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Digital Voice Interface ICs

CML Micro Digital Voice Interface ICs comprise a range of flexible technologies supporting voice-data generation, coding, transcoding, and decoding functions for digital communication systems, as well as many other in-band audio applications where there is a need for storage and playback. These surface mount devices operate within a -40°C to +85°C temperature range and provide Serial, SPI, PCM, and I2S interface options.

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Types of Interface ICs

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Type	Interface Type	Mounting Style	Package/Case
Telecom Interface ICs 2400/2750bps Voice Codeing, 3600bps with FEC enabled CMX618Q3 CML Micro 1: $15.47 63In Stock	Mfr. Part No. CMX618Q3 Mouser Part No 226-CMX618Q3	CML Micro	Telecom Interface ICs 2400/2750bps Voice Codeing, 3600bps with FEC enabled Learn More about CML Micro circuits cmx618 cmx638	Datasheet	63In Stock	$15.47 $14.63	Min.: 1 Mult.: 1	Telecom Interface ICs		Half-Duplex Vocoding		SMD/SMT	VQFN-48
Telecom Interface ICs High Performance Low Bit-rate Vocoder CMX638Q3 CML Micro 1: $25.20 45In Stock	Mfr. Part No. CMX638Q3 Mouser Part No 226-CMX638Q3	CML Micro	Telecom Interface ICs High Performance Low Bit-rate Vocoder Learn More about CML Micro circuits cmx618 cmx638	Datasheet	45In Stock	$25.20 $23.85	Min.: 1 Mult.: 1	Telecom Interface ICs		RALCWI Vocoder		SMD/SMT	VQFN-48
Interface - CODECs CMX655DQ6-REEL CML Micro 1: $1.63 1,198In Stock	Mfr. Part No. CMX655DQ6-REEL Mouser Part No 226-CMX655DQ6-R	CML Micro	Interface - CODECs Learn More about CML Micro circuits cmx655d	Datasheet	1,198In Stock	Cut Tape $1.63 $1.58 $1.42 $1.33 Reel $1.31	Min.: 1 Mult.: 1 : 1,000	CODECs	Audio CODECs	Audio CODEC, Voice	I2S, PCM, SPI	SMD/SMT	VQFN-24
Telecom Interface ICs High Performance Low Bit-rate Vocoder CMX638L4 CML Micro 1: $28.51 47In Stock	Mfr. Part No. CMX638L4 Mouser Part No 226-CMX638L4	CML Micro	Telecom Interface ICs High Performance Low Bit-rate Vocoder Learn More about CML Micro circuits cmx618 cmx638	Datasheet	47In Stock	$28.51 $25.14	Min.: 1 Mult.: 1	Telecom Interface ICs				SMD/SMT	LQFP-48
Interface - CODECs Direct Connection to MEMs Microphones and includes a 1W Class-D Speaker Driver CMX655DQ6 CML Micro 1: $1.63 95In Stock 280Expected 2026/11/24	Mfr. Part No. CMX655DQ6 Mouser Part No 226-CMX655DQ6	CML Micro	Interface - CODECs Direct Connection to MEMs Microphones and includes a 1W Class-D Speaker Driver Learn More about CML Micro circuits cmx655d	Datasheet	95In Stock 280Expected 2026/11/24	$1.63 $1.58 $1.44 $1.41	Min.: 1 Mult.: 1	CODECs	Audio CODECs	Audio CODEC, Voice	Serial, SPI	SMD/SMT	VQFN-24
Telecom Interface ICs Function Images Supporting G729A/PCM/CVSD, PCM/G723.1 CMX7261L9 CML Micro 1: $19.13 32In Stock	Mfr. Part No. CMX7261L9 Mouser Part No 226-CMX7261L9	CML Micro	Telecom Interface ICs Function Images Supporting G729A/PCM/CVSD, PCM/G723.1 Learn More about CML Micro circuits cmx7261	Datasheet	32In Stock	$19.13 $18.50	Min.: 1 Mult.: 1	Telecom Interface ICs		Multi Transcoder IC	SPI	SMD/SMT	LQFP-64
Telecom Interface ICs CMX618Q3-REEL CML Micro 1,000: $13.70 Non-Stocked Lead-Time 27 Weeks	Mfr. Part No. CMX618Q3-REEL Mouser Part No 226-CMX618Q3-R	CML Micro	Telecom Interface ICs Learn More about CML Micro circuits cmx618 cmx638	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel $13.70	Min.: 1,000 Mult.: 1,000 : 1,000	Telecom Interface ICs				SMD/SMT	VQFN-48
Telecom Interface ICs CMX638L4-REEL CML Micro 1,000: $22.93 Non-Stocked Lead-Time 27 Weeks	Mfr. Part No. CMX638L4-REEL Mouser Part No 226-CMX638L4-R	CML Micro	Telecom Interface ICs Learn More about CML Micro circuits cmx618 cmx638	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel $22.93	Min.: 1,000 Mult.: 1,000 : 1,000	Telecom Interface ICs				SMD/SMT	LQFP-48
Telecom Interface ICs CMX638Q3-REEL CML Micro 1,000: $22.32 Non-Stocked Lead-Time 27 Weeks	Mfr. Part No. CMX638Q3-REEL Mouser Part No 226-CMX638Q3-R	CML Micro	Telecom Interface ICs Learn More about CML Micro circuits cmx618 cmx638	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel $22.32	Min.: 1,000 Mult.: 1,000 : 1,000	Telecom Interface ICs				SMD/SMT	VQFN-48
Telecom Interface ICs CMX7261L9-REEL CML Micro 1,000: $15.39 Non-Stocked Lead-Time 27 Weeks	Mfr. Part No. CMX7261L9-REEL Mouser Part No 226-CMX7261L9-R	CML Micro	Telecom Interface ICs Learn More about CML Micro circuits cmx7261	Datasheet	Non-Stocked Lead-Time 27 Weeks	Reel $15.39	Min.: 1,000 Mult.: 1,000 : 1,000	Telecom Interface ICs				SMD/SMT	LQFP-64

Digital Voice Interface ICs

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