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MSM6688L の電気的特性と機能

MSM6688LのメーカーはOKI electronic componetsです、この部品の機能は「ADPCM Solid-State Recorder IC」です。


製品の詳細 ( Datasheet PDF )

部品番号
MSM6688L
部品説明
ADPCM Solid-State Recorder IC
メーカ
OKI electronic componets
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OKI electronic componets ロゴ 




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MSM6688L Datasheet, MSM6688L PDF,ピン配置, 機能
E2D0026-27-43
¡ Semiconductor
MSM6688/6688L
ADPCM Solid-State Recorder IC
This version: Jan. 1998
Previous version: May. 1997
GENERAL DESCRIPTION
The MSM6688/6688L is a “solid-state recorder” IC developed using the ADPCM method. By
externally connecting a microphone, a speaker, a speaker drive amplifier, and a dedicated register
to 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 interface
mode.
The MSM6688L supports 3 V operation and controls recording/playback in microcontroller interface
mode.
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 interface
mode, 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 fixed
messages by connecting serial registers and serial voice ROMs as external memories.
Note: Thisdatasheetexplainsastand-alonemodeandamicrocontrollerinterfacemode,separately.
Differences Between MSM6688 and MSM6688L
Parameter
Operating voltage
Control mode
Full scale of A/D and D/A
converters
Voice detection level for voice
triggered starting
External-only register
MSM6688
3.5 to 5.5 V
Standalone mode,
Microcontroller interface mode
0 to VDD
± VDD , ± VDD , ± VDD
64 32 16
32M bits (max.)
4M bits (MSM6684B)
8M bits (MSM6685)
MSM6688L
2.7 to 3.6 V
Microcontroller interface
mode only
1
4
VDD to
3
4
VDD
± VDD , ± VDD , ± VDD
128 64 32
4M bits (max.)
4M bits (MSM66V84B)
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MSM6688L pdf, ピン配列
¡ Semiconductor
MSM6688/6688L
(1) STAND-ALONE MODE (for MSM6688 (5 V Version))
FEATURES
• 3-bit or 4-bit ADPCM
• Built-in 12-bit AD converter
• Built-in12-bit DA converter
• Built-in microphone amplifier
• Built-in low-pass filter
Attenuation characteristics –40 dB/oct
• External 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 directly
• Sampling 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 messages
• Maximum 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 function
• Pause function
• Master clock frequency: 4.096 MHz~8.192 MHz
• Power supply voltage: Single 5 V power supply
• Package:
56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM6688GS-2K)
3/159


3Pages


MSM6688L 電子部品, 半導体
¡ Semiconductor
MSM6688/6688L
PIN DESCRIPTIONS
Pin Symbol
49 DVDD
21 DVDD'
22 AVDD
30 DGND
29 AGND
23 SG
24 SGC
28 MIN
26 LIN
27 MOUT
25 LOUT
20 AMON
19 FIN
17 FOUT
16 ADIN
18 AOUT
39 SADX
38 SADY
36 SAS
37 TAS
50 RWCK
46 WE
Type
Description
Digital power supply pin. Insert a bypass capacitor of 0.1µF or more
between this pin and the DGND pin.
Digital power supply pin
Analog power supply pin. Insert a bypass capacitor of 0.1µF or more
between this pin and the AGND pin.
Digital ground pin
Analog ground pin
O Output pin for analog circuit reference voltage (signal ground)
Inverting input pin of the built-in OP amplifier. Non-inverting input
I pin is internally connected to SG (signal ground).
MOUT and LOUT are output pins of the built-in OP amplifier for MIN
O
and LIN, respectively.
This pin is connected to the LOUT pin in the recording mode and to
O the DA converter output in the playback mode. Used to connect the
built-in LPF input (FIN pin).
I Input pin of the built-in LPF.
Output pin of the built-in LPF. Used to connect the AD converter
O
input (ADIN pin).
I Input pin of the built-in 12-bit AD converter.
Output pin of the built-in LPF. This pin outputs playback waveforms
O
and used to connect an external speaker drive amplifier.
(Serial Address Data). SADX is used to connect the SAD pin of each
external serial register and the SADX pin of each external serial voice
O
ROM. SADY is used to connect the SADY pin of each external serial
voice ROM. Outputs of starting address of read/write.
(Serial Address Strobe). Used to connect the SAS pin of external
O serial register and the SASX and SASY pins of
external serial voice ROM. Clock pin to write the serial address.
(Transfer Address Strobe). Used to connect the TAS pin of each
external serial register and serial voice ROM.
O This pin outputs address strobe outputs to set the serial address
data from the SADX and SADY pins into the internal address counter
of each serial register and serial voice ROM.
(Read/Write Clock). Used to connect the RWCK pin of each external
serial register and the RDCK pin of each external
O
serial voice ROM. This pin outputs a clock to read data from or write
it into each external serial register.
(Write Enable) Used to connect the WE pin of each external
O serial register. This pin outputs WE signal to
select either read or write mode.
6/159

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合計 : 70 ページ
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部品番号部品説明メーカ
MSM6688

ADPCM Solid-State Recorder IC

OKI electronic componets
OKI electronic componets
MSM6688L

ADPCM Solid-State Recorder IC

OKI electronic componets
OKI electronic componets

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