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Status
Part Number	Status	Replacement	Explanation
DS2165	This product is Not Recommended for New Designs.	DS2165	The DS2165 is only offered as the DS2165Q in the PLCC package.
DS2165Q	Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 352kB) Download   E-Mail

Description

The DS2165 ADPCM processor chip is a dedicated digital-signal-processing (DSP) chip that has been optimized to perform adaptive differential pulse-code modulation (ADPCM) speech compression at three different rates. The chip can be programmed to compress (expand) 64kbps voice data down to (up from) either 32kbps, 24kbps, or 16kbps. The compression to 32kbps follows the algorithm specified by CCITT recommendation G.721 (July 1986) and ANSI document T1.301 (April 1987). The compression to 24kbps follows ANSI document T1.303. The compression to 16kbps follows a proprietary algorithm developed by Dallas Semiconductor. The DS2165 can switch compression algorithms on-the-fly. This allows the user to make maximum use of the available bandwidth on a dynamic basis.

Key Features

Compresses/expands 64kbps PCM voice to/from either 32kbps, 24kbps, or 16kbps Dual, fully independent channel architecture; device can be programmed to perform either: two expansions two compressions one expansion and one compression Interconnects directly to combo-codec devices Input to output delay is less than 375µs Simple serial port used to configure the device On-board time-slot assigner-circuit (TSAC) function allows data to be input/output at various time slots Supports channel associated signaling Each channel can be independently idled or placed into bypass Available hardware mode requires no host processor; ideal for voice storage applications Backward-compatible with the DS2167 ADPCM processor chip Single +5V supply; low-power CMOS technology Available in 28-pin PLCC 3V operation version is available (DS2165QL)

Diagram

Block Diagram

Reliability Reports

Request Reliability Report for: DS2165 DS2165Q

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-7 of 7

DS2165Q	Notes	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2165Q				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2165QL	3V			Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2165QN/T&R				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2165Q+				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2165QN+T&R				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2165QN				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2165QN+				Active	PLCC;28 pin;158 mm² Outline Drawing: 21-0049 (PDF) Land Pattern: 90-0235 (PDF) Use pkgcode/variation: Q28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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