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Número de pieza	SI3000
Descripción	Voiceband Codec with Microphone/Speaker Driver
Fabricantes	Silicon Laboratories
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No Preview Available ! Si3000 VOICEBAND CODEC WITH MICROPHONE/SPEAKER DRIVE Features Complete voice codec solution includes the following: 84 dB ADC Dynamic Range 84 dB DAC Dynamic Range 4–12 kHz Sample Rates 30 dB Microphone Pre-Amp Programmable Input Gain/ Attenuation: –34.5 dB to 12 dB Programmable Output Gain/ Attenuation: –34.5 dB to 12 dB Support for 32 Ω Headphones 3:1 Analog Input Mixer 3.3–5.0 V Power Supply Direct Serial Interface to DSPs Direct Connection to Si303x/44/56, serial interface DAA chipsets Low profile 16-Pin SOIC Package Lead-free / RoHS-compliant package available Applications Modem Voice Channel (DSVD) Telephony Speech Processing General Purpose Analog I/O Description The Si3000 is a complete voice band audio codec solution that offers high integration by incorporating programmable input and output gain/ attenuation, a microphone bias circuit, handset hybrid circuit, and an output drive for 32 Ω headphones. The Si3000 can be connected directly to the Si3034, Si3035, Si3044 and Si3056 North American and international DAA chipsets through its daisy-chaining serial interface. The device operates from a single 3.3 to 5 V power supply and is available in a 16-pin small outline package (SOIC). Functional Block Diagram Ordering Information: See page 30. Pin Assignments Si3000 SPKRR MBIA S HDST SDI SDO FSY NC MCLK SCLK 1 2 3 4 5 6 7 8 16 SPKRL 15 LINEO 14 GND 13 VA 12 VD 11 LINEI 10 MIC 9 RESET Si3000 0/+10/+20/+30 dB MBIAS MIC MCLK SCLK omFSYNC .cSDI SDO sheet4uRESET Prog Gain/ Attenuator Digital Interface Prog Gain/ Attenuator ADC DAC 0/+10/+20 dB Handset Hybrid 0/–6/–12/–18 dB Headphone Driver 0/–6/–12/–18 dB LINEI HDST SPKRR SPKRL LINEO www.dataRev. 1.2 6/05 Copyright © 2005 by Silicon Laboratories Si3000 1 page Si3000 Table 4. AC Characteristics (VA, VD = 5 V ±5% or 3.3 V ±10%, TA = 0 to 70°C) Parameter Symbol Test Condition Min Typ Max Unit ADC Resolution ADC Dynamic Range1,2 ADC Total Harmonic Distortion3 — 16 — Bits ADCDR VIN = 1 kHz, –3 dB 80 84 — dB ADCTHD VIN = 1 kHz, –3 dB, MIC/LINEI — –80 –62 dB VA, VD = 3.3 V ±10% ADC Total Harmonic Distortion3 VIN = 1 kHz, –3 dB, HDST ADCTHD VIN = 1 kHz, –3 dB, MIC/LINEI — — –80 –62 –80 –76 dB VA, VD = 5 V ±5% ADC Full Scale Level (0 dB gain)4 ADC Programmable Input Gain VIN = 1 kHz, –3 dB, HDST — –80 –71 VRX Vin = 1 kHz —1 — Vrms –34.5 — 12 dB ADC Input Gain Step Size ADC Freq Response5 ADC Freq Response5 ADC Freq Response Line In Preamp Gain — 1.5 — dB FRR Low –3 dB corner — 33 — Hz FRR 300 Hz –0.1 — 0 dB FRR 3400 Hz –0.2 — 0 dB — 0/10/20 — dB Mic In Preamp Gain — 0/10/20/ — 30 dB ADC Input Resistance 0 dB Preamp Gain — 20 — kΩ ADC Input Capacitance — 15 — pF ADC Gain Drift DAC Resolution DAC Dynamic Range1,2 DAC Total Harmonic Distortion3 AT VIN = 1 kHz DACDR VIN = 1 kHz, –6 dB DACTHD VIN=1 kHz,–6 dB,LINEO,600 Ω — — 80 — 0.002 16 84 –76 — dB/°C — Bits — dB –60 dB VA, VD = 3.3 V ±10% DAC Total Harmonic Distortion3 VIN=1 kHz,–6 dB, SPKR, 60 Ω VIN=1 kHz,–6 dB, HDST, 600 Ω DACTHD VIN=1 kHz,–3 dB,LINEO,600 Ω — — — –72 –60 –80 –70 –76 –65 dB VA, VD = 5 V ±5% VIN=1 kHz,–3 dB, SPKR, 60 Ω VIN=1 kHz,–3 dB, HDST, 600 Ω — — –72 –65 –80 –76 DAC Full Scale Level (0 dB gain) DAC Programmable Output Gain VRX — –34.5 1 — — Vrms 12 dB Notes: 1. DR = VIN + 20 log (RMS signal/RMS noise). Measurement bandwidth is 300 to 3400 Hz. Valid sample rate ranges between 4000 and 12000 Hz. 2. 0 dB setting for analog and digital attenuation/gain. 3. THD = 20 log (RMS distortion/RMS signal). Valid sample rate ranges between 4000 and 12000 Hz. 4. At 0dB gain setting, 1 Vrms input corresponds to -1.5 dB of full scale digital output code. 5. These characteristics are determined by external components. See Figure 13. 6. With a 600 Ω load. Output starts clipping with half of full scale digital input, which corresponds to a 0.5 Vrms output. Rev. 1.2 5 5 Page Si3000 Input Frequency - Hz Figure 7. IIR Receive Filter Response Input Frequency - Hz Figure 10. IIR Transmit Filter Passband Ripple Input Frequency - Hz Figure 8. IIR Receive Filter Passband Ripple Input Frequency - Hz Figure 11. IIR Receive Group Delay Input Frequency - Hz Figure 9. IIR Transmit Filter Response Input Frequency - Hz Figure 12. IIR Transmit Group Delay Rev. 1.2 11 11 Page

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