PCM2707 具有 USB 接口、耳机输出和 S/PDIF 输出的立体声音频 DAC

The PCM2704/5/6/7 is TI's single-chip USB stereo audio DAC with USB-compliant full-speed protocol controller and S/PDIF. The USB-protocolcontroller works with no software code, but USB descriptors can be modified in some parts (for example, vendor ID/product ID) through the use of an external ROM (PCM2704/6), SPI (PCM2705/7), or on request. The modification of the USB descriptor through external ROM or SPI must comply with USB-IF guidelines, and the vendor ID must be your own ID as assigned by the USB-IF. The descriptor also can be modified by changing a mask; contact your representative for details. The PCM2704/5/6/7 employs SpAct architecture, TI's unique system that recovers the audio clock from USB packet data.

	PCM2706	PCM2707
SNR (Typ) (dB)	98	98
# DACs	2	2
# Inputs / # Outputs	0 / 2	0 / 2
Sampling Rate (Max) (kHz)	48	48
Resolution (Bits)	16	16
Digital Audio Interface	USB, I2S	USB, I2S
Control Interface	HID, SPI	HID, SPI
Supply Voltage(s) (V)	3.3, 5	3.3, 5
Pd (Typ) (mW)	175	175
Additional Features	S/PDIF Output, Ext. ROM I/F, Headphone Output	S/PDIF Output, Headphone Output
Operating Temperature Range (C)	-25 to 85	-25 to 85
Pin/Package	32TQFP	32TQFP
Approx. Price (US$)	3.60 \| 1ku	3.60 \| 1ku

PCM2707 特性

On-Chip USB Interface:
- No Need of Dedicated Device Driver
- With Full-Speed Transceivers
- Fully Compliant With USB 1.1 Specification
- Certified by USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Bus-Powered or Self-Powered Operation
Sampling Rate: 32, 44.1, 48 kHz
On-Chip Clock Generator With Single 12-MHz Clock Source
Single Power Supply:
- Bus-Powered: 5 V, Typical (VBUS)
- Self-Powered: 3.3 V, Typical
16-Bit Delta-Sigma Stereo DAC
- Analog Performance at 5 V (Bus-Powered), 3.3 V (Self-Powered): THD+N: 0.006% RL > 10 kΩ, Self-Powered THD+N: 0.025% RL = 32 Ω SNR = 98 dB Dynamic Range: 98 dB PO = 12 mW, RL = 32 Ω
- Oversampling Digital Filter Pass-Band Ripple = ±0.04 dBStop-Band Attenuation = -50 dB
- Single-Ended Voltage Output
- Analog LPF Included
Multiple Functions:
- Up to Eight Human Interface Device (HID) Interfaces (Depending on Model and Settings)

PCM2707 芯片订购指南

器件	状态	温度	价格（美元）	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
PCM2706PJT	ACTIVE	-25 to 85	4.35 \| 1ku	TQFP (PJT) \| 32	250 \| JEDEC TRAY (10+1)
PCM2706PJTG4	ACTIVE	-25 to 85	4.35 \| 1ku	TQFP (PJT) \| 32	250 \| JEDEC TRAY (10+1)
PCM2706PJTR	ACTIVE	-25 to 85	3.60 \| 1ku	TQFP (PJT) \| 32	1000 \| LARGE T&R
PCM2706PJTRG4	ACTIVE	-25 to 85	3.60 \| 1ku	TQFP (PJT) \| 32	1000 \| LARGE T&R

PCM2707 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
PCM2706PJT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM2706PJT	PCM2706PJT
PCM2706PJTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM2706PJTG4	PCM2706PJTG4
PCM2706PJTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM2706PJTR	PCM2706PJTR
PCM2706PJTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	PCM2706PJTRG4	PCM2706PJTRG4