Burr Brown Products
from Texas Instruments
PCM3000
PCM3001
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
18-BIT STEREO AUDIO CODEC, SINGLE-ENDED ANALOG INPUT/OUTPUT
FEATURES
•
•
•
•
Monolithic 18-Bit
∆Σ
ADC and DAC
16- or 18-Bit Input/Output Data
Accepts Seven Alternate Formats
Stereo ADC:
– Single-Ended Voltage Input
– 64× Oversampling Digital Filter
•
Pass-Band Ripple:
±0.05
dB
•
Stop-Band Attenuation: –65 dB
– High Performance:
•
THD+N: –88 dB
•
SNR: 94 dB
•
Dynamic Range: 94 dB
– Digital High-Pass Filter
Stereo DAC
– Single-Ended Voltage Outut
– Analog Low-Pass Filter
– 8× Oversampling Digital Filter
•
Pass-Band Ripple:
±0.17
dB
•
Stop-Band Attenuation: 35 dB
– High Performance:
•
THD+N: –90 dB
•
SNR: 98 dB
•
Dynamic Range: 97 dB
Special Features (PCM3000)
– Digital De-Emphasis
– Digital Attenuation (256 Steps)
– Soft Mute
– Digital Loopback
Sample Rate: 4 kHz to 48 kHz
System Clock: 256 f
s
, 384 f
s
, 512 f
s
•
•
•
•
•
•
•
•
•
•
Single 5-V Power Supply
Small Package: SSOP-28
APPLICATIONS
Sampling Keyboards
Digital Mixers
Mini-Disk Recorders
Hard-Disk Recorders
Karaoke Systems
DSP-Based Car Stereo
DAT Recorders
Video Conferencing
DESCRIPTION
The PCM3000/3001 is a low-cost, single-chip stereo
audio codec (analog-to-digital and digital-to-analog
converter) with single-ended analog voltage input and
output.
Both ADCs and DACs employ delta-sigma modu-
lation with 64-times oversampling. The ADCs include
a digital decimation filter and the DACs include an
8-times oversampling digital interpolation filter. The
DACs also include digital attenuation, de-emphasis,
infinite zero detection and soft mute to form a
complete subsystem. The PCM3000/3001 operates
with left-justified, right-justified, I
2
S or DSP data
formats.
The PCM3000 can be programmed with a three-wire
serial interface for special features and data formats.
The PCM3001 can be pin-programmed for data
formats.
The PCM3000 and PCM3001 are fabricated using a
highly advanced CMOS process and are available in
a small 28-pin SSOP package. The PCM3000/3001
are suitable for a wide variety of cost-sensitive
consumer applications where good performance is
required.
Digital
Decimation
Filter
Digital Out
Serial Interface
and
Mode Control
Digital In
•
•
•
•
Lch In
Analog Front-End
Rch In
Delta-Sigma
Modulator
Lch Out
Rch Out
Low-Pass Filter
and
Output Buffer
Multilevel
Delta-Sigma
Modulator
Digital
Interpolation
Filter
Mode Control
System Clock
B0006-03
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 © 2000–2004, Texas Instruments Incorporated
PCM3000
PCM3001
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
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.
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= 25°C, V
DD
= V
CC
= 5 V, f
S
= 44.1 kHz, SYSCLK = 384 f
S,
CLKIO input, and 18-bit data, unless
otherwise noted
PARAMETER
DIGITAL INPUT/OUTPUT
Input Logic
V
IH (1)
V
IL (1)
I
IN (2)
I
IN (3)
V
IH (4)
V
IL (4)
I
IN (4)
V
OH (5)
V
OL
(5)
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input logic level
Input logic current
Input logic level
Input logic current
I
OUT
= –1.6 mA
I
OUT
= 3.2 mA
I
OUT
= –3.2 mA
I
OUT
= 3.2 mA
2
0.8
±1
–120
0.64 V
DD
0.28 V
DD
±40
4.5
0.5
4.5
0.5
4
(7)
256 f
S
1.024
1.536
2.048
384 f
S
512 f
S
44.1
11.2896
16.9344
22.5792
18
48
12.288
18.432
24.576
VDC
µA
VDC
µA
Output Logic
Output logic level
Output logic level
V
OH (6)
V
OL (6)
f
S
VDC
Clock Frequency
Sampling frequency
System clock frequency
ADC CHARACTERISTICS
Resolution
DC Accuracy
Gain mismatch, channel-to-channel
Gain error
Gain drift
Bipolar zero error
Bipolar zero drift
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
High-pass filter off
(8)
High-pass filter off
(8)
±1
±2
±20
±1.7
±20
±5
±5
% of FSR
ppm of FSR/°C
% of FSR
ppm of FSR/°C
Bits
kHz
MHz
Pins 16, 17, 18, 22, 25, 26, 27, 28: LRCIN, BCKIN, DIN, CLKIO, MC/FMT2, MD/FMT1, ML/FMT0, RSTB
Pins 16, 17, 18, 22: LRCIN, BCKIN, DIN, CLKIO (Schmitt-trigger input)
Pins 25, 26, 27, 28: MC/FMT2, MD/FMT1, ML/FMT0, RSTB (Schmitt-trigger input, 70-kΩ internal pullup resistor)
Pin 20: XTI
Pins 19, 22: DOUT, CLKIO
Pin 21: XTO
Refer to Application Bulletin
SBAA033
for information relating to operation at lower sampling frequencies.
