DS2167QN/T&R

DS2167QN/T&R Datasheet

DS2167/DS2168

Part	Datasheet
DS2167QN/T&R	DS2167QN/T&R (pdf)

Related Parts	Information
DS2167QN	DS2167QN
DS2167Q	DS2167Q
DS2167	DS2167

PDF Datasheet Preview
DS2167/DS2168 DS2167/DS2168 ADPCM Processor FEATURES • Speech compression chip compatible with standard ADPCM algorithms: DS2167 supports “new” T1Y1 recommendations July 1986 and “new” CCITT G.721 recommendations DS2168 supports “old” CCITT G.721 recommendations • Dual independent channel architecture device may be programmed to perform full duplex, 2-channel expansions, or 2-channel compressions • Interconnects directly with µ-law or A-law codec/filter devices • Serial PCM and control port interfaces minimize “glue logic” in multiple channel applications On-chip channel counters identify input and output timeslots in TDM-based systems Unique addressing scheme simplifies device control 3-wire port shared among 64 devices Bypass and idle features allow dynamic allocation of channel bandwidth, minimize system power requirements • Hardware mode intended for stand-alone use No host processor required Ideal for voice mail applications • 28-pin surface-mount package available, designated DS2167Q/DS2168Q PIN ASSIGNMENT RST 1 TM0 2 TM1 3 A0 4 A1 5 A2 6 A3 7 A4 8 A5 9 SPS 10 MCLK 11 VSS 12 24 VDD CLKY 20 YOUT 19 CS 18 SDI 17 SCLK 16 XOUT 15 FSX 14 CLKX 13 XIN 24-Pin DIP 600 MIL TM1 TM0 RST NC VDD YIN CLKY NC 5 4 3 2 1 28 27 2625 FSY 24 YOUT 23 CS 22 SDI 21 SCLK A4 10 20 XOUT

PDF Datasheet Preview

DS2167/DS2168

DS2167/DS2168 ADPCM Processor

FEATURES
• Speech compression chip compatible with standard

ADPCM algorithms:

DS2167 supports “new” T1Y1 recommendations July 1986 and “new” CCITT G.721 recommendations

DS2168 supports “old” CCITT G.721 recommendations
• Dual independent channel architecture device may
be programmed to perform full duplex, 2-channel expansions, or 2-channel compressions
• Interconnects directly with µ-law or A-law codec/filter
devices
• Serial PCM and control port interfaces minimize “glue
logic” in multiple channel applications

On-chip channel counters identify input and output timeslots in TDM-based systems

Unique addressing scheme simplifies device control 3-wire port shared among 64 devices

Bypass and idle features allow dynamic allocation of channel bandwidth, minimize system power requirements
• Hardware mode intended for stand-alone use

No host processor required Ideal for voice mail applications
• 28-pin surface-mount package available, designated

DS2167Q/DS2168Q

PIN ASSIGNMENT

RST 1

TM0 2 TM1 3

A0 4 A1 5 A2 6 A3 7 A4 8 A5 9 SPS 10 MCLK 11 VSS 12
24 VDD

CLKY
20 YOUT
19 CS
18 SDI
17 SCLK
16 XOUT
15 FSX
14 CLKX 13 XIN
24-Pin DIP 600 MIL

TM1 TM0 RST NC VDD YIN CLKY

NC 5 4 3 2 1 28 27 2625 FSY
24 YOUT
23 CS
22 SDI
21 SCLK

A4 10
20 XOUT

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Datasheet ID: DS2167QN/T&R 508392