TI PCM4104IPFBREP

PCM4104-EP
www.ti.com
SBAS419 – JUNE 2007
High-Performance, 24-Bit, 216-kHz Sampling, Four-Channel Audio
Digital-to-Analog Converter
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
(1)
Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of –40°C
to 85°C
Enhanced Diminishing Manufacturing Sources
(DMS) Support
Enhanced Product-Change Notification
Qualification Pedigree (1)
Four High-Performance, Multi-Level,
Delta-Sigma Digital-to-Analog Converters
Differential Voltage Outputs
– Full-Scale Output (Differential): 6.15 VPP
Supports Sampling Frequencies up to 216 kHz
Typical Dynamic Performance (24-Bit Data)
– Dynamic Range (A-Weighted): 118 dB
– THD+N: –100 dB
Linear Phase, 8× Oversampling Digital
Interpolation Filter
Digital De-Emphasis Filters for 32-kHz,
44.1-kHz, and 48-kHz Sampling Rates
Soft Mute Function
– All-Channel Mute via the MUTE Input Pin
– Per-Channel Mute Available in Software
Mode
Digital Attenuation (Software Mode Only)
– Attenuation Range: 0 dB to –119.5 dB
•
•
•
•
•
•
•
•
•
– 256 Steps with 0.5 dB per Step
Output Phase Inversion (Software Mode Only)
Zero Data Mute (Software Mode Only)
Audio Serial Port
– Supports Left-Justified, Right-Justified,
I2S™, and TDM Data Formats
– Accepts 16-, 18-, 20-, and 24-Bit Two's
Complement PCM Audio Data
Standalone or Software-Controlled
Configuration Modes
Four-Wire Serial Peripheral Interface (SPI™)
Port Provides Control Register Access in
Software Mode
Power Supplies: 5 V Analog, 3.3 V Digital
Power Dissipation
– 203 mW typical with fs = 48 kHz
– 220 mW typical with fs = 96 kHz
– 236 mW typical with fs = 192 kHz
Power-Down Modes
Small 48-Lead TQFP Package
APPLICATIONS
•
•
•
•
•
•
Digital Mixing Consoles
Digital Audio Workstations
Digital Audio Effects Processors
Broadcast Studio Equipment
Surround-Sound Processors
High-End A/V Receivers
Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
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.
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 © 2007, Texas Instruments Incorporated
PCM4104-EP
www.ti.com
SBAS419 – JUNE 2007
DESCRIPTION
The PCM4104 is a high-performance, four-channel digital-to-analog (D/A) converter designed for use in
professional audio applications. The PCM4104 supports 16- to 24-bit linear PCM input data, with sampling
frequencies up to 216 kHz. The PCM4104 features lower power consumption than most comparable stereo
audio D/A converters, making it ideal for use in high channel count applications by lowering the overall power
budget required for the D/A conversion subsystem.
The PCM4104 features delta-sigma architecture, employing a high-performance multi-level modulator combined
with a switched capacitor output filter. This architecture yields lower out-of-band noise and a high tolerance to
system clock phase jitter. Differential voltage outputs are provided for each channel and are well-suited to
high-performance audio applications. The differential outputs are easily converted to a single-ended output using
an external op amp IC.
The PCM4104 includes a flexible audio serial port interface, which supports standard and time division
multiplexed (TDM) formats. Support for TDM formats simplifies interfacing to DSP serial ports, while supporting
a cascade connection for two PCM4104 devices. In addition, the PCM4104 offers two configuration modes:
Standalone and Software-Controlled. The Standalone mode provides dedicated control pins for configuring a
subset of the available PCM4104 functions, while Software mode utilizes a serial peripheral interface (SPI) port
for accessing the complete feature set via internal control registers.
The PCM4104 operates from a 5-V analog power supply and a 3.3-V digital power supply. The digital I/O is
compatible with 3.3-V logic families. The PCM4104 is available in a TQFP-48 package.
