products > product profiles > MT8885
MT8885 Integrated DTMF Transceiver with Power-Down and Adaptive Micro Interface
| Product Status - Production |
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The MT8885 is a monolithic DTMF transceiver with call progress filter. It is fabricated in CMOS technology offering low power consumption and high reliability. The receiver section is based upon the industry standard MT8870 DTMF receiver. The transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. The MT8885 utilizes an adaptive micro interface, which allows the device to be connected to a number of popular microcontrollers with minimal external logic. The MT8885 provides enhanced power-down features. The transmitter and receiver may independently be powered down via register control.
Features
- Central office quality DTMF transmitter/receiver
- Single 5 Volt power supply
- Adaptive micro interface enables compatibility with Intel and Motorola processors
- DTMF transmitter/receiver power-down via register control or power-down pin
- Adjustable guard time
- Automatic tone burst mode
- Call progress tone detection to -30 dBm
Typical Applications
-
Credit card systems
- Paging systems
- Repeater systems/mobile radio
- Interconnect dialers
- Pay phones
- Remote monitor/Control systems
Product Information
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Product Availability and Packaging
| Ordering Part No. |
Package Type |
No. of Pins |
Lead-free Option |
Shipping Option |
Lead Time (Weeks) |
Status |
 |
| MT8885AN |
SSOP |
24 |
|
Tubes (Anti-static Sticks) |
CONTACT ZARLINK |
Refer to leadfree product |
| MT8885AP |
PLCC |
28 |
|
Tubes (Anti-static Sticks) |
26 Week(s) |
Production |
| MT8885ANR1 |
SSOP |
24 |
Pb-free-Matte Tin |
Tape & Reel. Bake & Drypack |
6-8 weeks |
Production |
| MT8885ANR |
SSOP |
24 |
|
Tape & Reel Mounted |
|
Obsolete |
| MT8885AN1 |
SSOP |
24 |
Pb-free-Matte Tin |
Tubes. Bake & Drypack |
6-8 weeks |
Production |
| MT8885AE |
PDIP |
24 |
|
Tubes (Anti-static Sticks) |
|
Obsolete |
| MT8885AE1 |
PDIP |
24 |
Pb-free-Matte Tin |
Tubes (Anti-static Sticks) |
6-8 weeks |
Production |
Product Lead-Times when quoted are not guaranteed and are provided as a
general guideline only; they may be varied from time to time without
notice. Updated estimates or actual schedule commit dates will be provided
at the time of order placement with Zarlink or its distributor.
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Related Products
| Part Number | Description |
|
 MT8841 |
Calling Number Identification Circuit |
| MT8843 |
Calling Number Identification Circuit 2 |
| MT88E39 |
Extended Voltage Calling Number Identification Circuit for CLIP and CID applications (Type 1) |
| MT88E41 |
Extended Voltage Calling Number Identification Circuit (ECNIC) |
| MT88E43B |
Extended Voltage Calling Number Identification Circuit for CLIP, CID and CIDCW applications (Type 2) |
| MT88E46 |
Dual Inputs (tip/ring and 4 wire) Bellcore Compliant Extended Voltage Calling Number Identification Circuit for CID, CIDCW and CWD (Type 2 and 2.5) |
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| Copyright 2008, Zarlink Semiconductor Inc. All Rights Reserved. |
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MT8885 Data Sheet
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