CS61535A データシートの表示（PDF） - Cirrus Logic
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CS61535A Datasheet PDF : 36 Pages
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CS61535A
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 16)
(Note 17) 2.14
2.37
2.6
V
(Note 18)
2.7
3.0
3.3
V
(Note 19)
2.7
3.0
3.3
V
(Note 20)
2.4
3.0
3.6
V
E1 Zero (space) level (LEN2/1/0 = 0/0/0)
75Ω application
120Ω application
(Note 17) -0.237
-
(Note 18)
-0.3
-
0.237
V
0.3
V
Recommended Output Load at TTIP and TRING
-
75
-
Ω
Jitter Added During Remote Loopback
10Hz - 8kHz
8kHz - 40kHz
10Hz - 40kHz
Broad Band
(Note 21)
-
-
-
-
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 12, 16) 12.6
15
17.9
dBm
Power in 2kHz band about 1.544MHz
(Notes 12, 16)
-29
-38
(referenced to power in 2kHz band at 772kHz)
-
dB
Positive to Negative Pulse Imbalance
(Notes 12, 16)
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 12, 16, 22)
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 12, 23)
-
-
50
mA RMS
Notes: 16. Using a 0.47 μF capacitor in series with the primary of a transformer recommended
in the Applications Section.
17. Amplitude measured at the transformer (CS61535A-1:1 or 1:1.26) output across a
75 Ω load for line length setting LEN2/1/0 = 0/0/0.
18. Amplitude measured at the transformer (CS61535A-1:1.26) output across a
120 Ω load for line length setting LEN2/1/0 = 0/0/0.
19. Amplitude measured at the transformer (CS61535A-1:1.15) output across a
100 Ω load for line length setting LEN2/1/0 = 0/1/0.
20. Amplitude measured across a 100 Ω load at the DSX-1 cross-connect for line length settings
LEN2/1/0 = 0/1/1, 1/0/0, 1/0/1, 1/1/0 and 1/1/1 after the length of #22 AWG ABAM equivalent cable
specified in Table 3. The CS61535A requires a 1:1.15 transformer.
21. Input signal to RTIP/RRING is jitter free. Values will reduce slightly if jitter free clock is input to TCLK.
22. 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.
23. 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.
4
DS40F3
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