IL145567

IL145567 INTEGRAL | Alldatasheet

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IL145567 PCM CODEC - FILTER

ORDERING INFORMATION

TA = -40° to 85° C IL145567N is a one-chip PCM-cofidec which converts speech signal into digital form and backwards. The IC is design to operate in synchronous and asynchronous systems and is comprised of: - reference generator; - filters on switching capacitors in transmission and receipt channels ; - two operational amplifiers. The IC does signal companding under the A-low and full differential processing of analogue signals for reduction of noises. Typical dissipated power is 40mW, under reduced power – 1 mW at ±5 V. GSX ANBL M CLKR/ BCLK R/ F SX FSR MCLKX BCLKX PDN CLKSEL Vcc GND VBB VFXI- VFX+ COMP VPO+ 4 8 VPO− VPI VFRO 8 Active RC- filter of LF 5-poles active filter of LF 3-poles filter of HF Reference generator R-D-to-A converter С-D-to-A converter Active RC- filter of LF 5-poles filter of LF Storage/hol ding circuit Multi- plexer Receivin g latch Receiving register Shift register Transmitti ng register Control logic TSx Dx DR Note – COMP – comparator Figure 1 – Block diagram

Pin arrangement in package Pins description Pin № Symbol Description

01 VPO+ Output of power OA

02 GND Common output

03 VPO − Output of power OA

04 VPI Input of power OA

05 VFRO Output of digital signal audio frequency

06 Vcc Supply 5 V

07 FSR Input of receipt cycle synchronisation

08 DR Input of digital data receipt

09 BCLKR/CLKSEL Input of clock oscillator and selector of basic oscillator frequency

10 MCLKR/PDN Input of main clock oscillator and underconsumption control

11 MCLKx Input of main clock oscillator for transmission

12 BCLKx Input of clock oscillator for data transmission (synchronised with

MCLKx)

13 Dx Output of transmitted digital data

14 FSx Input of transmission cycle synchronisation

15 TSx Output of transmission temporary interval indicator

16 ANBL Input of feedback loop control

17 GSx Output of input OA

18 VFxI- Input of transmitted audio frequency (inverting)

19 VFxI+ Input of transmitted audio frequency (noninverting)

20 VBB Supply minus 5 V

Characteristics min max Unit Supply voltage of constant current VCC VBB 4.75 - 4.75 5.25 - 5.25 V Consumption power in active mode (without load) VPI = VBB – 70 Consumption power in sleep mode (without load) VPI = VBB – 5.0 3.0 mW Digital signal strength (VCC = 5V ± 5%, VBB = -5V ± 5%, GNDA = 0V) Characteristics Symbol Min Max Unit Input voltage Low VIL - 0.6 Input voltage High VIH 2.2 - Output voltage Low DX or XTS , IOL = 3.2mA VOL - 0.4 Output voltage High DX, IOH = -3.2mA IOH = -1.6mA VOH 2.4 VCC-0.5 V Input current Low GNDA ≤ Vin ≤ VCC IIL -10 +10 Input current High GNDA ≤ Vin ≤ VCC IIH -10 +10 Output current in the third state GNDA ≤ DX ≤ VCC IOZ -10 +10 mkA

Dynamic characteristics of digital signals (VCC = 5V ± 5%, VBB = -5V ± 5%, values of all signals are indicated relatively to GNDA) Characteristics Symbol min typical max Unit Frequencies of main clock oscillators MCLKX or MCLKR fm – 1.544 2.048 – MHz Min width of high or low pulse MCLKX or MCLKR tw(M) 100 – ns Min width of high or low pulse BCLKX or BCLKR tw(B) 50 ns Min width of low pulse FSX or FSR tw(FL) 50 ns Rise time tr 50 ns Fall time tf 50 ns Ratings of data bit synchronisation BCLKX or BCLKR fB 128 4096 kHz Presetting time of from low BCLKX to high MCLKR tsu(BRM) 50 – ns Presetting time from high MCLKX to low BCLKX tsu(MFB) 20 ns Holding time from low BCLKX (BCLKR) to high FSX (FSR) th(BF) 20 ns Presetting time from high FSX (FSR) to low BCLKX (BCLKR) for long frames tsu(FB) 80 ns Delay time from high BCLKX to setting correct data on DX td(BD) 20 140 ns Delay time from high BCLKX to low XTS td(BTS) 20 140 ns Delay time of inhibition of output data DX relatively to 8th clock pulse BCLKX td(ZC) 50 140 ns Time of setting correct data after entry of signals FSX or BCLKX ( the later of them) td(ZF) 20 140 ns Time of presetting data DR relatively to clock pulse BCLKR edge tsu(DB) 0 – ns Holding time from low BCLKR to switching off DR th(BD) 50 ns Presetting time from high level FSX (FSR) to low level BCLKX (BCLKR) under synchronisation standard Short Frame tsu(F) 50 ns Holding time from low level BCLKX (BCLKR) to low level FSX (FSR) for synchronisation Short Frame th(F) 50 ns Holding time from 2nd period of low level BCLKX (BCLKR) to low level FSX (FSR) for synchronisation Long Frame th(BFI) – 50 ns

