PCM2704CDB

Texas Instruments

-25℃~+85℃ 12MHz 16 160uA 2 32kHz、44.1kHz、48kHz 3V~5.25V SPI、USB SSOP-28-208mil ADCs/DACs - Special Purpose ROHS

Extended

Category: ADCs, DACs Special Purpose
Package: SSOP-28
Pins: 28

Overview

The PCM2704CDB is an ADCs, DACs Special Purpose made by Texas Instruments in a SSOP-28 package with 28 pins. -25℃~+85℃ 12MHz 16 160uA 2 32kHz、44.1kHz、48kHz 3V~5.25V SPI、USB SSOP-28-208mil ADCs/DACs - Special Purpose ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCM2704DBR, from EasyEDA) and its footprint (Package_SO:SSOP-28_5.3x10.2mm_P0.65mm, from KiCad's library), ready for a KiCad board. 385 are in stock at JLCPCB (part C2859784). 3 open-source boards in 3 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:PCM2704DBRFrom EasyEDA

Footprint

Package_SO:SSOP-28_5.3x10.2mm_P0.65mmFrom KiCad's library

From the datasheet

Supply, least: 4.35 V · VBUS, recommended operating min, bus-powered · p. 8
Supply, most: 5.25 V · VBUS, recommended operating max, bus-powered · p. 8
Supply, least: 3 V · VCCP, recommended operating min, self-powered · p. 8
Supply, most: 3.6 V · VCCP, recommended operating max, self-powered · p. 8
Supply, absolute maximum: 6.5 V · VBUS, absolute max · p. 7
Supply, absolute maximum: 4 V · VCCP, absolute max · p. 7
Works from: -25 °C · Operating free-air temperature min · p. 8
Works up to: 85 °C · Operating free-air temperature max · p. 8
Junction, hottest: 150 °C · Junction temperature absolute max · p. 7
Takes working: 23 mA · Supply current typical, line DAC operation · p. 10
Takes working: 35 mA · Supply current typical, headphone DAC operation, RL = 32 Ω · p. 10
Takes at most: 46 mA · Supply current max, headphone DAC operation, RL = 32 Ω · p. 10
Takes asleep: 150 µA · Supply current typical, USB suspend mode · p. 10
Junction to air (DB (SSOP)): 68.2 K/W · Junction-to-ambient thermal resistance · p. 8
Junction to case (DB (SSOP)): 27.2 K/W · Junction-to-case (top) thermal resistance · p. 8
Junction to board (DB (SSOP)): 29.5 K/W · Junction-to-board thermal resistance · p. 8

What it is and has

DAC: 16-bit delta-sigma stereo · p. 1
Sampling rates: 32 kHz, 44.1 kHz, 48 kHz · p. 1
USB transceiver: Full-speed · p. 1
USB compliance: USB 2.0 · p. 1
USB certification: USB-IF certified · p. 1
USB driver: No dedicated device driver needed · p. 1
Descriptors: Partially programmable · p. 1
Playback transfer: Adaptive isochronous · p. 1
Power configuration: Bus-powered or self-powered · p. 1
Digital filter: Oversampling digital filter · p. 1
Analog output: Single-ended voltage output · p. 1
Analog filter: Integrated low-pass filter · p. 1
Suspend indication: Suspend flag · p. 1
S/PDIF: Output with SCMS · p. 1
External ROM interface: Supported · p. 1
USB interface: Full-speed transceivers · p. 1
USB certification: USB-IF · p. 1
Device driver: No dedicated device driver needed · p. 1

Around it

cap unspecified: between VCCL and GND; Supply decoupling capacitor. · p. 4
cap unspecified: between VCOM and PGND; DAC common-voltage decoupling capacitor. · p. 5

