CS61575-IL1 데이터 시트보기 (PDF) - Cirrus Logic
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CS61575-IL1 Datasheet PDF : 44 Pages
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CS61574A CS61575
ANALOG SPECIFICATIONS (TA = -40°C to 85°C; TV+, RV+ = 5.0V ±5%; GND = 0V)
Parameter
Min
Typ
Max
Units
Transmitter
AMI Output Pulse Amplitudes
E1, 75 Ω
E1, 120 Ω
T1, FCC Part 68
T1, DSX-1
(Note 11)
(Note 12) 2.14
2.37
2.6
V
(Note 13)
2.7
3.0
3.3
V
(Note 14)
2.7
3.0
3.3
V
(Note 15)
2.4
3.0
3.6
V
E1 Zero (space) level (LEN2/1/0 = 0/0/0)
1:1 transformer and 75Ω load
1:1.26 transformer and 120Ω load
Recommended Output Load at TTIP and TRING
-0.237
-
0.237
V
-0.3
-
0.3
V
-
75
-
Ω
Jitter Added During Remote Loopback
10Hz - 8kHz
8kHz - 40kHz
10Hz - 40kHz
Broad Band
(Note 16)
-
-
-
-
0.005
0.02
UI
0.008
0.025
UI
0.010
0.025
UI
0.015
0.05
UI
Power in 2kHz band about 772kHz
(Notes 11, 17) 12.6
15
17.9
dBm
Power in 2kHz band about 1.544MHz
(Notes 11, 17)
-29
-38
(referenced to power in 2kHz band at 772kHz)
-
dB
Positive to Negative Pulse Imbalance
(Notes 11, 17)
T1, DSX-1
-
E1 amplitude at center of pulse
-5
E1 pulse width at 50% of nominal amplitude
-5
0.2
0.5
dB
-
5
%
-
5
%
Transmitter Return Loss
(Notes 11, 17, 18)
51 kHz to 102 kHz
8
-
102 kHz to 2.048 MHz
14
-
2.048 MHz to 3.072 MHz
10
-
-
dB
-
dB
-
dB
Transmitter Short Circuit Current
(Notes 11, 19)
-
-
50
mA RMS
Driver Performance Monitor
MTIP/MRING Sensitivity:
Differential Voltage Required for Detection
-
0.6
-
V
Notes: 11. Using a 0.47 µF capacitor in series with the primary of a transformer recommended
in the Applications section.
12. Pulse amplitude measured at the output of a 1:1 or 1:1.26 transformer across a 75 Ω load for
line length setting LEN2/1/0 = 0/0/0.
13. Pulse amplitude measured at the output of a 1:1.26 transformer across a 120 Ω load for line length
setting LEN2/1/0 = 0/0/0.
14. Pulse amplitude measured at the output of a 1:1.15 transformer across a 100 Ω load for
line length setting LEN2/1/0 = 0/1/0.
15. Pulse amplitude measured at the DSX-1 cross-connect across a 100 Ω load for line length settings
LEN2/1/0 = 0/1/1, 1/0/0, 1/0/1, 1/1/0, or 1/1/1 using a 1:1.15 transformer and the length of #22 AWG,
ABAM, or equivalent cable specified in Table 3.
16. Input signal to RTIP/RRING is jitter free. Values will reduce slightly if jitter free clock is input to TCLK.
17. Not production tested. Parameters guaranteed by design and characterization.
18. Return loss = 20 log10 ABS((z1 +z0)/(z1-z0)) where z1 = impedance of the transmitter, and
z0 = impedance of line load. Measured with a repeating 1010 data pattern with LEN2/1/0 = 0/0/0
and a 1:1 transformer terminated with a 75Ω load, or a 1:1.26 transformer terminated with a
120Ω load.
19. Measured broadband through a 0.5 Ω resistor across the secondary of a 1:1.26 transformer
during the transmission of an all ones data pattern for LEN2/1/0 = 0/0/0.
DS154F2
3
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