Analogue electrical characteristics (VCC = 5V ± 5%, VBB = -5V ± 5%, VFXI- connected to GSX ) Characteristic min typical max Unit Input current (-2.5 V ≤ Vin ≤ 2.5 V) VFXI+, VFXI- – – ± 0.2 mkA Input impedance to GNDA at frequency 1 kHz VFXI+, VFXI- 10 – MOhm Input capacitance VFXI+, VFXI- – 10 pF Input bias voltage GSX Op Amp VFXI+, VFXI- – ± 25 mV Range of input common-mode voltages VFXI+, VFXI- - 2.5 2.5 V Amplification ratio without feedback GSX Op Amp (Rload ≥ 10 kOhm) 75 – dB Attenuation factor of in-phase components on out. VFXI+, VFXI- 65 dB Frequency band of unity gain on out. GSX Op Amp (Rload ≥ 10 kOhm) 1000 kHz Equivalent input noise between out. VFXI+, VFXI- and GSX -20 dBm Load capacitance for GSX Op Amp 0 100 pF Output range of voltages for GSX Rload = 10 kOhm relat. GNDA Rload = 600 Ohm relat. GNDA - 3.5 - 2.8 + 3.5 + 2.8 V Output current (-2.8 V ≤ Vout ≤ 2.8 V) GSX, VFRO ± 5.0 – mA Output impedance on out. VFRO in the frequency range from 0 to 3.4 kHz 1 Ohm Load capacitance for output VFRO 0 500 pF Bias voltage for output VFRO relatively to GNDA – ± 100 mV Noise abatement on supply on transmission (+) – from 0 to 100 kHz; (-) - from 0 to 100 kHz; dB

Analogue transmission characteristics (VCC = 5 V ± 5%, VBB = -5 V ± 5%, GNDA = 0 V, dBm0 = 1.2276Vrms = 4 dBm with load 600 Ohm, FSX = FSR = 8 kHz, BCLKX = MCLKX = 2.048 MHz at synchronous operation, VFXI- connected to GSX) Through channel Channel AD Channel DA Characteristic min max min max min max Unit Change of amplification ratio (relatively to level 0 dBm0 on frequency 1.02 kHz, TA = 25 °С, at VCC = 5V, VBB = -5V) Change of amplification ratio depending on temperature 0 to 70°С –40 to + 85°С ±0.03 ±0.06 ±0.03 ±0.06 dB Change of amplification ratio depending on supply voltage (VCC = 5V, ± 5%, VBB = 5V ±5%) Change of amplification ratio depending on signal strength (relatively to level -10 dBm0 on frequency 1.02 kHz) * from 3 to –40 dB from –40 to –50 dB from –50 to –55 dB -0.4 -0.8 -1.6 0.4 0.8 1.6 -0.2 -0.4 -0.8 0.2 0.4 0.8 -0.2 -0.4 -0.8 -0.2 -0.4 -0.8 dB Total distortions of signal at frequency 1 kHz 3 dBм0 0 ÷ - 30 dBm0 -40 dBm0 -45 dBm0 -55 dBm0 – 33 – 33 – dB Total distortions with pseudonoise as per CCITT G.714 -3 dBm0 6 ÷ - 27 dBm0 -34 dBm0 -40 dBm0 -55 dBm0 27.5 33.1 28.2 13.2 – 28 35.5 33.5 28.5 13.5 – 28.5 34.2 – dB Noise of "silent" channel (for trough channel and channel AD psophometrically weighted) Amplitude-frequency characteristic (AFC). (Relatively to level 0 dBm0 at frequency 1.02 kHz) * 15 Hz 50 Hz 60 Hz 200 Hz from 300 to 3000 Hz 3300 Hz 3400 Hz 4000 Hz 4600 Hz -0.3 -0.70 -1.6 -40 -30 -26 0.3 0.3 -28 -60 -1.0 -0.15 -0.35 -0.8 -40 -30 -26 -0.4 0.15 0.15 -14 -32 -0.15 -0.15 -0.15 -0.15 -0.15 -0.35 -0.8 0.15 0.15 -14 -30 dB Noise level in the frequency range from 300 to 3000 Hz (relatively to level 0 dBm0 at frequency 1.02 kHz under transmission and receipt) * Attenuation of parasitic harmonics beyond the limits of gating frequency VFRO VFRO (Relatively to input signal of frequency 300–3400 Hz and level 0 dBm0) from 4600 to 7600 Hz from 7600 to 8400 Hz from 8400 to 100000 Hz -30 -40 -30 -30 -40 -30 dB

