PCM1605Y - 24-Bit 6-Ch Audio DAC | Texas Instruments
MPN: PCM1605Y ✓ ActivePCM1605Y Overview
An audio DAC is a converter in the signal-chain hierarchy known as a data converter and analog-to-digital or digital-to-analog interface IC. Its purpose is to transform digital audio samples into analog voltage signals suitable for headphone, line, speaker, or power-amplifier stages. The PCM1605Y combines a 24-bit resolution, six-channel architecture, and enhanced multilevel delta-sigma conversion in a single package.
The verified product information identifies a typical dynamic range of 105 dB, a typical signal-to-noise ratio of 104 dB, and typical total harmonic distortion plus noise of 0.0018%. These figures make the converter suitable for consumer audio, home-theater, musical-instrument, and digital audio equipment where multiple channels must share a consistent converter architecture. A distributor listing also identifies the device as supporting I2S-format serial audio data.
The PCM1605Y accepts serial digital audio information and provides six analog output channels, reducing the need for separate single-channel converters in multichannel equipment. Its 192 kHz capability supports high-resolution PCM source material, while the 24-bit data interface preserves the numerical depth of the incoming samples. The enhanced multilevel delta-sigma architecture is intended to shape quantization noise away from the audio band.
Typical applications include surround-sound receivers, multichannel DVD and Blu-ray audio systems, active speakers, professional music equipment, digital mixing consoles, and automotive or industrial audio modules. In each case, the converter is placed after the digital audio source and before balanced or single-ended line-output circuitry, where it reconstructs the analog waveform from the incoming PCM stream.
Designers should treat the analog outputs as sensitive signal nodes and follow the manufacturer’s reference layout for power, ground, digital inputs, and output stages. Adequate decoupling, controlled return paths, and a clean analog supply are important because they can affect the converter’s measured noise and distortion. The verified data does not provide the complete pin map or analog output circuitry, so those details must be confirmed in the manufacturer datasheet before layout.
This page consolidates verified distributor specifications, package information, application guidance, comparison parameters, and sourcing considerations. It also distinguishes verified facts from parameters that remain unavailable, helping engineers evaluate PCM1605Y without relying on guessed electrical values or unsupported drop-in claims.
Drop-in alternatives for PCM1605Y — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PCM1605Y (same form factor and footprint) — differing in Dynamic Range, Package Type.
PCM1606Y
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PCM1607Y
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PCM1608Y
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →PCM1609Y
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PCM1604Y
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →PCM1605Y Maximum Ratings & Electrical Characteristics
| Converter Type | 24-bit audio digital-to-analog converter |
| Resolution | 24 bit |
| Number of Channels | 6 channels |
| Maximum Sampling Rate | 192 kHz |
| DigiKey Listing Sampling Rate | 200 kHz |
| Conversion Architecture | Enhanced multilevel delta-sigma |
| Digital Input Format | Serial I2S |
| Dynamic Range | 105 dB typical |
| Signal-to-Noise Ratio | 104 dB typical |
| Total Harmonic Distortion Plus Noise | 0.0018% typical |
| Maximum Output Voltage | 3.41 V |
| Operating Temperature Range | -25 °C to +85 °C |
| Package Type | 48-pin MQFP (12 mm × 12 mm) |
| Terminal Count | 48 terminals |
| Terminal Pitch | 0.8 mm |
| Package Shape | Square gull-wing QFP |
| Mounting Type | Surface mount |
PCM1605Y square gull-wing qfp Pin Configuration Guide
Pin configuration for PCM1605Y (square gull-wing qfp package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for PCM1605Y.
Refer to the datasheet for full pin configuration.
Typical Applications
PCM1605Y is suitable for 6 applications: Multichannel Home-Theater Receiver, Powered Speaker and Soundbar, Digital Audio Mixer, Professional Music and Recording Equipment, Digital Media and Set-Top Equipment, Industrial and Automotive Audio Modules.
Multichannel Home-Theater Receiver
The PCM1605Y fits a home-theater receiver or surround-sound processor because it converts six digital audio channels into analog outputs while retaining 24-bit sample depth. Serial I2S input supports integration with a digital audio processor, and operation up to 192 kHz accommodates high-resolution source material. The six-channel organization also reduces the converter count compared with six separate DACs. Engineers should verify the complete pinout, supported master/slave clock relationships, and analog-output circuit in the manufacturer datasheet before finalizing the receiver PCB. Proper grounding and decoupling remain essential for preserving the device’s typical 105 dB dynamic range and 104 dB SNR in a multi-channel enclosure.
Recommended
Powered Speaker and Soundbar
The PCM1605Y is appropriate for powered speakers, soundbars, and compact cinema systems that require several low-noise analog channels from one digital audio source. Its six outputs can feed channel-specific line or power-amplifier stages, while the 24-bit interface preserves source detail. The converter’s verified 0.0018% typical THD+N and 105 dB typical dynamic range provide useful performance targets for consumer and professional-audio designs. In a compact enclosure, analog traces should remain short and isolated from digital clocks and switching supplies. The manufacturer’s reference schematic should be followed for output filtering, supply rails, grounding, and exposed-package handling because those implementation details are not available in the supplied excerpts.
