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M7541
M7541 - 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 MSM7541 and MSM7542 are single-channel CODEC CMOS ICs for voice signals
ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A
conversion.
Designed especially for a single-power supply and low-power applications,
these devices are optimized for telephone terminals in digital wireless
systems.
The MSM7541 and MSM7542 use newly designed operational amplifiers to maintain
small current deviations caused by power voltage fluctuations.
The devices use the same transmission clocks as those used in the MSM7508B and
MSM7509B. The analog output signal, which is of a differential type, directly
drives a piezoelectric type handset receiver.
FEATURES
• Single power supply: +3.0 V to +3.8 V
• Low power consumption
Operating mode: 23 mW Typ. VDD = 3.3 V
Power save mode: 1 mW Typ. VDD = 3.3 V
Power down mode: 0.04 mW Typ. VDD = 3.3 V
• ITU-T Companding law
MSM7541: m-law
MSM7542: A-law
• Built-in PLL eliminates a master clock
• Serial data rate: 64/128/256/512/1024/2048 kHz
96/192/384/768/1536/1544/200 kHz
• Adjustable transmit gain
• Adjustable receive gain
• Built-in reference voltage supply
• Built-in analog loop back test mode
• Differential type analog output. Directly drives a piezoelectric type
receiver equivalent to 1.2 kW + 55 nF
• Package options:
20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7541RS)
(Product name : MSM7542RS)
24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM7541GS-K)
(Product name : MSM7542GS-K)
26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7541TS-K)
(Product name : MSM7542TS-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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