The MSM7603/7603B is an improved version of the MSM7602 with basically the same configuration, and offers twice the cancelable echo delay time of the 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 .
• Can handle both acoustic and telephone line echoes.
• Switchable between m-law PCM and A-law PCM interfaces. (MSM7603B)
• Cancelable echo delay time: MSM7603B-003 55 ms (max.)
• Echo attenuation : 30 dB (typ.)
• Clock frequency : 19.2 MHz 17.5 MHz to 20 MHz (when internal sync signal not used)
• Power supply voltage : 2.7 V to 5.5 V
• Package: 28-pin plastic SSOP (SSOP28-P-485-0.65-K) (Product name : MSM7603-003GS-K) (Product name : MSM7603B-003GS-K)
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¡ Semiconductor
MSM7603/7603B
BLOCK DIAGRAM
MSM7603/7603B
RIN
S/P
Non
–linear/ Linear
ATT
Gain
Linear/ Non
–linear
.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | MSM7603 |
OKI electronic componets |
Echo Canceler | |
2 | MSM7602 |
OKI electronic componets |
Echo Canceler | |
3 | MSM7617 |
OKI electronic componets |
2-Channel Echo Canceler | |
4 | MSM7620 |
OKI electronic componets |
Echo Canceler | |
5 | MSM7630 |
OKI electronic componets |
Universal Speech Processor | |
6 | MSM7650 |
OKI electronic componets |
NTSC/PAL Digital Encoder | |
7 | MSM7652 |
OKI electronic componets |
NTSC/PAL Digital Video Encoder | |
8 | MSM7653 |
OKI electronic componets |
NTSC/PAL Digital Video Encoder | |
9 | MSM7654 |
OKI electronic componets |
NTSC/PAL Digital Video Encoder | |
10 | MSM7660 |
OKI electronic |
Digital Video Decoder | |
11 | MSM7661B |
OKI electronic componets |
NTSC/PAL Digital Video Decoder | |
12 | MSM7662 |
OKI electronic componets |
NTSC/PAL Digital Video Decoder |