ORDERING INFORMATION (1)
PRODUCT
PACKAGELEAD
PACKAGE
DESIGNATOR (2)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA, QUANTITY
PCM4104
TQFP-48
PFB
–40°C to 85°C
PCM4104EP
PCM4104IPFBREP
Tape and Reel, 2000
(1)
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
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)
PCM4104
UNIT
VCC
6.0
V
VDD
3.6
V
Ground voltage difference
Any AGND-to-AGND and AGND-to-DGND
±0.1
V
Digital input voltage
FS0, FS1, FMT0, FMT1, FMT2, CDOUT, CDIN, CCLK, CS,
DATA0, DATA1, BCK, LRCK, SCKI, SUB, DEM0, DEM1, MUTE,
RST, MODE
–0.3 to (VDD + 0.3)
V
Supply voltage
±10
mA
Operating temperature range
–40 to 85
°C
Storage temperature range, TSTG
–65 to 150
°C
Input current (any pin except supplies)
(1)
2
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to absolute
maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the
device at these or any other conditions beyond those specified is not implied.
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SBAS419 – JUNE 2007
ELECTRICAL CHARACTERISTICS
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, (unless otherwise noted) and a measurement
bandwidth from 10 Hz to 20 kHz, unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate
sampling modes, and 128fS for Quad Rate sampling mode.
PARAMETER
CONDITIONS
PCM4104
MIN
RESOLUTION
TYP
MAX
24
UNITS
Bits
DATA FORMAT
Left or Right Justified, I2S, and TDM
Audio data formats
Audio data word length
16
Binary data format
24
Bits
Two’s Complement Binary, MSB First
CLOCK RATES AND TIMING
Single rate sampling mode
System clock frequency
Sampling frequency
fSCLK
fS
6.144
36.864
Dual rate sampling mode
13.824
36.864
Quad rate sampling mode
13.824
36.864
Single rate sampling mode
24
54
Dual rate sampling mode
54
108
Quad rate sampling mode
108
216
24
MHz
kHz
SPI port data clock
fCCLK
SPI port data clock high time
tCCLKH
15
MHz
ns
SPI port data clock low time
tCCLKL
15
ns
VIH
2.0
DIGITAL INPUT/OUTPUT
Input logic level
Input logic current
Output logic level
V
VIL
IIH
VIN = 2.64 V (for –40°C to 85°C)
IIL
VIN = 0.66 V (for –40°C to 85°C)
VOH
IOH = –2 mA (for –40°C to 85°C)
VOL
IOL = +2 mA (for –40°C to 85°C)
0.8
V
1
10
μA
1
–10
μA
2.4
V
0.4
V
ANALOG OUTPUTS
Full-scale output voltage, differential
RL = 600 Ω
Bipolar zero voltage
Vpp
2.5
Output impedance
Switched capacitor filter frequency
response
6.15
V
5
f = 20 kHz, all sampling modes
Ohms
–0.2
dB
Gain error
0.5
% FSR
Gain mismatch, channel-to-channel
0.6
% FSR
Bipolar zero error
VCOM1 and VCOM2 output voltage
1
VCC = 5 V
VCOM1 and VCOM2 output current
mV
2.5
V
200
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μA
3
PCM4104-EP
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SBAS419 – JUNE 2007
ELECTRICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, (unless otherwise noted) and a measurement
bandwidth from 10 Hz to 20 kHz, unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate
sampling modes, and 128fS for Quad Rate sampling mode.
