PCM1780 Digital-to-Analog Converter Datasheet

PCM1780 Datasheet, PDF, Equivalent


Part Number

PCM1780

Description

Audio Digital-to-Analog Converter

Manufacture

Burr-Brown

Total Page 30 Pages
Datasheet
Download PCM1780 Datasheet


PCM1780
BurrĆBrown Products
from Texas Instruments
PCM1780, PCM1781, PCM1782
SLES132B – MARCH 2005 – REVISED AUGUST 2006
24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma,
Audio Digital-to-Analog Converter
FEATURES
24-Bit Resolution
Analog Performance (VCC = 5 V):
– Dynamic Range: 106 dB
– SNR: 106 dB, Typical
– THD+N: 0.002%, Typical
– Full-Scale Output: 3.9 Vp-p, Typical
4×/8× Oversampling Digital Filter:
– Stop-Band Attenuation: –50 dB
– Pass-Band Ripple: ±0.04 dB
Sampling Frequency: 5 kHz to 200 kHz
System Clock: 128 fS, 192 fS, 256 fS, 384 fS,
512 fS, 768 fS, 1152 fS With Autodetect
Software Control (PCM1780, PCM1782):
– Accepts 16-, 18-, 20-, and 24-Bit Audio Data
– Formats: Right-Justified, I2S, and
Left-Justified
– Digital Attenuation: Mode Selectable
0 dB to –63 dB, 0.5 dB/step
0 dB to –100 dB, 1 dB/step
– Digital De-Emphasis
– Digital Filter Rolloff: Sharp or Slow
– Soft Mute
– Zero Flags for Each Output
– Open-Drain Output Zero Flag (PCM1782)
Hardware Control (PCM1781):
– I2S and 16-Bit Word, Right-Justified
– Digital De-Emphasis
– Soft Mute
– Zero Flag for L-, R-Channel Common
Output
Power Supply: 5-V Single Supply
Small, 16-Lead SSOP Package (150 mil)
Pin-Compatible with PCM1680
APPLICATIONS
A/V Receivers
DVD Movie Players
DVD Add-On Cards For High-End PCs
DVD Audio Players
HDTV Receivers
Car Audio Systems
Other Applications Requiring 24-Bit Audio
DESCRIPTION
The PCM1780/81/82 is a CMOS, monolithic,
integrated circuit, which includes stereo
digital-to-analog converters and support circuitry in a
small 16-lead SSOP package. The data converters
use TI’s enhanced multilevel delta-sigma architecture
to achieve excellent dynamic performance and
improved tolerance to clock jitter. The
PCM1780/81/82 accepts industry standard audio
data formats with 16- to 24-bit data, providing easy
interfacing to audio DSP and decoder chips.
Sampling rates up to 200 kHz are supported. The
PCM1780/82 provides a full set of
user-programmable functions through a three-wire
serial control port, which supports register write
functions. The PCM1781 provides a subset of
user-programmable functions through four control
pins.
The PCM1780 is pin-compatible with the PCM1680
(8-channel DAC).
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.
System Two, Audio Precision are trademarks of Audio Precision, Inc.
All other trademarks are the property of their respective owners.
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 © 2005–2006, Texas Instruments Incorporated

PCM1780
PCM1780, PCM1781, PCM1782
SLES132B – MARCH 2005 – REVISED AUGUST 2006
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
Input voltage
Input current (any pins except supplies)
Ambient temperature under bias
Storage temperature
Junction temperature
Lead temperature (soldering)
Package temperature (IR reflow, peak)
VCC
PCM1780, PCM1781, PCM1782
–0.3 V to 6.5 V
–0.3 V to VCC + 0.3 V, < 6.5 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
Digital and analog supply voltage, VCC
Digital input logic family
Digital input clock frequency
Analog output load resistance
Analog output load capacitance
Digital output load capacitance
Operating free-air temperature, TA
System clock
Sampling clock
MIN
4.5
8.192
32
5
–25
NOM
5
TTL
MAX
5.5
UNIT
V
36.864
192
50
20
85
MHz
kHz
k
pF
pF
°C
ELECTRICAL CHARACTERISTICS
All specifications at TA = 25°C, VCC = 5 V, fS = 48 kHz, system clock = 512 fS, and 24-bit data (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Resolution
24 Bits
DATA FORMAT
PCM1780,
Audio data interface format PCM1782
PCM1781
Right-justified, I2S,
left-justified
I2S, right-justified
Audio data bit length
PCM1780,
PCM1782
PCM1781
16-, 18-, 20-, 24-bit
selectable
16–24-bit I2S, 16-bit
right-justified
Audio data format
MSB-first, 2s complement
fS Sampling frequency
System clock frequency
5 200
128 fS, 192 fS, 256 fS, 384 fS,
512 fS, 768 fS, 1152 fS
kHz
2 Submit Documentation Feedback


Features BurrĆBrown Products from Texas Instrume nts PCM1780, PCM1781, PCM1782 SLES132 B – MARCH 2005 – REVISED AUGUST 200 6 24-Bit, 192-kHz Sampling, Enhanced Mu ltilevel, Delta-Sigma, Audio Digital-to -Analog Converter FEATURES • 24-Bit Resolution • Analog Performance (VCC = 5 V): – Dynamic Range: 106 dB – S NR: 106 dB, Typical – THD+N: 0.002%, Typical – Full-Scale Output: 3.9 Vp-p , Typical • 4×/8× Oversampling Digi tal Filter: – Stop-Band Attenuation: –50 dB – Pass-Band Ripple: ±0.04 d B • Sampling Frequency: 5 kHz to 200 kHz • System Clock: 128 fS, 192 fS, 2 56 fS, 384 fS, 512 fS, 768 fS, 1152 fS With Autodetect • Software Control (P CM1780, PCM1782): – Accepts 16-, 18-, 20-, and 24-Bit Audio Data – Formats : Right-Justified, I2S, and Left-Justif ied – Digital Attenuation: Mode Selec table • 0 dB to –63 dB, 0.5 dB/step • 0 dB to –100 dB, 1 dB/step – D igital De-Emphasis – Digital Filter R olloff: Sharp or Slow – Soft Mute – Zero Flags for Each Output – Open-Drain Output Zero Flag (PCM1782) • Hardware C.
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