Specifications

Parameter	Conditions	As printed	Page
Supply voltage	VBUS	min -0.3 · max 6.5 V	7
Supply voltage	VCCP, VCCL, VCCR, VDD	min -0.3 · max 4 V	7
Supply voltage differences	VCCP, VCCL, VCCR, VDD; maximum magnitude ±0.1 V	max 0.1 V	7
Ground voltage differences	PGND, AGNDL, AGNDR, DGND, ZGND; maximum magnitude ±0.1 V	max 0.1 V	7
Digital input voltage	HOST	min -0.3 · max 6.5 V	7
Digital input voltage	D+, D–, HID0/MS, HID1/MC, HID2/MD, XTI, XTO, DOUT, SSPND, CK, DT, PSEL, TEST0, TEST1; maximum (VDD + 0.3) < 4 V	min -0.3 V	7
Analog input voltage	VCOM; maximum (VCCP + 0.3) < 4 V	min -0.3 V	7
Analog input voltage	VOUTR; maximum (VCCR + 0.3) < 4 V	min -0.3 V	7
Analog input voltage	VOUTL; maximum (VCCL + 0.3) < 4 V	min -0.3 V	7
Input current (any pins except supplies)	Magnitude ±10 mA; printed in MIN column	min 10 mA	7
Ambient temperature under bias		min -40 · max 125 °C	7
Junction temperature		max 150 °C	7
Package temperature (IR reflow, peak)		max 260 °C	7
Storage temperature, Tstg Tstg		min -55 · max 150 °C	7
Electrostatic discharge V(ESD)	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins; maximum magnitude ±3000 V	max 3000 V	7
Electrostatic discharge V(ESD)	Charged device model (CDM), per JEDEC specification JESD22-C101, all pins; maximum magnitude ±1500 V	max 1500 V	7
Supply voltage	VBUS; NOM = 5 V	min 4.35 · typ 5 · max 5.25 V	8
Supply voltage	VCCP, VCCL, VCCR, VDD; NOM = 3.3 V	min 3 · typ 3.3 · max 3.6 V	8
Digital input clock frequency	NOM = 12 MHz	min 11.994 · typ 12 · max 12.006 MHz	8
Analog output load resistance	NOM = 32 Ω	min 16 · typ 32 Ω	8
Analog output load capacitance		max 100 pF	8
Digital output load capacitance		max 20 pF	8
Operating free-air temperature, TA TA		min -25 · max 85 °C	8
Junction-to-ambient thermal resistance RθJA	PCM2704C, DB (SSOP), 28 PINS	typ 68.2 °C/W	8
Junction-to-case (top) thermal resistance RθJC(top)	PCM2704C, DB (SSOP), 28 PINS	typ 27.2 °C/W	8
Junction-to-board thermal resistance RθJB	PCM2704C, DB (SSOP), 28 PINS	typ 29.5 °C/W	8
Junction-to-top characterization parameter ψJT	PCM2704C, DB (SSOP), 28 PINS	typ 2.7 °C/W	8
Junction-to-board characterization parameter ψJB	PCM2704C, DB (SSOP), 28 PINS	typ 29.1 °C/W	8
Input logic high level VIH	Except HOST	min 2 · max 3.3 VDC	9
Input logic high level (1) VIH	HOST pin	min 2 · max 5.5 VDC	9
Input logic low level VIL	Except HOST	min -0.3 · max 0.8 VDC	9
Input logic low level (1) VIL	HOST pin	min -0.3 · max 0.8 VDC	9
Input logic high current (2) IIH	VIN = 3.3 V; D+, D–, HOST, TEST0, TEST1, DT, PSEL, XTI; maximum magnitude ±10 uA	max 10 uA	9
Input logic high current IIH	VIN = 3.3 V; other input logic pins	typ 65 · max 100 uA	9
Input logic low current (2) IIL	VIN = 0 V; D+, D–, HOST, TEST0, TEST1, DT, PSEL, XTI; maximum magnitude ±10 uA	max 10 uA	9
Input logic low current IIL	VIN = 0 V; other input logic pins; maximum magnitude ±10 uA	max 10 uA	9
Output logic high level VOH	IOH = –2 mA	min 2.4 VDC	9
Output logic low level VOL	IOL = 2 mA	max 0.4 VDC	9
Input clock frequency, XTI		min 11.994 · typ 12 · max 12.006 MHz	9
Sampling frequency ƒS		typ 32 kHz	9
Sampling frequency ƒS		typ 44.1 kHz	9
Sampling frequency ƒS		typ 48 kHz	9
Resolution		typ 16 bits	9
Gain mismatch, channel-to-channel	Typical ±2; maximum ±8	typ 2 · max 8 % of FSR	9
Gain error	Typical ±2; maximum ±8	typ 2 · max 8 % of FSR	9
Bipolar zero error	Typical ±3; maximum ±6	typ 3 · max 6 % of FSR	9
Total harmonic distortion + noise THD + N	Line; RL > 10 kΩ, self-powered, VOUT = 0 dB	typ 0.006 · max 0.01 %	9
Total harmonic distortion + noise THD + N	Line; RL > 10 kΩ, bus-powered, VOUT = 0 dB	typ 0.012 · max 0.02 %	9
Total harmonic distortion + noise THD + N	Headphone; RL = 32 Ω, self- or bus-powered, VOUT = 0 dB	typ 0.025 %	9
Total harmonic distortion + noise THD + N	VOUT = –60 dB	typ 2 %	9
Dynamic range	EIAJ, A-weighted	min 90 · typ 98 dB	9
Signal-to-noise ratio SNR	EIAJ, A-weighted	min 90 · typ 98 dB	9
Channel separation		min 60 · typ 70 dB	9
Load impedance	Line; AC-coupling	min 10 kΩ	10
Load impedance	Headphone; AC-coupling	min 16 · typ 32 Ω	10
LPF frequency response	–3 dB	typ 140 kHz	10
LPF frequency response	ƒ = 20 kHz	typ -0.1 dB	10
Passband ripple	Maximum magnitude ±0.04 dB	max 0.04 dB	10
Stop band attenuation		min -50 dB	10
Voltage range	VBUS; Bus-powered	min 4.35 · typ 5 · max 5.25 VDC	10
Voltage range	VCCP, VCCL, VCCR, VDD; Self-powered	min 3 · typ 3.3 · max 3.6 VDC	10
Supply current	Line; DAC operation	typ 23 · max 30 mA	10
Supply current	Headphone; DAC operation (RL = 32 Ω)	typ 35 · max 46 mA	10
Supply current	Line/headphone; Suspend mode; USB suspended state	typ 150 · max 190 uA	10
Power dissipation (self-powered)	Line; DAC operation	typ 76 · max 108 mW	10
Power dissipation (self-powered)	Headphone; DAC operation (RL = 32 Ω)	typ 116 · max 166 mW	10
Power dissipation (self-powered)	Line/headphone; Suspend mode; USB suspended state	typ 495 · max 684 uW	10
Power dissipation (bus-powered)	Line; DAC operation	typ 115 · max 158 mW	10
Power dissipation (bus-powered)	Headphone; DAC operation (RL = 32 Ω)	typ 175 · max 242 mW	10
Power dissipation (bus-powered)	Line/headphone; Suspend mode; USB suspended state	typ 750 · max 998 uW	10
Internal power-supply voltage (7)	VCCP, VCCL, VCCR, VDD; Bus-powered; pins are internal power supply outputs	min 3.2 · typ 3.35 · max 3.5 VDC	10
Operating temperature		min -25 · max 85 °C	10
CK clock frequency ƒ(CK)		max 100 kHz	11
Bus free time between a STOP and a START condition t(BUF)		min 4.7 us	11
Low period of the CK clock t(LOW)		min 4.7 us	11
High period of the CK clock t(HI)		min 4 us	11
Setup time for START/repeated START condition t(RS-SU)		min 4.7 us	11
Hold time for START/repeated START condition t(S-HD), t(RS-HD)		min 4 us	11
Data setup time t(D-SU)		min 250 ns	11
Data hold time t(D-HD)		min 0 · max 900 ns	11
Rise time of CK signal t(CK-R)	Minimum 20 + 0.1 CB	max 1000 ns	11
Fall time of CK signal t(CK-F)	Minimum 20 + 0.1 CB	max 1000 ns	11
Rise time of DT signal t(DT-R)	Minimum 20 + 0.1 CB	max 1000 ns	11
Fall time of DT signal t(DT-F)	Minimum 20 + 0.1 CB	max 1000 ns	11
Setup time for STOP condition t(P-SU)		min 4 us	11
Capacitive load for DT and CK lines CB		max 400 pF	11

