CS61880-IQZ Cirrus Logic Inc, CS61880-IQZ Datasheet - Page 50

• Manufacturer Part Number: CS61880-IQZ
• Description: IC Octal E1 Line Interface Unit
• Manufacturer: Cirrus Logic Inc

18. APPLICATIONS
50
Notes:1) Required Capacitor between each TV+, RV+, VCCIO and TGND, RGND, GNDIO respec-
120
Cable
Cable
NC
75
0.1 F
2) Common decoupling capacitor for all TVCC and TGND pins.
GNDIO
R1 ( )
R2 ( )
tively.
Component
+3.3V
RGND
+3.3V
+
0.1 F
Note 1
VCCIO
CBLSEL
Figure 16. Internal RX/TX Impedance Matching
One Channel
CS61880
E1 75 Coaxial Cable
+3.3V
RV+
15
15
TV+
0.1 F
Note 1
R R I N G
T R I N G
R T I P
T T I P
REF
E1 120 Twisted Pair Cable
+
0.1 F
TGND
13.3k
+
68 F
Note 2
GND
15
15
R1
R2
T2 1:1.15
T1 1:2
TRANSMIT
CS61880
RECEIVE
LINE
DS450PP3
LINE