CS4298 Datasheet, PDF (41/52 Pages) Cirrus Logic – SoundFusion Audio/Modem Codec 97 (AMC 97)

CS4298
such that digital ground plane lies underneath these signals (on the internal ground layer) from the
AC ’97 Controller continuously to the CS4298.
7.7 Hybrid Interface
Figure 16 indicates the required components for the secondary side of the hybrid circuity required
for the CS4298. The multiple configurations required for the line interface are beyond the scope of
this document. Please contact Crystal applications engineering for additional information.
.
TX+
RX+
Caa
1000 pF
RX-
TX-
Rb1
10 k
1%
R2_1
6650
1%
Rb2
10 k
1%
Co_lpf
0.033 µF
R2_2
6650
1%
Rt1
140
1%
Cblock
47 µF
T1
671-8039
MIDCOM
Rt2
140
1%
Line
Interface
Line
Figure 16. Hybrid Circuit Secondary
DS315PP2
41