msm7603 Oki Semiconductor, msm7603 Datasheet
msm7603
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msm7603 Summary of contents
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... MSM7602. The MSM7603B I/O interface allows switching between m-law PCM and A-law PCM. The MSM7603/7603B is a low-power CMOS IC device for canceling echo (in an acoustic system or telephone line) generated in a speech path. Echo is canceled, in digital signal processing, by estimating the echo path and generating a pseudo echo signal ...
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... Non–linear/ RIN S/P Linear Howling Double Talk Detector Detector Linear/ SOUT P/S Non–linear PWDWN Clock Generator PLL CLKIN SCKO * For MSM7603B only ATT Gain Power Adaptive Calculator FIR Filter (AFF) – Center + ATT Clip Mode Selector HD m/A SYNCO NLP HCL ADP ATT GC ...
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... SCK RST 8 PWDWN [m/A CLKIN 12 V (PLL (PLL Pins shown in brackets apply to MSM7603B connect pin 28-Pin Plastic SSOP MSM7603/7603B SOUT 26 ROUT 25 SIN 24 RIN NC[TEST ATT 18 SCKO ...
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... This pin uses the external SYNC or SYNCO. Inputs the PCM codec transmit/receive sync signal (8 kHz). This is the clock input pin for transmit/receive serial data uses the external SCK or the SCKO. Input the PCM codec transmit/receive clock (64 to 2048 kHz). MSM7603/7603B Description 4/20 ...
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... This function is used to cancel acoustic echoes. "L": Howling detector ON "H": Howling detector OFF Used for MSM7603B only. I This is the input pin for m-law PCM/A-law PCM interface select signal. "L": A-law PCM interface " ...
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... ATT OFF "L": ATT ON "L" is recommended for performing echo cancellation. O This pin is for MSM7603B only and not used. Should be left open. In MSM7603 pin. I This is the receive serial data input pin. Input the PCM signal synchronized to SYNC and SCK. ...
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... DD V — — — — Symbol Condition V — — — — — MSM7603/7603B Rating Unit –0 –0 0 –55 to +150 ˚ 2 3 Min. Typ. Max. Unit 2.7 3.3 3.6 V — 0 — V 2.0 — ...
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... OZH OZL — I DDO PWDWN = "L" I DDS C — — LOAD MSM7603/7603B = 2 3 –40˚C to +85˚C) DD Min. Typ. Max. Unit 2.2 — — 0.4 mA — 0 –1 –0.1 — mA — 0 –1 – ...
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... IN (5 kHz band white noise (echo return loss) L RES = ATT, GC, NLP: OFF R = –10 dBm0 IN (5 kHz band white noise ATT, GC, NLP: OFF MSM7603/7603B Min. Typ. Max. Unit — 30 — dB — — 9/20 ...
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... DPE 10 — — WPR t 20 — — DSR t 20 — — DHR t 0 — — DTS t 160 — — DTH MSM7603/7603B (Ta = –40˚C to +85˚ Unit Min. Typ. Max. — 19.2 — MHz 17.5 — 20.0 — 52.08 — ns 50.0 — 57.14 40 — 20.8 — ...
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... CO CO SCKO t t DCC DCC SYNCO t WSO Serial Input Timing SCK SYNC t WSY SIN MSB RIN MCH MCL t DCM t DCO t CYO SCK SCK t CYC MSM7603/7603B DCM t DSC LSB MSB 0 7 11/20 ...
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... Power Down Timing PWDWN t DPS Internal Operation RST SCK SCK t CYC *Reset timing can be asynchronous. t DIT Initialization Processing Start * INT is invalid during the shaded interval Power Down Invalid MSM7603/7603B t DSC High-Z LSB MSB DPE Processing Start t WPR 12/20 ...
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... Semiconductor Control Pin Load-in Timing t WR RST t DHR t DSR NLP, HCL, HD, ATT, ADP, GC SCK SYNC SIN MSB 7 RIN NLP, HCL, HD, ATT, ADP CYC DTS MSM7603/7603B LSB MSB DTH 13/20 7 ...
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... Semiconductor HOW TO USE THE MSM7603/7603B The MSM7603/7603B cancels, based on the RIN signal, the echo which returns to SIN. Connect the base signal to the R side and the echo-generated signal to the S side. Connection Methods According to Echoes Example 1: Canceling acoustic echo (to handle acoustic echo from line input) ...
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... E.R. ATT, GC, NLP = OFF Power supply voltage m-law CODEC interface). For the DD 0 dBm0 = 0.85 Vrms = 0.8 dBm (600 W) 0 dBm0 = 0.35 Vrms = –6.9 dBm (600 W) 0 dBm0 = 0.5 Vrms = –3.8 dBm (600 W) MSM7603/7603B 0 RIN input level [dBm0 15/20 ...
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... Semiconductor Measurement System Block Diagram White noise generator RIN 5 kHz Level meter SOUT RIN ROUT MSM7603 MSM7603B SOUT SIN Power supply voltage 5 V 2ch CODEC MSM7533 MSM7603/7603B T D Delay Echo delay time ATT (Echo Return Loss) 16/20 ...
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... ( C1=1 mF R5=20 kW C2=10 mF R6=20 kW C3=0.1 mF R7=2.2 kW C4=0.1 mF R8=10 kW R10=10 kW MSM7603/7603B R5 C5 Line input R6 Line output C10 C11 (AG SIN 26 ROUT 4 SYNC 5 SCK 16 SYNCO 18 SCKO 9 PWDWN 8 RST 12 (P) CLKIN ( ...
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... After power ON, be sure to reset the device. 8. After the power down mode is released (when PWDWN pin is changed to a "1" from a "0"), be sure to reset the device this canceler is used to cancel acoustic echoes, an echo attenuation may be less than 30 dB. MSM7603/7603B 18/20 ...
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... ROUT. ERL = (ROUT level) – (SIN level of the ROUT signal which returns as an echo) [dB] If ERL is positive (ROUT > SIN), acts as an attenuator. If ERL is negative (ROUT < SIN), acts as an amplifier. PHS : Personal Handyphone System MSM7603/7603B 19/20 ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM7603/7603B (Unit : mm) Package material Epoxy resin ...