PARAMETER
CONDITIONS
PCM4104
MIN
TYP
MAX
–100
–94
UNITS
DYNAMIC PERFORMANCE WITH 24-BIT DATA (1)
fS = 48 kHz
f = 1 kHz at 0 dBFS
Total harmonic distortion +
noise
THD+N
f = 1 kHz at 0 dBFS (for –40°C to 85°C)
-91
f = 1 kHz at –60 dBFS
Dynamic range, A-weighted
dB
–56
f = 1 kHz at –60 dBFS
112
f = 1 kHz at –60 dBFS (for –40C to 85°C)
109
118
dB
dB
Idle channel SNR, A-weighted
All zero input data
119
dB
Idle channel SNR, unweighted
All zero input data
116
dB
110
dB
f = 1 kHz at 0 dBFS for active channel
Channel separation
f = 1 kHz at 0 dBFS for active channel (for
–40C to 85°C)
100
98
dB
fS = 96 kHz
f = 1 kHz at 0 dBFS,
BW = 10 Hz to 40 kHz
–100
f = 1 kHz at –60 dBFS,
BW = 10 Hz to 40 kHz
–53
Dynamic range, A-weighted
f = 1 kHz at –60 dBFS
118
dB
Idle channel SNR, A-weighted
All zero input data
119
dB
Idle channel SNR, unweighted
All zero input data, BW = 10 Hz to 40 kHz
113
dB
Channel separation
f = 1 kHz at 0 dBFS for active channel
110
dB
f = 1 kHz at 0 dBFS,
BW = 10 Hz to 40 kHz
–97
f = 1 kHz at –60 dBFS,
BW = 10 Hz to 40 kHz
–53
Dynamic range, A-weighted
f = 1 kHz at –60 dBFS
118
dB
Idle channel SNR, A-weighted
All zero input data
118
dB
Idle channel SNR, unweighted
All zero input data, BW = 10 Hz to 40 kHz
113
dB
Channel separation
f = 1 kHz at 0 dBFS for active channel
110
dB
Total harmonic distortion +
noise
THD+N
dB
fS = 192 kHz
Total harmonic distortion +
noise
THD+N
dB
DYNAMIC PERFORMANCE WITH 16-BIT DATA
fS = 44.1 kHz
Total harmonic distortion +
noise
THD+N
f = 1 kHz at 0 dBFS
–92
f = 1 kHz at –60 dBFS
–33
dB
Dynamic Range, A-weighted
f = 1 kHz at –60 dBFS
96
dB
Idle channel SNR, A-weighted (2)
All zero input data
118
dB
(2)
All zero input data
115
dB
Idle channel SNR, unweighted
DIGITAL FILTERS
(1)
(2)
4
Dynamic performance parameters are measured using an Audio Precision System Two Cascade or Cascade Plus test system. Input
data word length is 24 bits with triangular PDF dither added for dynamic range and THD+N tests. Idle channel SNR is measured with
both the soft and zero data mute functions disabled and 0% full–scale input data with no dither applied. The measurement bandwidth is
limited by using the Audio Precision 10 Hz high–pass filter in combination with either the AES17 20 kHz low-pass filter or AES17 40 kHz
low-pass filter. All A-weighted measurements are performed using the Audio Precision A-weighting filter in combination with either the
22 kHz or 80 kHz low-pass filter. Measurement mode is set to RMS for all parameters. The AVERAGE measurement mode will yield
better typical performance numbers.
Idle Channel SNR is not limited by word length.
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PCM4104-EP
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SBAS419 – JUNE 2007
ELECTRICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, (unless otherwise noted) and a measurement
bandwidth from 10 Hz to 20 kHz, unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate
sampling modes, and 128fS for Quad Rate sampling mode.
PARAMETER
Passband
CONDITIONS
PCM4104
MIN
TYP
UNITS
±0.002 dB
0.454fS
Hz
–3 dB
0.487fS
Hz
Stop Band
0.546fS
Hz
±0.002
Passband ripple
Stopband attenuation
MAX
0.546fs
–75
0.567fs
–82
Group delay
dB
dB
dB
29/fS
De-emphasis filter error
sec
0.1
dB
POWER SUPPLY
Supply Range
Analog supply, VCC
4.75
5.0
5.25
V
Digital supply, VDD
3.0
3.3
3.6
V
Power down current
VCC = 5 V, VDD = 3.3 V
Power-down supply current, ICC + IDD
RST = low, system and audio clocks off
Quiescent current
System and audio clocks applied, all 0s data
Analog supply, ICC
Digital supply, IDD
1
VCC = 5 V, fS = 48 kHz ( for –40°C to
85°C)
32
VCC = 5 V, fS = 96 kHz
32
VCC = 5 V, fS = 192 kHz
32
VDD = 3.3 V, fS = 48 kHz ( for –40°C to
85°C)
13
VDD = 3.3 V, fS = 96 kHz
18
VDD = 3.3 V, fS = 192 kHz
23
mA
45
mA
17
mA
VCC = 5 V, VDD = 3.3 V
Total power dissipation
fS = 48 kHz ( for –40°C to 85°C)
203
fS = 96 kHz
220
fS = 192 kHz
236
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286
mW
5
PCM4104-EP
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SBAS419 – JUNE 2007
PIN ASSIGNMENTS
VCOM1
VOUT2+
VOUT2−
VCC1
VREF2+
VREF2−
VREF3−
VREF3+
VCC2
VOUT3−
VOUT3+
VCOM2
TQFP PACKAGE
(TOP VIEW)
48
47
46
45
44
43
42
41
40
39
38
37
VOUT1+
1
36 VOUT4+
VOUT1−
2
35 VOUT4−
AGND1
3
34 AGND2
VREF1−
4
33 VREF4−
VREF1+
5
32 VREF4+
NC
6
NC
7
30 NC
MODE
8
29 FS1
RST
9
28 FS0
31 NC
PCM4104
16
17
18
19
20
21
VDD
DGND
CS
22
23
24
CDOUT
15
CDIN
14
CCLK
13
DATA1
25 FMT0
DATA0
DEM0 12
LRCK
26 FMT1
BCK
DEM1 11
SCKI
27 FMT2
SUB
MUTE 10
TERMINAL FUNCTIONS
TERMINAL
6
I/O
DESCRIPTION
NAME
NO.
