MSM6722 Oki Semiconductor, MSM6722 Datasheet
MSM6722
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MSM6722 Summary of contents
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... MSM6722 Pitch Control IC for The Speech Signal GENERAL DESCRIPTION The MSM6722 converts in real-time the pitch of the speech signal in a range of one octave upward or downward. Two pitch control methods can be selected. One is to change the pitch in 17 steps by two switch inputs, and the other is to select one of 16 steps by four binary input lines. ...
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... Built-in 8-bit AD converter • Built-in 9-bit DA converter • Speech pitch alterable in 17 steps (including the no pitch change step) • Master clock frequency at 4 MHz • single power supply • Package : 24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM6722GS-K) Chip MSM6722 2/18 ...
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... FOUT LPF ADC LPF DAC TIMING & CONTROL RESET DGND AGND DAO 8 17 SGC 16 MIN 15 MOUT 14 LIN 12 13 LOUT DD 24-Pin Plastic SOP MSM6722 DGND AGND TEST 8 VOICE CHANGER CIRCUIT 9 SG CIRCUIT SGC SG DD 3/18 ...
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... Crystal oscillator connecting pin. When using the external clock, use I this pin as the input. Crystal oscillator connecting pin. When using the external clock, this O pin must be left OPEN. These pins output the reference voltage (signal ground (SG)) of the O analog circuit. The output is approximately 1/2 the AV MSM6722 level. DD 4/18 ...
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... Description I Mode select pin. This pin must always be tied high. The pitch step is directly set by 4 pins (bits (MSB (LSB). One of the 16 steps from step 0 (P3=P2=P1=P0="L") to step 15(P3=P2= I P1=P0="H") can be set. MSM6722 5/18 ...
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... IL1 GND IL2 MHz, no load DD OSC At power down, no load Ta=–40 to +70° power down, no load Ta=–40 to +85°C MSM6722 Rating Unit –0.3 to +7.0 V –0 0 –55 to +150 °C Range Unit 4.5 to 5.5 V –10 to +70 ° 4.5 MHz = 4 ...
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... MHz PDD OSC MHz UDPW OSC MHz RUD OSC MHz CHG1 OSC MHz CHG2 OSC MSM6722 = 4 5.5 V, DGND = AGND = Min Typ Max Unit — — — — — V – — — — ...
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... Semiconductor TIMING DIAGRAM PD(I) 1 DAO(O) t UDPW PRST(I) UPC(I) DWC(I) t CHG1 Pitch change timing t PDD t UDPW t CHG2 Pitch step is 8 ("no pitch change" state) by PRST MSM6722 t RUD Raise/lower a pitch by one step (pitch steps 0 to 15) 8/18 ...
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... MURATA MFG. CST4.00MGW (with capacitor) KBR-4.0MSA KBR-4.0MKS KYOCERA CORPORATION PBRC4.00B and AGND MSM6722 DGND AGND No good + MSM6722 Model name Frequency (MHz) 4.0 4.0 MSM6722 Optimal load capacitance C (pF) C (pF 9/18 ...
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... Semiconductor Analog Input Amplifier Circuit The MSM6722 has two built-in operational amplifiers for amplifying the microphone output. Each output amplifier is provided with an inverting input pin and output pin. The analog circuit reference voltage SG (signal ground) is connected internally to the non-inverting input of each output amplifier ...
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... AGND MIN SG ranges from FIN the OP amplifier is 200 kW or more. OUTA (200kW) (200kW) R3 Input signal MOUT LIN – amplifier 1 MSM6722 – amplitude can be within the FIN becomes 3 V max. LO P–P R4 LOUT – amplifier 2 MSM6722 11/18 ...
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... When the device is in power-down mode, the output voltage of the SG pin becomes unstable. Therefore, SG must not be supplied to external circuits. Otherwise, power suppluy current may be leaked via the internal SG circuit. Same is true for the SGC pin 50kW (TYP) + – amplifier LPF 50kW (TYP) 20kW (TYP) AGND MSM6722 SG AGND 12/18 ...
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... DWC pin lowers the pitch by one step. Inputting a "H" level pulse to the PRST pin or to the UPC and DWC pins at the same time sets the no-pitch change state (pitch step 8). Chattering prevention To pitch register circuit Chattering prevention To pitch register circuit Pitch-Control Circuit MSM6722 13/18 ...
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... Pitch Conversion Diagram Pitch Conversion Table Pitch step sampling cycle (µs)/ frequency (kHz) 16 60/16.6 15 71/14.0 14 76/13.1 13 80/12.5 12 90/11.1 11 90/10.5 10 101/9.90 9 113/8.84 8 120/8.33 7 127/7.87 6 143/6.99 5 151/6.62 4 160/6.25 3 180/5.55 2 190/5. 202/4.95 0 227/4.40 MSM6722 14/18 ...
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... Semiconductor APPLICATION CIRCUITS UP/DOWN Mode MSM6722 15/18 ...
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... Semiconductor BINARY Mode MSM6722 16/18 ...
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... MIN –1397 17 SGC –1397 18 AGND –1397 19 SG –1396 20 DGND RESET –1396 21 XT –974 22 –561 23 XT –238 MSM6722 (um) Y (um) 1782 356 1782 780 1782 1193 1351 1359 938 1359 598 1295 –127 1359 –650 1359 –1198 1359 – ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person on the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM6722 (Unit : mm) Package material Epoxy resin ...
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NOTICE 1. The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-to-date. 2. The outline of action and examples for application ...