HC55185BIM INTERSIL [Intersil Corporation], HC55185BIM Datasheet
HC55185BIM
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HC55185BIM Summary of contents
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TM Data Sheet VoIP Ringing SLIC Family The RSLIC-VoIP family of ringing subscriber line interface circuits (RSLIC) supports analog Plain Old Telephone Service (POTS) in short and medium loop length, wireless and wireline applications. Ideally suited for remote subscriber units, ...
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... Ordering Information (PLCC Package Only) PART NUMBER HIGH BATTERY (VBH) 100V 85V HC55185AIM HC55185BIM HC55185CIM HC55185DIM HC55185ECM HC55185FCM HC5518XEVAL1 Evaluation board platform, including CODEC. Also available in Tape and Reel Device Operating Modes MODE Low Power Standby Forward Active ...
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Absolute Maximum Ratings T A Maximum Supply Voltages ...
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Electrical Specifications Unless Otherwise Specified, T (C) grade, V All AC parameters are specified at 600 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0 . PARAMETER 2-Wire to 4-Wire Level Linearity 4-Wire to ...
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Electrical Specifications Unless Otherwise Specified, T (C) grade, V All AC parameters are specified at 600 2-wire terminating impedance over the frequency band of 300Hz to 3.4kHz. Protection resistors = 0 . PARAMETER LOGIC INPUTS (F0, F1, F2, E0, SWC) ...
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... The table below lists the component value changes required for the HC55185 application circuit. REFERENCE None Offered RS HC55185AIM RP1 HC55185BIM RP2 HC55185CIM CFB HC55185DIM The value based on a 600 termination impedance HC55185ECM and RP1 = RP2 = 49.9 . Design equations are provided to calculate RS for other combinations of termination and protection resistance ...
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Parametric Improvements The most significant parametric improvement of the HC55185 is reduction in Idle Channel Noise. This improvement was accomplished by redistributing gains in the impedance matching loop. The impact to the application circuit is the change in the impedance ...
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Design Equations Loop Supervision Thresholds SWITCH HOOK DETECT The switch hook detect threshold is set by a single external resistor Equation 3 is used to calculate the value 600 The ...
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Low Power Standby Overview The low power standby mode (LPS, 000) should be used during idle line conditions. The device is designed to operate from the high battery during this mode. Most of the internal circuitry is powered down, resulting ...
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Forward Active Overview The forward active mode (FA, 001) is the primary AC transmission mode of the device. On hook transmission, DC loop feed and voice transmission are supported during forward active. Loop supervision is provided by either the switch ...
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When R is exceeded, the device will transition from KNEE constant current feed to constant voltage, resistive feed. The line segment I represents the resistive feed portion of the B load characteristic ----------------------- - B ...
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Reverse Active Overview The reverse active mode (RA, 011) provides the same functionality as the forward active mode. On hook transmission, DC loop feed and voice transmission are supported. Loop supervision is provided by either the switch hook detector (E0 ...
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Logic Control Ringing patterns consist of silent intervals. The ringing to silent pattern is called the ringing cadence. During the silent portion of ringing, the device can be programmed to any other operating mode. The most likely candidates are low ...
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Tip Open Overview The tip open mode (110) is intended for compatibility for PBX type interfaces. Used during idle line conditions, the device does not provide transmission. Loop supervision is provided by either the switch hook detector ( ...
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Uncommitted Switch Overview The uncommitted switch is a three terminal device designed for flexibility. The independent logic control input, SWC, allows switch operation regardless of device operating mode. The switch is activated by a logic low. The positive and negative ...
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Pin Descriptions PLCC SYMBOL 1 TIP TIP power amplifier output. 2 BGND Battery Ground - To be connected to zero potential. All loop current and longitudinal current flow from this ground. Internally separate from AGND but it is recommended that ...
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Plastic Leaded Chip Carrier Packages (PLCC) 0.042 (1.07) 0.042 (1.07) 0.048 (1.22) 0.056 (1.42) PIN (1) IDENTIFIER 0.050 (1.27 0.020 (0.51) MAX 3 PLCS 0.026 (0.66) 0.032 (0.81) 0.045 (1.14) MIN VIEW “A” ...