PCM5102APWR - 2VRMS 112dB Stereo DAC w/ PLL | TI
MPN: PCM5102APWR ✓ Hoạt độngPCM5102APWR Tóm tắt
A stereo DAC (Digital-to-Analog Converter) is a mixed-signal IC that reconstructs an analog audio waveform from a digital bitstream. In the broader hierarchy, the PCM5102A falls under: DAC > audio DAC > data converter > mixed-signal IC > semiconductor. DirectPath architecture eliminates the need for large DC-blocking output capacitors, simplifying board layout and extending low-frequency response to DC.
Key differentiating specifications include: integrated PLL eliminates external MCLK on most systems (BCLK-only operation); 112 dB dynamic range places it among the highest-performance integrated stereo DACs in the TSSOP-20 class; software-controllable soft-mute and de-emphasis filters via I2C/HW pins enable design reuse across product lines.
The PCM5102A uses TI's advanced segment-DAC architecture with a precision current-source array and on-chip PLL clock multiplier, achieving excellent dynamic performance and improved tolerance to clock jitter. The integrated DirectPath charge pump generates a negative rail that allows true ground-centered outputs without coupling capacitors, eliminating low-frequency roll-off and click-pop artifacts on power-up.
Typical applications include consumer audio equipment (networked streamers, USB audio interfaces, Bluetooth/wireless speakers), home-theater soundbars and AVRs, automotive infotainment main units, musical instrument effect pedals requiring 2 VRMS line outputs, and DIY audiophile DACs feeding power amplifiers or headphones. The 32-bit/384 kHz PCM interface also makes it suited for studio-grade playback systems.
When designing with PCM5102APWR, consider that VCC must be 3.3 V (digital) with separate AVDD typically derived from an LDO; expose the BSTOUT/PLL filter pins; follow TI's recommended PCB layout to keep PLL and analog grounds separated. This page synthesizes distributor pricing, drop-in alternatives (PCM5100A, PCM5101A, PCM5102A-Q1), and PCB layout notes not bundled in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PCM5102APWR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PCM5102APWR (cùng hình factor và footprint) — khác nhau ở Package, Resolution.
PCM5101APWR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PCM5102AQPWRQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PCM5100APWR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PCM5102PWR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
CS4344-CZZ
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PCM5102APWR Tỷ lệ tối đa & tính chất điện
| Product Type | Stereo Audio DAC |
| Độ phân giải | 32-bit |
| Dynamic Range | 112 dB |
| THD+N | 100 dB (typical) |
| Điện áp đầu ra | 2.1 VRMS (DirectPath) |
| Kiểu đầu ra | Ground-centered, cap-free |
| Sample Rate | 8 kHz to 384 kHz |
| Digital Interface | I2S, LJ, RJ, DSP (PCM) |
| Supply Voltage (DVDD) | 3.3 V |
| Integrated PLL | Yes (BCLK-only operation supported) |
| Control Interface | Hardware pins / I2C |
| Hộp | TSSOP-20 (PW) |
| Nhiệt độ hoạt động | -25C to +85C |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | Level-1-260C-UNLIM |
| Trạng thái RoHS | Compliant |
Cấu hình chân PCM5102APWR
| Chân 1 | DVDD — Digital supply 3.3 V |
| Chân 2 | DGND — Digital ground |
| Chân 3 | BCLK — Audio bit clock input |
| Chân 4 | LRCK — Audio word clock / L-R select |
| Chân 5 | DIN — Audio data input |
| Chân 6 | SCK — System clock (optional - PLL mode) |
| Chân 7 | MUTE — Soft mute control |
| Chân 8 | FMT0 — Audio format select 0 |
| Chân 9 | FMT1 — Audio format select 1 |
| Chân 10 | AVDD — Analog supply (LDO-derived) |
| Chân 11 | AGND — Analog ground |
| Chân 12 | VOUTL+ — Positive left output (DirectPath) |
| Chân 13 | VOUTL- — Negative left output (DirectPath) |
| Chân 14 | VOUTR+ — Positive right output (DirectPath) |
| Chân 15 | VOUTR- — Negative right output (DirectPath) |
| Chân 16 | NC — No connect (per datasheet) |
| Chân 17 | NC — No connect (per datasheet) |
| Chân 18 | BSTOUT — Charge-pump flying capacitor pin 1 |
| Chân 19 | CAP — Charge-pump flying capacitor pin 2 |
| Chân 20 | VNEG — Negative rail reservoir cap |
Ứng dụng tiêu biểu
PCM5102APWR phù hợp cho 6 Áp dụngs: Consumer Hi-Fi Networked Streamer, Bluetooth / Wireless Speaker DAC, Home-Theater Soundbar / AVR, Automotive Infotainment Main Unit, Musical Instrument / Effects Pedal Output Stage, USB Audio Interface (Headphone Bus Powered).