High-pass filter disabled (PCM3000 only) to measure dc offset
2
PCM3000
PCM3001
www.ti.com
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25°C, V
DD
= V
CC
= 5 V, f
S
= 44.1 kHz, SYSCLK = 384 f
S,
CLKIO input, and 18-bit data, unless
otherwise noted
PARAMETER
Dynamic Performance
(9)
THD+N
Dynamic range
Signal-to-noise ratio
Channel separation
Digital Filter Performance
Pass band
Stop band
Pass-band ripple
Stop-band attenuation
Delay time (latency)
Digital High-Pass Filter Response
Cutoff frequency
ANALOG INPUT
Voltage range
Center voltage
Input impedance
Antialiasing Filter
Cutoff frequency
DAC CHARACTERISTICS
Resolution
DC Accuracy
Gain mismatch, channel-to-channel
Gain error
Gain drift
Bipolar zero error
Bipolar zero drift
Dynamic Performance
(9)
THD+N
Dynamic range
Signal-to-noise ratio (idle channel)
Channel separation
Digital Filter Performance
Pass band
Stop band
Pass-band ripple
Stop-band attenuation
Delay time
–35
11.1/f
S
0.555 f
S
±0.17
0.445 f
S
Hz
Hz
dB
dB
s
V
OUT
= 0 dB (full scale)
V
OUT
= –60 dB
EIAJ A-weighted
EIAJ A-weighted
90
92
90
–90
–34
97
98
95
–80
dB
dB
dB
dB
±1
±1
±20
±1
±20
±5
±5
% of FSR
% of FSR
ppm of FSR/°C
% of FSR
ppm of FSR/°C
18
Bits
–3 dB, C
EXT
= 470 pF
170
kHz
0 dB (full scale)
2.9
2.1
15
Vp-p
VDC
kΩ
–3 dB
0.019 f
S
mHz
–65
17.4/f
S
0.583 f
S
±0.05
0.454 f
S
Hz
Hz
dB
dB
s
f = 1 kHz, V
IN
= –0.5 dB
f = 1 kHz, V
IN
= –60 dB
f = 1 kHz, A-weighted
f = 1 kHz, A-weighted
90
90
88
–88
–31
94
94
92
–80
dB
dB
dB
dB
TEST CONDITIONS
MIN
TYP
MAX
UNIT
(9)
f
IN
= 1 kHz, using the System Two™ audio measurement system by Audio Precision™, rms mode with 20-kHz LPF, 400-Hz HPF
used for performance calculation or measurement.
3
PCM3000
PCM3001
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25°C, V
DD
= V
CC
= 5 V, f
S
= 44.1 kHz, SYSCLK = 384 f
S,
CLKIO input, and 18-bit data, unless
otherwise noted
PARAMETER
Analog Output
Voltage range
Center voltage
Load impedance
Analog Low-Pass Filter
Frequency response
POWER SUPPLY REQUIREMENTS
V
CC
V
DD
I
CC
, I
DD (10)
Voltage range
Supply current
Power dissipation
TEMPERATURE RANGE
T
A
T
stg
θ
JA
Operation
Storage
Thermal resistance
–25
–55
100
85
125
°C
°C
°C/W
V
CC
= V
DD
= 5 V
V
CC
= V
DD
= 5 V
4.5
4.5
5
5
32
160
5.5
5.5
50
250
VDC
VDC
mA
mW
f = 20 kHz
–0.16
dB
AC load
5
0.62 V
CC
0.5 V
CC
Vp-p
VDC
kΩ
TEST CONDITIONS
MIN
TYP
MAX
UNIT
(10) With no load on XTO and CLKIO
PACKAGE/ORDERING INFORMATION
PRODUCT
PCM3000E
28-pin SSOP
PCM3001E
DB
PCM3001E
PACKAGE
PACKAGE
CODE
PACKAGE
MARKING
PCM3000E
ORDERING
NUMBER
PCM3000E
PCM3000E/2K
PCM3001E
PCM3001E/2K
TRANSPORT
MEDIA
Rails
Tape and reel
Rails
Tape and reel
QUANTITY
47
2000
47
2000
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
Supply voltage: V
DD
, V
CC
1, V
CC
2
Supply voltage differences
GND voltage differences
Digital input voltage
Analog input voltage
Power dissipation
Input current (any pins except supplies)
Operating temperature
Storage temperature
Lead temperature, soldering
Package temperature (IR reflow, peak)
–0.3 V to 6.5 V
±0.1
V
±0.1
V
–0.3 to V
DD
+ 0.3 V, < 6.5 V
–0.3 to V
CC
1, V
CC
2 + 0.3 V, < 6.5 V
300 mW
±10
mA
–25°C to 85°C
–55°C to 125°C
260°C, 5 s
235°C
4
PCM3000
PCM3001
www.ti.com
SBAS055A – OCTOBER 2000 – REVISED OCTOBER 2004
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
Analog supply voltage, V
CC
1, V
CC
2
Digital supply voltage, V
DD
Analog input voltage, full scale (–0 dB)
Digital input logic family
Digital input clock frequency
Analog output load resistance
Analog output load capacitance
Digital output load capacitance
Operating free-air temperature, T
A
–25
System clock
Sampling clock
8.192
32
5
50
10
85
4.5
4.5
NOM
5
5
2.9
TTL
24.576
48
MHz
kHz
kΩ
pF
pF
°C
MAX
5.5
5.5
UNIT
VDC
VDC
Vp-p
5
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