CS1880-IB View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS1880-IB Datasheet PDF : 70 Pages
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CS61880
19.3 Digital Characteristics
(TA = -40° C to 85° C; TV+, RV+ = 3.3 V ±5%; GND = 0 V)
Parameter
High-Level Input Voltage
Low-Level Input Voltage
LOOP[7:0] Low-Level Input Voltage
LOOP[7:0] Mid-Level Input Voltage
LOOP[7:0] High-Level Input Voltage
High-Level Output Voltage
IOUT = -400 µA
Low-Level Output Voltage
IOUT = 1.6 mA
Input Leakage Current
Input leakage for LOOP pins
Symbol
Min.
Typ
Max
Units
Note 6 VIH
2.0
-
-
V
Note 6 VIL
-
-
0.8
V
VIHL
-
-
1/3 VCCIO-0.2 V
VIHM 1/3 VCCIO +0.2 1/2 VCCIO 2/3 VCCIO-0.2 V
VIHH 2/3 VCCIO +0.2
-
-
V
Notes 6, 7 VOH
2.4
-
-
V
Notes 6, 7 VOL
-
-
0.4
V
-10
-150
-
+10
µA
+150
µA
19.4 Transmitter Analog Characteristics
(TA = -40° C to 85° C; TV+, RV+ = 3.3 V ±5%; GND = 0 V)
Parameter
Output Pulse Amplitudes
Notes 8, 9, 11
E1 75Ω
E1 120Ω
Ratio of Positive to Negative pulses
Notes 8, 9, 11
Amplitude at center of pulse interval
Width at 50% of nominal amplitude
Pulse Amplitude of a space
Transmit Return Loss
Notes 10, 11, 12
E1 120 Ω
E1 75 Ω
51 kHz to 102 kHz
102 kH to 2048 kHz
2048 kHz to 3072 kHz
Jitter Added by the Transmitter
Notes 10, 13
10 Hz - 8 kHz
8 kHz - 40 kHz
10 Hz - 40 kHz
Broad Band
Transmitter Short Circuit Current per channel
Min.
2.14
2.7
0.95
0.95
-0.3
-0.237
-14
-14
-14
-
-
-
-
-
Typ
2.37
3.0
-
-
-
-
-20
-19
-18
0.010
0.009
0.007
0.015
-
Max
Units
2.6
V
3.3
V
1.05
1.05
0.3
0.237
-
-
-
0.020
0.025
0.025
0.050
50
V
V
dB
UI
mA RMS
54
DS450PP2
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