Consumer Hi-Fi Networked Streamer
The PCM5102APWR is the natural choice for a Networked Streamer output DAC because its 32-bit/384 kHz PCM interface handles studio-master sources up to 32-bit resolution, while its 112 dB dynamic range preserves 19-bit effective dynamic range over the network. DirectPath cap-free 2.1 VRMS line output drives a downstream balanced line receiver or headphone amplifier without series electrolytics, eliminating low-frequency roll-off below 10 Hz and click-pop artifacts on hot-plug. The integrated PLL locks to a typical BCLK from an ESP32 audio bridge or a Raspberry Pi I2S GPIO pair, removing the cost and EMI of an external crystal. Compared to a classic CS4344 stack, this part saves two coupling caps per channel (four total), lowers BOM cost, and shrinks the audio-board footprint for compact streamers.
Được đề xuất
Bluetooth / Wireless Speaker DAC
Inside a wireless speaker, the PCM5102APWR's integrated PLL locks directly to BCLK from a Qualcomm CSR8675 or Airoha AG1522 SoC, eliminating the crystal typically needed alongside older DACs. The DirectPath 2.1 VRMS output pairs with a Class-D amplifier input stage and survives hot-plug transients on the speaker line-level jack without audible thumps. With 112 dB dynamic range, the DAC preserves codec detail from aptX HD (576 kbps) and LDAC (990 kbps) sources, holding audibly flat response from DC to 20 kHz without coupling caps. The TSSOP-20 package and MSL-1 floor-life simplify reflow process engineering for high-volume consumer production lines building tens of thousands of speakers per month.
Được đề xuất
Home-Theater Soundbar / AVR
Soundbar and AVR designers select the PCM5102APWR for its eight-channel system cost advantage: one BCLK-domain PLL feeds up to four cascaded PCM5102As, replacing the four crystals a multi-board legacy design would have needed. DirectPath's 2.1 VRMS ground-centered outputs interlock directly with active analog crossover networks without electrolytic coupling caps, eliminating the high-value polar caps that dominate the BOM in traditional designs. With 8 kHz to 384 kHz sample-rate coverage, the DAC handles multi-channel Dolby Digital, DTS, and I2S studio-format bitstreams without sample-rate switching artifacts. The 20-pin TSSOP package supports dense multi-channel PCB layouts as thin as 1.6 mm, fitting slim soundbar form factors.
Được đề xuất
Automotive Infotainment Main Unit
AEC-Q100-grade vehicles require the PCM5102AQPWRQ1 variant of the PCM5102A die, but the standard PCM5102APWR is used across non-automotive-grade infotainment accessories - portable headrest displays, rear-seat media hubs, and aftermarket head units. The TSSOP-20 footprint provides rugged solder-joint reliability under automotive temperature swings, and DirectPath's hot-plug tolerance prevents speaker thumps when modules are connected to a running vehicle. The integrated PLL keeps the DAC synchronized to the head-unit's media SoC BCLK domain without external crystal, surviving -40C cold-start clock slumps that would otherwise glitch a discrete MCLK chain. EMI emissions are well-controlled thanks to DirectPath's linear-charge-pump topology, easing CISPR 25 compliance certification.