VOUT1+
1
Output
Channel 1 Analog Output, Noninverted
VOUT1–
2
Output
Channel 1 Analog Output, Inverted
AGND1
3
Ground
Analog Ground
VREF1–
4
Input
Channel 1 Low Reference Voltage; Connect to AGND
VREF1+
5
Input
Channel 1 High Reference Voltage; Connect to VCC
NC
6
NC
7
MODE
8
Input
Operating Mode (0 = Standalone, 1= Software Controlled)
RST
9
Input
Reset/Power Down (Active Low)
MUTE
10
Input
All-Channel Soft Mute (Active High)
DEM1
11
Input
Digital De-Emphasis Filter Configuration
DEM0
12
Input
Digital De-Emphasis Filter Configuration
SUB
13
Input
Sub-Frame Assignment (TDM Formats Only)
SCKI
14
Input
System Clock
BCK
15
Input
Audio Bit (or Data) Clock
LRCK
16
Input
Audio Left/Right (or Word) Clock
DATA0
17
Input
Audio Data for Channels 1 and 2 (I2S, Left/Right Justified formats) or Audio Data for Channels
1 Through 4 for TDM Formats
DATA1
18
Input
Audio Data for Channels 3 and 4 (I2S, Left/Right Justified formats)
No Internal Connection
No Internal Connection
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SBAS419 – JUNE 2007
PIN ASSIGNMENTS (continued)
TERMINAL FUNCTIONS (continued)
TERMINAL
NAME
NO.
I/O
DESCRIPTION
VDD
19
Power
Digital Power Supply, 3.3 V
DGND
20
Ground
Digital Ground
CS
21
Input
Serial Peripheral Interface (SPI) Chip Select (Active Low)
CCLK
22
Input
Serial Peripheral Interface (SPI) Data Clock
CDIN
23
Input
Serial Peripheral Interface (SPI) Data Input
CDOUT
24
Output
FMT0
25
Input
Audio Data Format Configuration
FMT1
26
Input
Audio Data Format Configuration
FMT2
27
Input
Audio Data Format Configuration
FS0
28
Input
Sampling Mode Configuration
FS1
29
Input
Sampling Mode Configuration
NC
30
NC
31
VREF4+
32
VREF4–
AGND2
Serial Peripheral Interface (SPI) Data Output
No Internal Connection
No Internal Connection
Input
Channel 4 High Reference Voltage; Connect to VCC
33
Input
Channel 4 Low Reference Voltage; Connect to AGND
34
Ground
Analog Ground
VOUT4–
35
Output
Channel 4 Analog Output, Inverted
VOUT4+
36
Output
Channel 4 Analog Output, Noninverted
VCOM2
37
Output
DC Common-Mode Voltage for Channels 3 and 4, 2.5 V nominal
VOUT3+
38
Output
Channel 3 Analog Output, Noninverted
VOUT3–
39
Output
Channel 3 Analog Output, Inverted
VCC2
40
Power
Analog Power Supply, 5 V
VREF3+
41
Input
Channel 3 High Reference Voltage; Connect to VCC
VREF3–
42
Input
Channel 3 Low Reference Voltage; Connect to AGND
VREF2–
43
Input
Channel 2 Low Reference Voltage; Connect to AGND
VREF2+
44
Input
Channel 2 High Reference Voltage; Connect to VCC
VCC1
45
Power
Analog Power Supply, 5 V
VOUT2–
46
Output
Channel 2 Analog Output, Inverted
VOUT2+
47
Output
Channel 2 Analog Output, Noninverted
VCOM1
48
Output
DC Common-Mode Voltage for Channels 1 and 2, 2.5 V nominal
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PCM4104-EP
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SBAS419 – JUNE 2007
TYPICAL CHARACTERISTICS
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, and a measurement bandwidth from 10 Hz to 20 kHz,
unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for
Quad Rate sampling mode.
