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MSM7581T3-K-7
MSM7581T3-K-7 - Brand New Oki Semiconductor IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GENERAL DESCRIPTION
The MSM7581 is an ADPCM transcoder which is used by the new digital cordless
system. It converts 64 kbps voice PCM serial data to 32 kbps ITU-T G.721 ADPCM
serial data, and vice versa.
This device is consists of four systems with full-duplex voice data channels
and a data-through mode.
The MSM7581 provides cost effective solutions for digital cordless office
telephone systems which are incorporated into PABXs, and for the public base
stations which are connected to the Central Office through digital PSTNs.
FEATURES
• Conforms to ITU-T G.721
• Built-in Full-duplex Transcoder with Four Data Channels
• PCM companding Law: A-law/µ-law selectable
• Serial PCM Data Transmission Speed: 64 kbps to 2048 kbps
• Serial ADPCM Data Transmission Speed: 32 kbps to 2048 kbps
• Hardware Reset – ITU-T G.721 Optional Reset – for each channel
• Power Down Control for each channel
• Decoder (ADPCM -> PCM ) Mute Mode and PAD Mode for each channel
• ADPCM Data-through Mode
• Capable of time slot conversion
• Special ADPCM Input Data Code (”0000”) Detector for each channel
• Master Clock Signal : Not necessary
• Power supply voltage/Consumption current : +2.7 V to +5.5 V, 2 mA/channel
(max)
• Package :
100-pin plastic TQFP (TQFP100-P-1414-0.50-K) (Product name : MSM7581TS-K)
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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