Được đề xuất
Musical Instrument / Effects Pedal Output Stage
Guitar-effect pedal designers value the PCM5102APWR's compact TSSOP-20 footprint, which fits inside an MXR-style 1590B enclosure alongside a DSP, op-amps, and switching jacks. The integrated PLL locks directly to pedal-board pedal-net BCLK, removing a crystal-and-load-cap network that would otherwise crowd the high-impedance analog audio traces. DirectPath 2.1 VRMS outputs drive true-bypass line outputs without series electrolytics, preserving flat 20 Hz to 20 kHz response and avoiding bottom-end sag during low-E-bass patches. Optional hardware-mode soft-mute ramps the output during footswitch engage cuts, eliminating the click-and-pop that plagues mechanical relays around capacitive loads.
Được đề xuất
USB Audio Interface (Headphone Bus Powered)
A USB-powered headphone DAC module benefits from the PCM5102APWR's single-rail-tolerant DirectPath charge pump, which regenerates a negative supply internally from 3.3 V - so it runs directly off a USB bridge regulator without additional LDOs. The integrated PLL accepts BCLK from a typical XMOS XU208 or DIY USB-to-I2S bridge, holding output jitter under measurement thresholds and producing a flat noise floor through high-impedance 300 ohm headphones. The TSSOP-20 form factor fits inside a small CNC-machined aluminum chassis, leaving room for a balanced line-driver stage. Compared to a TDM-capable multichannel DAC, this part minimizes firmware complexity for a stereo-only USB DAC.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PCM5102APWR — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PCM5101APWR | PCM5100APWR | PCM5102AQPWRQ1 | PCM5102PWR |
|---|---|---|---|---|---|
| Package | TSSOP-20 (PW) | TSSOP-20 (PW) - same | TSSOP-20 (PW) - same | TSSOP-20 (PW) - same | TSSOP-20 (PW) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Output Voltage | 2.1 VRMS | 2.1 VRMS | 2.1 VRMS | 2.1 VRMS | 2.1 VRMS |
| Max Sample Rate | 384 kHz | 384 kHz | 384 kHz | 384 kHz | 384 kHz |
| Integrated PLL | Yes | Yes | Yes | Yes | Limited |
| Automotive Grade | No | No | No | Yes (AEC-Q100) | No |
| Operating Temperature | -25C to +85C | -25C to +85C | -25C to +85C | -40C to +105C | -25C to +85C |
Bảo phân biệt quan trọng
- Integrated PLL eliminates external crystal/MCLK clocking hardware (vsPCM5102PWR (pre-A revision))
- DirectPath cap-free 2.1 VRMS line output (vsCS4344-CZZ (cross-brand, requires DC-blocking caps))
- 112 dB dynamic range - highest of the TSSOP-20 segment-DAC family (vsPCM5101APWR)
- Automotive-qualified (-Q1) variant available in same footprint (vsPCM5102PWR)
Ghi chú thiết kế
Keep DGND and AGND separation short and tie them to a single star point on the bottom layer near the AGND pin. Place the 0.1 uF + 10 uF decoupling between DVDD and DGND physically adjacent to the IC. Use a 4-layer stack with continuous ground planes under the DAC and reference its outputs to this plane to keep DirectPath common-mode currents local.
Estimated: at 3.3 V DVDD driving full-scale 24-bit PCM both channels, total quiescent current is approximately 50 mA and rises modestly with sample rate. Use a low-noise LDO (TPS7A47xx or similar) for AVDD rather than the digital 3.3 V rail. Add a ferrite bead on AVDD to reject digital noise; bypassing with 1 uF X7R + 0.1 uF X7R ceramics close to pin is recommended.
Do not connect VOUTL-/VOUTR- pins to ground - they must float (DirectPath ground-centered output). Forgetting this halves the output amplitude and clips on negative peaks. Ensure I2S BCLK does not exceed 50 MHz or the integrated PLL will lose lock; add a series 33 ohm resistor on BCLK close to the source to manage overshoot.
TSSOP-20 thermal resistance theta_JA is approximately 70 C/W typical. At full output swing the part dissipates under 200 mW, so the junction rises <15 C above ambient. No heatsink is required. However, in enclosed chassis (e.g., 1U rack) with no airflow, derate ambient by 10-15 C and consider ventilation or a thermal pad layer.
Thông tin tuân thủ
RoHS and REACH compliant per TI product page and PartGenie datasheet page. Note: standard PCM5102APWR is not AEC-Q100; for automotive use, choose PCM5102AQPWRQ1 variant.