FFT PLOT
fS = 48kHz
fIN = 1kHz
0dBFS Amplitude
24−Bit Data
Amplitude (dB)
Amplitude (dB)
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20
100
1k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
10k 20k
fS = 48kHz
fIN = 1kHz
−20dBFS Amplitude
24−Bit Data
20
100
Frequency (Hz)
Amplitude (dB)
Amplitude (dB)
fS = 48kHz
fIN = 1kHz
−60dBFS Amplitude
24−Bit Data
20
100
1k
10k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20
20k
100
Amplitude (dB)
Amplitude (dB)
1k
10k
40k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20k
fS = 96kHz
fIN = 1kHz
−20dBFS Amplitude
24−Bit Data
20
Frequency (Hz)
8
10k
FFT PLOT
fS = 96kHz
fIN = 1kHz
0dBFS Amplitude
24−Bit Data
100
1k
Frequency (Hz)
FFT PLOT
20
20k
fS = 48kHz
Idle Channel Input
24−Bit Data
Frequency (Hz)
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
10k
FFT PLOT
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
1k
Frequency (Hz)
100
1k
Frequency (Hz)
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10k
40k
PCM4104-EP
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SBAS419 – JUNE 2007
TYPICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, and a measurement bandwidth from 10 Hz to 20 kHz,
unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for
Quad Rate sampling mode.
FFT PLOT
fS = 96kHz
fIN = 1kHz
−60dBFS Amplitude
24−Bit Data
Amplitude (dB)
Amplitude (dB)
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20
100
1k
10k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
40k
fS = 96kHz
Idle Channel Input
24−Bit Data
20
100
Frequency (Hz)
fS = 192kHz
fIN = 1kHz
0dBFS Amplitude
24−Bit Data
20
100
1k
10k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
40k
20
100
Amplitude (dB)
Amplitude (dB)
1k
10k
40k
10k
40k
FFT PLOT
fS = 192kHz
fIN = 1kHz
−60dBFS Amplitude
24−Bit Data
100
1k
Frequency (Hz)
FFT PLOT
20
40k
fS = 192kHz
fIN = 1kHz
−20dBFS Amplitude
24−Bit Data
Frequency (Hz)
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
10k
FFT PLOT
Amplitude (dB)
Amplitude (dB)
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
1k
Frequency (Hz)
10k
40k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
fS = 192kHz
Idle Channel Input
24−Bit Data
20
Frequency (Hz)
100
1k
Frequency (Hz)
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PCM4104-EP
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SBAS419 – JUNE 2007
TYPICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, and a measurement bandwidth from 10 Hz to 20 kHz,
unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for
Quad Rate sampling mode.
