MSM6688 |
RFQ for MSM6688 Required Field |
 |
| Product | Manufacturers | Pack | D/C |
| MSM6688 | - | QFP | 2005 |
The MSM6688/6688L is a "solid-state recorder" IC developed using the ADPCM method. Byexternally connecting a microphone, a speaker, a speaker drive amplifier, and a dedicated registero store ADPCM data, it can record and play back voice data in a manner similar to a tape recorder.The MSM6688 supports 5 V operation and has a stand-alone mode and a microcontroller interfacemode.
The MSM6688L supports 3 V operation and controls recording/playback in microcontroller interfacemode.
In the stand-alone mode, recording/playback conditions can be selected by pins and the MSM6688/6688L can be controlled by a simple drive timing. In the microcontroller interface mode, recording/playback can be controlled by commands from the microcontroller. In the microcontroller interfacemode, the MSM6688/6688L is much more flexible than in the stand-alone mode.
In addition, the MSM6688/6688L can form easily a recording and playback circuit with fixedmessages by connecting serial registers and serial voice ROMs as external memories.
Note: This data sheet explains a stand-alone mode and a microcontroller interface mode, separately.
Features |
| 3-bit or 4-bit ADPCMBuilt-in 12-bit AD converterBuilt-in12-bit DA converterBuilt-in microphone amplifierBuilt-in low-pass filter Attenuation characteristics 40 dB/octExternal memories Serial registers, 32M bits maximum (for variable messages) 8M bit serial register (MSM6685) can be driven directly Serial voice ROMs, 4M bits maximum (for fixed messages) 1M bit serial voice ROM (MSM6595A) can be driven directly 2M bit serial voice ROM (MSM6596A) can be driven directly 3M bit serial voice ROM (MSM6597A) can be driven directlySampling frequency 4.0 kHz, 5.3 kHz, 6.4 kHz or 8.0 kHz (master clock frequency = 4.096 MHz) 8.0 kHz, 10.6 kHz, 12.8 kHz, or 16.0 kHz (master clock frequency = 8.192 MHz)Number of phrases 63 phrases for variable messages 63 phrases for fixed messagesMaximum recording time (when external 32M bit RAM is connected) 34 minutes (for 16 kbps ADPCM) 23 minutes (for 24 kbps ADPCM) 17 minutes (for 32 kbps ADPCM)Voice triggered starting functionPause functionMaster clock frequency: 4.096 MHz~8.192 MHzPower supply voltage: Single 5 V power supplyPackage: 56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM6688GS-2K) |
|
Parameter |
Symbol |
Condition |
Rating |
Unit |
|
Power supply voltage |
VDD |
Ta = 25 |
0.3 to +7.0 |
V |
|
InputVoltage |
VIN |
Ta = 25 |
0.3 to VDD+0.3 |
V |
|
Storage temperature |
TSTG |
- |
55 to +150 |
