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PCM2705 Datasheet Preview

PCM2705 Datasheet

STEREO AUDIO DAC

No Preview Available !

Burr-Brown Audio
PCM2704 and PCM2705
Not Recommended For New Designs
PCM2704, PCM2705
PCM2706, PCM2707
www.ti.com....................................................................................................................................................... SLES081F – JUNE 2003 – REVISED JANUARY 2009
STEREO AUDIO DAC WITH USB INTERFACE,
SINGLE-ENDED HEADPHONE OUTPUT AND S/PDIF OUTPUT
FEATURES
1
2345 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 k,
Self-Powered
– THD+N: 0.025% RL = 32
– SNR = 98 dB
– Dynamic Range: 98 dB
– PO = 12 mW, RL = 32
– Oversampling Digital Filter
– Pass-Band Ripple = ±0.04 dB
– Stop-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)
– Suspend Flag
– S/PDIF Out With SCMS
– External ROM Interface (PCM2704/6)
– Serial Programming Interface (PCM2705/7)
– I2S Interface (Selectable on PCM2706/7)
Package:
– 28-Pin SSOP (PCM2704/5)
– 32-Pin TQFP (PCM2706/7)
APPLICATIONS
USB Headphones
USB Audio Speaker
USB CRT/LCD Monitor
USB Audio Interface Box
USB-Featured Consumer Audio Product
DESCRIPTION
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-protocol controller
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. (1)
The PCM2704/5/6/7 employs SpAct™ architecture,
TI's unique system that recovers the audio clock from
USB packet data. On-chip analog PLLs with SpAct
enable playback with low clock jitter.
(1) 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.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SpAct is a trademark of Texas Instruments.
2
System Two, Audio Precision are trademarks of Audio Precision, Inc.
3
I2S is a trademark of NXP Semiconductors.
4
All other trademarks are the property of their respective owners.
5
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2009, Texas Instruments Incorporated




etcTI

PCM2705 Datasheet Preview

PCM2705 Datasheet

STEREO AUDIO DAC

No Preview Available !

PCM2704, PCM2705
PCM2706, PCM2707
PCM2704 and PCM2705
Not Recommended For New Designs
SLES081F – JUNE 2003 – REVISED JANUARY 2009....................................................................................................................................................... www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted (1)
Supply voltage
Supply voltage differences
Ground voltage differences
VBUS
VCCP, VCCL, VCCR, VDD
VCCP, VCCL, VCCR, VDD
PGND, AGNDL, AGNDR, DGND, ZGND
Digital input voltage
HOST
D+, D–, HID0/MS, HID1/MC, HID2/MD, XTI, XTO, DOUT, SSPND, CK, DT,
PSEL, FSEL, TEST, TEST0, TEST1, FUNC0, FUNC1, FUNC2, FUNC3
VCOM
Analog input voltage
VOUTR
VOUTL
Input current (any pins except supplies)
Ambient temperature under bias
Storage temperature
Junction temperature
Lead temperature (soldering)
Package temperature (IR reflow, peak)
–0.3 V to 6.5 V
–0.3 V to 4 V
±0.1 V
±0.1 V
–0.3 V to 6.5 V
–0.3 V to (VDD + 0.3) V < 4 V
–0.3 V to (VCCP + 0.3) V < 4 V
–0.3 V to (VCCR + 0.3) V < 4 V
–0.3 V to (VCCL + 0.3) V < 4 V
±10 mA
–40°C to 125°C
–55°C to 150°C
150°C
260°C, 5 s
260°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range
Supply voltage
Digital input logic level
Digital input clock frequency
Analog output load resistance
Analog output load capacitance
Digital output load capacitance
Operating free-air temperature, TA
VBUS
VCCP, VCCL, VCCR, VDD
MIN NOM
4.35 5
3 3.3
TTL compatible
11.994
12
16 32
–25
MAX
5.25
3.6
UNIT
V
12.006
100
20
85
MHz
pF
pF
C
2 Submit Documentation Feedback
Copyright © 2003–2009, Texas Instruments Incorporated
Product Folder Link(s): PCM2704 PCM2705 PCM2706 PCM2707


Part Number PCM2705
Description STEREO AUDIO DAC
Maker etcTI
Total Page 30 Pages
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