CS61310 Cirrus Logic, Inc., CS61310 Datasheet - Page 5

• Manufacturer Part Number: CS61310
• Description: Long Haul T1 Line Interface Unit
• Manufacturer: Cirrus Logic, Inc.

ANALOG CHARACTERISTICS
Notes: 8. Using a 0.47 µF capacitor in series with the primary of a transformer recommended in the Applications
DS440PP2
Transmitter
AMI Output Pulse Amplitudes
External Equalizer Pulse Amplitude
Transmitter Output Impedance
Transformer turns ratio = 1:2
Transformer turns ratio = 1:1.5
Jitter Added by the Transmitter
Power in 2 kHz band about 772 kHz
Power in 2 kHz band about 1.544 MHz
(referenced to power in 2 kHz band at 772 kHz)
Positive to Negative Pulse Imbalance
Transmitter Short Circuit Current
Receiver
RTIP/RRING Input Impedance
Sensitivity Below DSX (0 dB = 3.0 V)
Loss of Signal Threshold
Data Decision Threshold
Allowable Consecutive Zeros before LOS
Receiver Input Jitter Tolerance(Note 16) T1:10 kHz - 100 kHz
10. Pulse amplitude measured at the DSX-1 Cross-Connect for all line length settings from LEN2/1/0 =
11. Assuming that jitter free clock is input to TCLK.
12. Not production tested. Parameters guaranteed by design and characterization.
13. Measured broadband through a 0.5
14. Data decision threshold established after the receiver equalizer filters pulse overshoot and undershoot.
15. Jitter tolerance for 0 dB input signal level. Jitter tolerance increases at lower frequencies. See Figure 7.
16. See Receiver Jitter Tolerance Plot, Figure 7.
9. Pulse amplitude measured at the secondary side of the transformer across a 100
Section.
setting LEN2/1/0 = 0/1/0.
0/1/1 to LEN2/1/0 = 1/1/1.
during the transmission of an all ones data pattern.
Parameter
(Notes 12,14)
T1, (FCC Part 68) (Note 9)
T1, DSX-1 (Note 10)
External Equalizer
T1, (FCC Part 68)
(TA = -40 C to 85 C; TV+, RV+ = 5.0 V 5%; GND = 0 V)
10 Hz - 40 kHz
8 kHz - 40 kHz
(Note 12) 1 Hz
10 Hz - 8 kHz
(Notes 11,12)
(Notes 8, 12)
(Notes 8, 12)
(Notes 8, 12)
(Notes 8, 13)
resistor across the secondary of the transmitter transformer
Broad Band
T1, DSX-1
(Note 12)
(Note 8)
DSX1
FCC
12.6
Min
160
138
-29
-40
2.7
2.4
4.8
0.4
30
-
-
-
-
-
-
-
-
0.015
0.015
0.015
0.020
Typ
20k
175
3.0
3.0
5.6
1.5
-38
0.2
-42
44
44
44
15
50
50
-
-
-
-
-
Max
17.9
190
3.3
3.6
6.4
0.5
50
-
-
-
-
-
-
-
-
-
-
-
load for line length
CS61310
% of peak
% of peak
mA RMS
Units
dBm
mV
bits
dB
dB
dB
dB
UI
UI
UI
UI
UI
UI
V
V
V
5