Recommended
Digital Audio Mixer
A digital mixing console can use the PCM1605Y to convert processed audio into six analog channel outputs. The converter accepts serial digital audio through its I2S interface and provides a 24-bit conversion path capable of operation up to 192 kHz. This suits designs requiring simultaneous playback monitoring, zone outputs, or multichannel line-level distribution without using one converter per channel. Because mixer analog stages can amplify small converter errors, the PCM1605Y’s typical 104 dB SNR and 0.0018% THD+N provide a useful baseline. Layout should separate converter return currents from sensitive mixer channels, and clock and data routing should be kept away from the six analog output nodes. Final filter and gain-stage values must follow the datasheet’s recommended application circuit.
Recommended
Professional Music and Recording Equipment
The PCM1605Y can serve professional playback, monitoring, and recording-support equipment where multiple digital channels must become high-quality analog outputs. Its 24-bit resolution and 192 kHz maximum sampling rate align with high-resolution audio workflows, while the 105 dB typical dynamic range supports demanding monitoring applications. The six-channel output structure is useful for surround monitoring, instrument racks, and multi-zone playback systems. For best results, the converter’s analog reference and supply network should follow the manufacturer recommendations, and output filtering should be selected for the intended line-level load. Engineers should confirm whether the six outputs are independently routable or grouped through shared control functions. The supplied excerpts do not provide the complete output topology, so that detail must be checked directly in the datasheet.
Recommended
Digital Media and Set-Top Equipment
The PCM1605Y is suitable for digital media players, television-related audio products, and set-top equipment requiring multiple analog audio outputs from an I2S source. Six channels allow the design to support enhanced surround formats or simultaneous zone and main-channel outputs. The converter operates at up to 192 kHz and preserves 24-bit source data, which is beneficial when the upstream processor supports high-resolution audio. In consumer equipment, cost and thermal performance must be balanced carefully, but the supplied data does not provide a verified power-consumption value. Designers should therefore avoid estimating dissipation and should consult the manufacturer’s electrical characteristics and reference application circuit for supply selection, bypass capacitors, and output-stage implementation.
Recommended
Industrial and Automotive Audio Modules
The PCM1605Y can be evaluated for industrial audio panels, communication terminals, and automotive entertainment modules that require six synchronized analog outputs. Its operating-temperature excerpt spans -25 °C to +85 °C, making it a candidate for many commercial and industrial environments, although it is not identified as AEC-Q100 qualified. The I2S interface and 24-bit conversion path fit digital audio buses commonly used in embedded platforms. Automotive qualification, transient protection, EMC performance, and supply behavior require separate verification rather than inference from the commercial temperature range. Before using the converter in a vehicle or ruggedized system, engineers should confirm its production status, AEC-Q100 status, electrical limits, and all analog-output details from current manufacturer documentation.
Recommended
Recommended Products Summary
Engineering reference data for PCM1605Y — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PCM1606Y | PCM1607Y | PCM1608Y | PCM1609Y | PCM1604Y |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-pin MQFP (12 mm × 12 mm) | 48-pin MQFP (12 mm × 12 mm) | 48-pin MQFP (12 mm × 12 mm) | 48-pin MQFP (12 mm × 12 mm) | 48-pin MQFP (12 mm × 12 mm) | 48-pin MQFP (12 mm × 12 mm) |
| Resolution | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
Key Differentiators
- Six-channel integration in one converter (vs PCM1604Y)
- Verified high-resolution multichannel performance (vs PCM1608Y)
- Documented 192 kHz-capable six-channel configuration (vs PCM1609Y)
Design Notes
Follow the manufacturer’s reference layout for all 48 MQFP terminals rather than inferring pin functions from the family name. Keep the 0.8 mm-pitch fanout orderly and provide adequate clearance between the digital clock interface and the six analog output nodes. Confirm exposed-pad or thermal requirements for the exact package variant before releasing artwork; the supplied excerpts verify terminal count and body dimensions but do not expose the complete land pattern.
Route I2S data and clock signals as controlled-impedance traces with continuous references where practical, and keep switching nodes and high-current return paths away from the analog outputs. The verified 105 dB typical dynamic range and 0.0018% typical THD+N assume suitable implementation. Use the manufacturer’s recommended bypass and filtering values, and keep the output path short to prevent added distortion or noise pickup.
Do not treat PCM1606Y, PCM1607Y, PCM1608Y, PCM1609Y, or PCM1604Y as automatic replacements merely because they share the family name and 48-pin format. Compare every power pin, ground connection, clock signal, mode-control input, analog output, and test point against the target schematic. Also verify the sampling-rate wording because one verified distributor listing advertises 200 kHz while the indexed manufacturer description identifies 192 kHz.
Compliance Information
The verified excerpts do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance fields remain unknown rather than inferred.