Pins, by the datasheet

1 XTO: Crystal oscillator output. · p. 5
2 CK: Clock output for external ROM. · p. 4
3 DT: Data input/output for external ROM; LV-TTL level. · p. 4
4 PSEL: Power source select: low for self-power, high for bus-power; LV-TTL level. · p. 4
5 DOUT: S/PDIF output. · p. 4
6 DGND: Digital ground. · p. 4
7 VDD: Digital power supply; decouple to GND and supply 3.3 V for self-powered operation; internal supply output for bus-powered operation. · p. 5
8 D–: USB differential input/output minus. · p. 4
9 D+: USB differential input/output plus. · p. 4
10 VBUS: Connect to USB power for bus-powered operation or VDD for self-powered operation. · p. 4
11 ZGND: Ground for internal regulator. · p. 5
12 AGNDL: Analog ground for L-channel headphone amplifier. · p. 4
13 VCCL: L-channel headphone amplifier supply; decouple to GND and supply 3.3 V for self-powered operation; internal supply output for bus-powered operation. · p. 4
14 VOUTL: DAC analog output for L-channel. · p. 5
15 VOUTR: DAC analog output for R-channel. · p. 5
16 VCCR: R-channel headphone amplifier supply; decouple to GND and supply 3.3 V for self-powered operation; internal supply output for bus-powered operation. · p. 5
17 AGNDR: Analog ground for R-channel headphone amplifier. · p. 4
18 VCOM: DAC common voltage, VCCP/2; connect decoupling capacitor to PGND. · p. 5
19 PGND: Analog ground for DAC, oscillator, and PLL. · p. 4
20 VCCP: DAC, oscillator, and PLL supply; decouple to GND and supply 3.3 V for self-powered operation; internal supply output for bus-powered operation. · p. 5
21 HOST: Self-powered host detection, connected to VBUS; bus-powered maximum power select: low 100 mA, high 500 mA; 5-V tolerant LV-TTL. · p. 4
22 HID0/MS: Active-high HID mute key state input with internal pulldown. · p. 4
23 HID1/MC: Active-high HID volume-up key state input with internal pulldown. · p. 4
24 HID2/MD: Active-high HID volume-down key state input with internal pulldown. · p. 4
25 TEST1: Test pin; must be set high. · p. 4
26 TEST0: Test pin; must be set high. · p. 4
27 SSPND: Active-low suspend flag: low when suspended, high when operational. · p. 4
28 XTI: Crystal oscillator input; LV-TTL level. · p. 5

