CS61884-IB View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS61884-IB Datasheet PDF : 71 Pages
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CS61884
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, 10
E1 75Ω
E1 120Ω
T1/J1 100Ω
Ratio of Positive to Negative pulses
T1/J1 100 Ω
Notes 8, 9, 10
E1, amplitude at center of pulse interval
E1, width at 50% of nominal amplitude
Pulse Amplitude of a space
T1/J1 100 Ω
E1 120 Ω
E1 75 Ω
Power in 2 kHz band about 772 kHz
Notes 11, 12
(T1/J1 100 Ω only)
Power in 2 kHz band about 1.544 MHz
Notes 11, 12
(referenced to power in 2 kHz band at 772 kHz, T1/J1 100 Ω only)
Transmit Return Loss - E1
Notes 11, 12, 13
51 kHz to 102 kHz
102 kH to 2048 kHz
2048 kHz to 3072 kHz
Transmit Return Loss - T1/J1
Notes 11, 12, 13
51 kHz to 102 kHz
102 kHz to 2048 kHz
2048 kHz to 3072 kHz
Jitter Added by the Transmitter
Notes 11, 14
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
2.4
0.95
0.95
0.95
-0.15
-0.3
-0.237
12.6
-29
- 14
- 14
- 14
- 14
- 14
- 14
-
-
-
-
-
Typ
2.37
3.0
3.0
-
-
-
-
-
-
-
-
- 20
- 19
- 18
- 19
- 19
- 18
0.010
0.009
0.007
0.015
-
Max
2.6
3.3
3.6
1.05
1.05
1.05
0.15
0.3
0.237
Units
V
V
V
V
V
V
-
dBm
-
-
-
-
-
-
-
0.020
0.025
0.025
0.050
50
dBm
dB
dB
UI
mA RMS
DS485F1
55
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