CS61577-IL1R Cirrus Logic Inc, CS61577-IL1R Datasheet - Page 27

• Manufacturer Part Number: CS61577-IL1R
• Description: Network Controller & Processor ICs IC T1/E1 Low PWR Line Interface Unit
• Manufacturer: Cirrus Logic Inc

Specifications of CS61577-IL1R

• Product: Framer
• Number Of Transceivers: 1
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC-28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Transformers
Recommended transmitter and receiver trans-
former specifications are shown in Table A2. The
transformers in Table A3 have been tested and
recommended for use with the CS61577. Refer to
the "Telecom Transformer Selection Guide" for
detailed schematics which show how to connect
the line interface IC with a particular transformer.
Ratio(s)
Secondary Leakage
1:2CT
1:2CT
1:2CT
1:2CT
Turns
Primary Leakage
dual
dual
Interwinding
Turns Ratio
ET-constant
Capacitance
Inductance
Inductance
Inductance
Primary
Table A2. Transformer Specifications
Pulse Engineering
Pulse Engineering
Pulse Engineering
Pulse Engineering
Manufacturer
Bel Fuse
Bel Fuse
Bel Fuse
Schott
600 μH min. @ 772 kHz
1.3 μH max. @ 772 kHz
0.4 μH max. @ 772 kHz
16 V-μs min. for T1
12 V-μs min. for E1
1:2 CT ± 5%
23 pF max.
Table A3. Recommended Transformers
0553-0013-HC
Part Number
S553-0013-03
0553-0013-1J
PE-65351
67129300
PE-64951
PE-65761
PE-65835
Selecting an Oscillator Crystal
Specific crystal parameters are required for
proper operation of the jitter attenuator. It is rec-
ommended that
Transmit Side Jitter Attenuation
In some applications it is desirable to attenuate
jitter from the signal to be transmitted. A
CS61577 in local loopback mode can be used as a
jitter attenuator. The inputs to the jitter attenuator
are TPOS, TNEG, TCLK. The outputs from the
jitter attenuator are RPOS, RNEG and RCLK.
Line Protection
Secondary protection components can be added
to provide lightning surge and AC power-cross
immunity. Refer to the "Telecom Line Protection
Application Note" for detailed information on the
different electrical safety standards and specific
application circuit recommendations.
EN60950, EN41003 approved
1.5 kV through-hole, single
1.5 kVsurface-mount, dual
1.5 kV through-hole, dual
3 kV through-hole, single
Package Type
.
7