Ordering codes, by the datasheet

PCM2704CDB: SSOP-28 (DB) · Package quantity 50; operating temperature -25 to 85 °C · p. 41
PCM2704CDBR: SSOP-28 (DB) · Package quantity 2000; operating temperature -25 to 85 °C · p. 41

Parameters

Current - Supply: 23mA
Current - Supply(Max): 46mA
Features: Digital filtering
Interface Type: USB
Junction Temperature(Max): 150℃
Number of Channels: 2
Operating Temperature: -25℃~+85℃
Quiescent Current (Iq): 160uA
Resolution (Bits): 16
Sampling Rate: 44.1kHz
Standby Current: 150uA
Thermal Resistance(Junction to Ambient): 68.2℃/W
Thermal Resistance(Junction to Board): 29.5℃/W
Thermal Resistance(Junction to Case): 27.2℃/W
Voltage - Supply: 3V~5.25V
Voltage - Supply(Absolute Max): 6.5V

Order codes

PCM2704CDBLCSC C1540104
PCM2704CDBRLCSC C2859784

Pinout

The pins of the PCM2704CDB
Pin	Name	Type
1	XTO	Unspecified
2	CK	Unspecified
3	DT	Unspecified
4	PSEL	Unspecified
5	DOUT	Unspecified
6	DGND	Unspecified
7	VDD	Unspecified
8	D-	Unspecified
9	D+	Unspecified
10	VBUS	Unspecified
11	ZGND	Unspecified
12	AGNDL	Unspecified
13	VCCL	Unspecified
14	VOUTL	Unspecified
15	VOUTR	Unspecified
16	VCCR	Unspecified
17	AGNDR	Unspecified
18	VCOM	Unspecified
19	PGND	Unspecified
20	VCCP	Unspecified
21	HOST	Unspecified
22	HID0/MS	Unspecified
23	HID1/MC	Unspecified
24	HID2/MD	Unspecified
25	TEST1	Unspecified
26	TEST0	Unspecified
27	SSPND#	Unspecified
28	XTI	Unspecified

Open-source boards using it

All 3

4 layers73.7 × 76.2 mm
Motherboard
bfrigon/alarm-clock-hardware
Alarm clock
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Audio Amp v1
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Amp and adapter
Vaaxs/usbc-3.5mm-dac-amp-adapter
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26 parts

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Questions

Is there a KiCad symbol and footprint for the PCM2704CDB?

Yes. The symbol is EasyEDA_Cloud:PCM2704DBR and the footprint Package_SO:SSOP-28_5.3x10.2mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the PCM2704CDB?

SSOP-28, with 28 pins. Its footprint is drawn on this page.

Where is the PCM2704CDB datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the PCM2704CDB?

JLCPCB lists it as part C2859784, with 385 in stock; the sellers' links on this page open their listings.

What can replace the PCM2704CDB?

Parts like it in the library: the PCM1804DB by Texas Instruments, the PCM1794ADB by Texas Instruments, the PCM1798DB by Texas Instruments and the PCM1796DB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the PCM2704CDB?

3 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

PCM2704CDB

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Ordering codes, by the datasheet

Parameters

Order codes

Pinout

Open-source boards using it

Motherboard

Audio Amp v1

Amp and adapter

Show this part on your page

Questions

Is there a KiCad symbol and footprint for the PCM2704CDB?

What package is the PCM2704CDB?

Where is the PCM2704CDB datasheet?

Where can I order the PCM2704CDB?

What can replace the PCM2704CDB?

Which open-source boards use the PCM2704CDB?

Parts like it

PCM1804DB

PCM1794ADB

PCM1798DB

PCM1796DB

PCM1792ADB

PCM2704DB

PCM4202DB

MAX1414CAI+