation capacitors, an external resistor is needed to set
4-7.
Signal Name
Signal Name
Table
VCOMO
RBIAS
VCOMI
VCCAP
VRXP
VRXN
VTXP
VTXN
Preliminary Information
Component
4-8.
C10
Conexant
Table
4-6.
Pin Number
Pin Number
56
58
57
59
51
52
60
61
Single-Chip SDSL/HDSL Transceiver
Value
1 F
Capacitor Value
Resistor Value
9.53 k
0.22 F
0.22 F
0.22 F
0.22 F
0.22 F
0.22 F
0.22 F
N8973DSD
RS8973