http://www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf


Texas Instruments
Texas Instruments

PCM1782 Datasheet

(PCM1780 / PCM1781 / PCM1782) 24-Bit / 192-kHz Sampling / Enhanced Multilevel / Delta-Sigma / Audio Digital-to-Analog Converter


PCM1782 Datasheet Preview


BurrĆBrown Products
from Texas Instruments
PCM1780, PCM1781, PCM1782
SLES132A – MARCH 2005 – REVISED APRIL 2005
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, inte-
grated circuit, which includes stereo digital-to-analog
converters and support circuitry in a small 16-lead
SSOP package. The data converters use TI’s en-
hanced multilevel delta-sigma architecture to achieve
excellent dynamic performance and improved toler-
ance 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 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, Texas Instruments Incorporated
Page 1

PCM1780, PCM1781, PCM1782
SLES132A – MARCH 2005 – REVISED APRIL 2005
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
Page 2

PCM1780, PCM1781, PCM1782
www.ti.com
SLES132A – MARCH 2005 – REVISED APRIL 2005
ELECTRICAL CHARACTERISTICS (continued)
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
DIGITAL INPUT/OUTPUT
Logic family
TTL compatible
VIH Input logic level
VIL
IIH (1)
IIL (1)
IIH (2)
Input logic current
IIL (2)
VOH (3)
VOL (4)
Output logic level
DYNAMIC PERFORMANCE(5)
VIN = VCC
VIN = 0 V
VIN = VCC
VIN = 0 V
IOH = –1 mA
IOL = 1 mA
2
Vdc
0.8
10
–10
µA
65 100
–10
2.4
Vdc
0.4
THD+N Total harmonic distortion + noise
Dynamic range
SNR Signal-to-noise ratio
Channel separation
DC ACCURACY
VOUT = 0 dB, fS = 48 kHz
VOUT = 0 dB, fS = 96 kHz, system
clock = 256 fS
VOUT = 0 dB, fS = 192 kHz, system
clock = 128 fS
EIAJ, A-weighted, fS = 48 kHz
A-weighted, fS = 96 kHz, system
clock = 256 fS
A-weighted, fS = 192 kHz, system
clock = 128 fS
EIAJ, A-weighted, fS = 48 kHz
A-weighted, fS = 96 kHz, system
clock = 256 fS
A-weighted, fS = 192 kHz, system
clock = 128 fS
fS = 48 kHz
fS = 96 kHz, system clock = 256 fS
fS = 192 kHz, system clock = 128 fS
0.002% 0.006%
0.003%
0.004%
100 106
104
102
100 106
104
102
97 103
101
100
dB
dB
dB
Gain error
±1
±6
% of
FSR
Gain mismatch, channel-to-channel
±1
±6
% of
FSR
Bipolar zero error
ANALOG OUTPUT
V OUT = 49% of VCC at BPZ input
±30 ±80 mV
Output voltage
Bipolar zero voltage
Load impedance
DIGITAL FILTER PERFORMANCE
Full scale (–0 dB)
AC-coupled load
0.78 VCC
0.49 VCC
5
Vp-p
Vdc
k
Filter Characteristics (Sharp Rolloff)
Pass band
Stop band
Pass-band ripple
±0.04 dB
0.546 fS
0.454 fS
0.04 dB
Stop-band attenuation
Stop band = 0.546 fS
–50
dB
(1) Pins 5, 6, 7, 8: SCK, DATA, BCK, LRCK
(2) Pins 2, 3, 4: MS, MC, MD (PCM1780/PCM1782). Pins 1, 2, 3, 4: FMT, DEMP0, DEMP1, MUTE (PCM1781)
(3) Pins 1, 16: ZEROL, ZEROR (PCM1780). Pin 16: ZEROA (PCM1781)
(4) Pins 1, 16: ZEROL, ZEROR (PCM1780/PCM1782). Pin 16: ZEROA (PCM1781)
(5) Analog performance specifications are measured using the System Two™ Cascade audio measurement system by Audio Precision™.
3
Page 3
Part Number PCM1782
Manufactur Texas Instruments
Description (PCM1780 / PCM1781 / PCM1782) 24-Bit / 192-kHz Sampling / Enhanced Multilevel / Delta-Sigma / Audio Digital-to-Analog Converter
Total Page 30 Pages
PDF Download
PCM1782 datasheet
Download PDF File
PCM1782 datasheet
View Html for PC & Mobile


Related Datasheet

PCM1780 , PCM1781 , PCM1782 ,

site map

webmaste! click here

contact us

Buy Components