PDF SI3232 Data sheet ( Hoja de datos )

Número de pieza	SI3232
Descripción	DUAL PROGRAMMABLE CMOS SLIC
Fabricantes	Silicon Laboratories
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No Preview Available ! Si3232 DUAL PROGRAMMABLE CMOS SLIC WITH LINE MONITORING Features Ideal for customer premise applications Low standby power consumption: <65 mW per channel Internal balanced ringing to 65 Vrms Software programmable parameters: Ringing frequency, amplitude, cadence, and waveshape Two-wire ac impedance DC loop feed (18–45 mA) Loop closure and ring trip thresholds Ground key detect threshold Applications Cable telephony Wireless local loop Description Automatic switching of up to three battery supplies On-hook transmission Loop or ground start operation with smooth/abrupt polarity reversal SPI bus digital interface with programmable interrupts 3.3 V operation GR-909 loop diagnostics and loopback testing 12 kHz/16 kHz pulse metering Lead-free/RoHS compatible packages available Voice over IP/voice over DSL ISDN terminal adapters Ordering Information See page 122. U.S. Patent #6,567,521 U.S. Patent #6,812,744 Other patents pending The Si3232 is a low-voltage CMOS SLIC that offers a low-cost, fully software- programmable, dual-channel, analog telephone interface for customer premise (CPE) applications. Internal ringing generation eliminates centralized ringers and ringing relays, and on-chip subscriber loop testing allows remote line card and loop diagnostics with no external test equipment or relays. The Si3232 performs all programmable SLIC functions in compliance with all relevant LSSGR, ITU, and ETSI specifications; all high-voltage functions are performed by the Si3200 linefeed interface IC. The Si3232 operates from a single 3.3 V supply and interfaces to a standard SPI bus digital interface for control. The Si3200 operates from a 3.3 V supply as well as high-voltage battery supplies up to 100 V. The Si3232 is available in a 64-pin thin quad flat package (TQFP), and the Si3200 is available in a thermally-enhanced 16-pin small-outline (SOIC) package. Functional Block Diagram CS SCLK SDI SDO VRXPa VRXNa VTXPa VTXNa VTXPb VTXNb VRXPb VRXNb VCM PCLK INT RESET SPI Control Interface PLL FSYNC Si3232 Si3200 Linefeed Interface TIP RING Si3200 Linefeed Interface TIP RING Preliminary Rev. 0.96 2/05 Copyright © 2005 by Silicon Laboratories Si3232 This information applies to a product under development. Its characteristics and specifications are subject to change without notice. Free Datasheet http://www.datasheet4u.com/ 1 page Si3232 Table 2. Recommended Operating Conditions Parameter Symbol Test Min* Typ Max* Unit Condition Ambient Temperature Ambient Temperature TA K-grade 0 25 70 oC TA B-grade –40 25 85 oC Si3232 Supply Voltage VDD1–VDD4 3.13 3.3 3.47 V Si3200 Supply Voltage High Battery Supply Voltage, Si3200 VDD VBATH 3.13 3.3 3.47 V –15 — –99 V Low Battery Supply Voltage, Si3200 VBATL –15 — VBATH V *Note: All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values apply at nominal supply voltages and an operating temperature of 25 oC unless otherwise stated. Preliminary Rev. 0.96 5 Free Datasheet http://www.datasheet4u.com/ 5 Page Si3232 Table 6. Monitor ADC Characteristics (VDD, VDD1–VDD4 = 3.13 to 3.47 V, TA = 0 to 70 °C for K-Grade, –40 to 85 °C for B-Grade) Parameter Symbol Test Condition Min Typ Resolution —8 Differential Nonlinearity DNL — ±0.75 –1.0 — Integral Nonlinearity INL — ±0.6 Gain Error — ±0.1 Max — — +1.5 ±1.5 ±0.25 Unit Bits LSB LSB LSB LSB Table 7. Si3200 Characteristics (VDD = 3.13 to 3.47 V, TA = 0 to 70 °C for K-Grade, –40 to 85 °C for B-Grade) Parameter Symbol Test Condition TIP/RING Pulldown Transistor Saturation Voltage VCM TIP/RING Pullup Transistor Saturation Voltage VOV Battery Switch Saturation Impedance RSAT OPEN State TIP/RING Leakage Current ILKG Internal Blocking Diode Forward Voltage VF Notes: 1. VAC = 2.5 VPK, RLOAD = 600 Ω. 2. IOUT = 60 mA VRING – VBAT (Forward), VTIP – VBAT (Reverse) ILIM = 22 mA, IABIAS = 4 mA1 ILIM = 45 mA, IABIAS = 16 mA1 GND – VTIP (Forward) GND – VRING (Reverse) ILIM = 22 mA1 ILIM = 45 mA1 (VBAT – VBATH)/IOUT (Note 2) RL = 0 Ω VBAT – VBATL (Note 2) Min ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ Typ Max 3⎯ 4— 3⎯ 4— 15 ⎯ ⎯ 100 0.8 ⎯ Unit V V V V W µA V Preliminary Rev. 0.96 11 Free Datasheet http://www.datasheet4u.com 11 Page

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