msm7728 Oki Semiconductor, msm7728 Datasheet
msm7728
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msm7728 Summary of contents
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... MSM7728 Single Rail Linear CODEC GENERAL DESCRIPTION The MSM7728 is a single-channel linear CODEC CMOS IC for voice signals that contains filters for A/D and D/A conversions. Designed especially for a single-power supply and low-power applications, the device is optimized for applications for the analog interfaces of audio signal processing DSPs and digital wireless systems ...
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... LPF BPF ADCONV AUTO ZERO 5th 14 BIT VOL2 LPF DACONV SW CONTROL VOL CONTROL Tone GEN PB Tone VOL3 SERVICE Tone POWER-DOWN CONTROL RINGER Tone MSM7728 PCMOUT TCONT SYNC BCLK RCONT PCMIN RTIM PLL LA WRN RDN MCU CDOUT INF. CDIN DCLK RSTN V DD ...
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... RINGN TOUT LED NC RDN CDOUT WRN DCLK CDIN NC: No connection 30-Pin Plastic SSOP MSM7728 SGC MAO MAIN RSTN SYNC BCLK PCMOUT PCMIN 3/23 ...
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... A transmit level of +6, 0, –6, or –12dB can be selected using control data from the processor interface. When CODEC is turned off, the MAO output goes high impedance. C1 Microphone input R2 MAO MAIN – MSM7728 R1 : variable R2 > > 1/(2 ¥ 3.14 ¥ 30 ¥ R1) (F) Gain = R2/R1 < 63 4/23 ...
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... For different frequencies of the SYNC signal, the frequency values in this data sheet should be translated according to the following equation: Frequency values described in the data sheet 8 kHz at maximum pushpull driving mode (a load is inserted between PP ¥ the SYNC frequency values to be actually used MSM7728 /2) and can drive the DD 5/23 ...
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... Table 1 PCMIN/PCMOUT MSD MSM7728 6/23 ...
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... The output resistance of this pin is approximately 10kW, which should be taken into account when using it externally. RSTN Control register reset signal input. When this pin is set to digital "0" level. All control registers are reset to the initial values. Be sure to reset the control registers after turning on the power. MSM7728 7/23 ...
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... DCLK High width, See Fig.2 WCH t DCLKÆWRNL, See Fig.2 WR1 t WRNLÆDCLK, See Fig.2 WR2 t DCLKÆWRNH, See Fig.2 WR3 t WRNHÆDCLK, See Fig.2 WR4 P — WRN MSM7728 Rating Unit –0.3 to +7.0 V –0 0 –0 0 –55 to +150 °C Min. Typ. ...
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... Transmit gain stage, Gain = 20 dB — SYNC, BCLK LSTTL XD1 L t Pull-up resistor = 500 W XD2 t XD3 t CD1 — t CD2 MSM7728 Min. Typ. Max. Unit 50 — — — — 50 — — — — 9DCLK — — ...
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... O R SPKP-SPKN LSP R EAR with respect to SG potential LER C Output open LAO V SPKP, SPKN, EAR OAO SPKP, SPKN, EAR, TOUT with V OSA respect to SG potential MSM7728 = 2 3 –30°C to +85°C) DD Min. Typ. Max. Unit — 20 — mA — 12 — mA — 70 200 0.45 ¥ ...
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... SD T4 – – – –10 1020 * – – –45 MSM7728 = 2 3 –30°C to +85°C) DD Min. Typ. Max. Unit 20 — — –0.2 — +0.4 Reference value –0.2 — +0.4 –0.2 — +0.4 0 — ...
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... 2800 500 to 2600 2800 TRANS Æ RECV 1020 RECV Æ TRANS MSM7728 = 2 3 –30°C to +85°C) DD Min. Typ. Max. Unit –0.4 +0.01 +0.4 Reference value –0.4 0.0 +0.4 –1.0 –0.03 +1.0 –1.5 +0.15 +1.5 –0.3 +0.01 +0.3 Reference value – ...
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... Referenced to Gv 1020 0 34 0dB setting MSM7728 = 2 3 –30°C to +85°C) DD Min. Typ. Max. Unit 30 32 — — –37.5 –35 dBm0 — –52 –40 dBm0 — 30 — –27 –22 –19 –28 –23 – ...
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... Condition Sound volume1 Sound volume max. Sound volume2 730W between Sound volume mid. Sound volume3 RINGP and RINGN Sound volume sma.1 Sound volume4 Sound volume sma.2 MSM7728 = 2 3 –30°C to +85°C) DD Min. Typ. Max. Unit 3.5 — — 1.5 — — 0.5 — ...
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... WCH CDS CDH WRN Hi-Z WRITE Mode RDN t CD1 READ Mode MSM7728 XD3 D14 WR3 WR4 RD3 RD4 t ...
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... Semiconductor FUNCTIONAL DESCRIPTION Control Data Description The MSM7728 has eight registers to control the analog pass switch, volume, and tone via an external CPU. The data interface consists of 3-bit address data and 5-bit control data in the serial 8-bit format. The register map is as shown below. ...
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... SW2 OFF 1: SW3 ON, 0: SW3 OFF 1: SW4 ON, 0: SW4 OFF 1: SW5 ON, 0: SW5 OFF B1 B0 Function 0: SW6 OFF, 1: SW6 ON 0: LA=0, 1: LA=1 MSM7728 Remarks VOL3 and VOL4: 0dB (standard) 12dB Simultaneous setting Standard after reset 8dB is released 4dB –4dB –8dB –12dB –16dB Middle (standard) ...
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... Continuous 1000Hz Continuous 2000Hz Continuous 400Hz/16Hz 1sec 400Hz/16Hz 0.5sec 400Hz/16Hz 0.032sec 0.032sec Above tones stop MSM7728 Remarks Output destination of PB tone: EAR SPKP SPKN PB OFF after reset is released Remarks Break Time1 Break Time2 — Output 0.5sec — destination 0.25sec — ...
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... Make time Break time2 Function 0: CODEC power-off , 1: CODEC power-on 0: SPK power-off , 1: SPK power-on 0: EAR power-off , 1: EAR power-on 0: toneGEN power-off , 1: toneGEN power-on 0: SG/VR/PLL power-off , 1: SG/VR/PLL power-on MSM7728 Remarks Break Time1 Break Time2 2sec — Output 0.5sec — destination of PB tone: 0.25sec 2.25sec RINGP — ...
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... SPKP SYNC * SPKN * PDN EAR RINGP RINGN LED LA DCLK 0.1 mF WRN SGC RDN AG CDIN CDOUT MSM7728 +3 V PCM output PCM input PCM shift clock input 8 kHz SYNC signal input Reset input "1" = Operation "0" = Reset Controller /2 offset level. DD 20/23 ...
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... MSM7728 21/23 ...
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... Use a low noise (particularly, low level type of high frequency spike noise or pulse noise) power supply to avoid erroneous operation and the degradation of the characteristics of the device. pin not lower than –0 avoid latch-up that may otherwise MSM7728 22/23 ...
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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). MSM7728 (Unit : mm) Package material Epoxy resin ...