CS61577-IL1R Cirrus Logic Inc, CS61577-IL1R Datasheet - Page 18

• 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

the register. In either mode, a reset will set all reg-
isters to 0 and force the oscillator to its center
frequency before initiating calibration. A reset
will also set LOS high.
Power Supply
The device operates from a single +5 Volt supply.
Separate pins for transmit and receive supplies
provide internal isolation. These pins should be
connected externally near the device and decou-
pled to their respective grounds. TV+ must not
exceed RV+ by more than 0.3V.
Decoupling and filtering of the power supplies is
crucial for the proper operation of the analog cir-
cuits in both the transmit and receive paths. A 1.0
μF capacitor should be connected between TV+
and TGND, and a 0.1 μF capacitor should be con-
nected between RV+ and RGND. Use mylar or
ceramic capacitors and place them as closely as
possible to their respective power supply pins. A
68 μF tantalum capacitor should be added close
to the RV+/RGND supply. Wire-wrap bread-
boarding of the line interface is not recommended
because lead resistance and inductance serve to
defeat the function of the decoupling capacitors.
Confirm Optimum
Schematic & Layout
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