channel Channel AD Channel DA Characteristic min max min max min max Unit Noise of "silent" selected channel (for frequency 8 kHz. Input – GNDA) Absolute delay (on frequency 1600 Hz) – – – 315 – 215 mks Group delay relatively to signal of frequency 1600 Hz 500 ÷ 600 Hz 600 ÷ 800 Hz 800 ÷ 1000 Hz 1000 ÷ 1600 Hz 1600 ÷ 2600 Hz 2600 ÷ 2800 Hz 2800 ÷ 3000 Hz – – – 220 145 105 155 -40 -40 -40 -30 125 175 mks Crosstalk of signal of frequency 1020 Hz for AD or DA – – – -75 – -75 dB Intermodulation distortions of two signals with amplitude from minus 4 to minus 21 dBm0 for the range 300 ÷ 3400 Hz * Parameters of the channels А/D and D/А are guaranteed by measuring through channel parameters Power OA Characteristic min typical max Unit Input current (-1 V ≤ VPI ≤ 1V) VPI – – ± 0.5 mkA Input resistance (-1 V ≤ VPI ≤ 1 V) VPI 5 10 – MOhm Input bias voltage (VPI connected to VPO-) VPI – – ± 50 mV Output resistance VPO–or VPO+ – 1 – Ohm Amplification ratio from VPO– to VPO+ (Rload = 300 Ohm, VPO+ to GNDA, level on VPO– equals 1.77Vrms, 3 dBm0) – -1 – V/V Maximum level 0 dBm0 for better than ± 0.1 dB linearity in the range more than from –10 dBm0 to 3 dBm0 (for Rload between VPO+ and VPO) Rload = 600 Ohm Rload = 1200 Ohm Rload = 10 кOhm 3.3 3.5 4.0 – – Vrms * Noise attenuation on supply on Vcc or VBB (VPO- connected to VPI) VPO–or VPO+ connected to GNDA dB 0 – 4 kHz 4 – 50 kHz Differential noise attenuation on supply on Vcc or VBB (VPO- connected to VPI), VPO– connected to VPO+ , 0 – 50 kHz dB Load capacitance (Rload ≥ 300 Ohm ) VPO+ or VPO– to GNDA 0 1000 * dBm0 = 1.2276Vrms = 4 dBm

td(BTS) tW(M) tW(M) td(ZC) tSU(MFB) tW(B) tW(B) tSU(BRM) tH(BF) tH(F) tSU(F) td(BD) td(ZC) tH(BF) tH(F) tSU(F) tH(BD) tSU(DB) tH(BD) CH1 CH2 CH3 ST1 ST2 ST3 LSB MSB CH1 CH2 CH3 ST1 ST2 ST3 LSB 2 3 4 5 67 8 9 1 2 3 4 5 67 8 9 MSB At Short Frame synchronisation, synchronisation pulses FSx or FSR should have duration equal to duration of clock generator MCLK pulses. Figure 3 – Time diagram at Short Frame synchronisation

tSU(MFB) tSU(BRM) tH(BFI) tSU(FB) td(BD) td(ZC) tH(BF) tH(BFI) tSU(FB) tH(BD) tSU(DB) tH(BD) CH1 CH2 CH3 ST1 ST2 ST3 LSB MSB CH1 CH2 CH3 ST1 ST2 ST3 LSB 2 3 4 5 67 8 9 1 2 3 4 5 67 8 9 tH(BF) td(ZF) td(ZF) td(ZC) MSB At Long Frame synchronisation, synchronisation pulses FSx or FSR should have duration not less than 3 bits of clock generator MCLK. Figure 4 – Time diagram at Long Frame synchronisation

(MS - 001AD) Symbol MIN MAX A 24.89 26.92 B 6.10 7.11 C 5.33 D 0.36 0.56 F 1.14 1.78 G H J 0° 10° K 2.92 3.81 NOTES: L 7.62 8.26 1. Dimensions “A”, “B” do not include mold flash or protrusions. M 0.20 0.36 Maximum mold flash or protrusions 0.25 mm (0.010) per side. N 0.38 Dimension, mm 2.54 7.62 L H M J A B F G D SEATING PLANE N K 0.25 (0.010) M T -T- C