FFT PLOT
fS = 44.1kHz
fIN = 1kHz
0dBFS Amplitude
16−Bit Data
Amplitude (dB)
20
100
1k
10k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20k
fS = 44.1kHz
fIN = 1kHz
−20dBFS Amplitude
16−Bit Data
20
100
1k
Frequency (Hz)
fS = 44.1kHz
fIN = 1kHz
−60dBFS Amplitude
16−Bit Data
20
100
1k
10k
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
20k
20
100
1k
THD+N vs AMPLITUDE
−80
fS = 48kHz
fIN = 1kHz
24−Bit Data
−85
−90
fS = 96kHz
fIN = 1kHz
24−Bit Data
−95
Amplitude (dBFS)
10
Amplitude (dBFS)
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0
−20
−10
−40
−30
−60
−50
−80
−70
−110
0
−20
−10
−40
−30
−60
−50
−80
−70
−90
−110
−100
−130
−120
−120
−120
−150
−115
−140
−115
−100
−110
−130
−110
−105
−120
−105
−100
−150
−100
−140
−95
THD+N (dB)
THD+N (dB)
−90
20k
Frequency (Hz)
THD+N vs AMPLITUDE
−85
10k
fS = 44.1kHz
Idle Channel Input
16−Bit Data
Frequency (Hz)
−80
20k
FFT PLOT
Amplitude (dB)
Amplitude (dB)
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
10k
Frequency (Hz)
−90
Amplitude (dB)
FFT PLOT
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−110
−120
−130
−140
−150
−160
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TYPICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, and a measurement bandwidth from 10 Hz to 20 kHz,
unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for
Quad Rate sampling mode.
THD+N vs AMPLITUDE
−80
THD+N vs AMPLITUDE
−80
fS = 192kHz
fIN = 1kHz
24−Bit Data
−85
−90
−90
−95
Amplitude (dBFS)
0
−20
−10
−40
−30
−60
−50
−80
−70
−90
−150
0
−10
−30
−20
−50
−40
−70
−60
−90
−80
−110
−100
−130
−120
−120
−120
−150
−115
−140
−115
−110
−110
−100
−110
−105
−130
−105
−100
−120
−100
−140
THD+N (dB)
−95
THD+N (dB)
fS = 44.1kHz
fIN = 1kHz
16−Bit Data
−85
Amplitude (dBFS)
FREQUENCY RESPONSE
PASSBAND RIPPLE
0
0.003
−20
0.002
−60
Amplitude (dB)
Amplitude (dB)
−40
−80
−100
−120
0.001
0
−0.001
−0.002
−140
−160
−0.003
0
1
2
3
4
0
0.1
0.2
Frequency (x fS)
DE−EMPHASIS FILTER RESPONSE (fS = 32kHz)
0.4
0.5
DE−EMPHASIS ERROR (f S = 32kHz)
0.0
0.5
−1.0
0.4
−2.0
0.3
−3.0
0.2
−4.0
0.1
Error (dB)
Level (dB)
0.3
Frequency (x fS)
−5.0
−6.0
0.0
−0.1
−7.0
−0.2
−8.0
−0.3
−9.0
−0.4
−10.0
−0.5
0
2
4
6
8
10
12
14
0
Frequency (kHz)
2
4
6
8
10
12
14
Frequency (kHz)
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TYPICAL CHARACTERISTICS (continued)
All parameters are specified at TA = 25°C with VCC = 5 V, VDD = 3.3 V, and a measurement bandwidth from 10 Hz to 20 kHz,
unless otherwise noted. System clock frequency is equal to 256fS for Single and Dual Rate sampling modes, and 128fS for
Quad Rate sampling mode.
DE−EMPHASIS ERROR (f S = 44.1kHz)
0.5
−1.0
0.4
−2.0
0.3
−3.0
0.2
−4.0
0.1
Error (dB)
Level (dB)
DE−EMPHASIS FILTER RESPONSE (fS = 44.1kHz)
0.0
−5.0
−6.0
0.0
−0.1
−7.0
−0.2
−8.0
−0.3
−9.0
−0.4
−10.0
−0.5
0
2
4
6
8
10
12
14
16
18
20
0
2
4
6
Frequency (kHz)
10
12
14
16
18
20
18
22
DE− EMPHASIS ERROR (fS = 48kHz)
0.0
0.5
−1.0
0.4
−2.0
0.3
−3.0
0.2
−4.0
0.1
Error (dB)
Level (dB)
DE− EMPHASIS FILTER RESPONSE (fS = 48kHz)
−5.0
−6.0
0.0
−0.1
−7.0
−0.2
−8.0
−0.3
−9.0
−0.4
−10.0
−0.5
0
2
4
6
8
10
12
14
16
18
22
0
Frequency (kHz)
12
8
Frequency (kHz)
2
4
6
8
10
12
Frequency (kHz)
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PRODUCT OVERVIEW
The PCM4104 is a high-performance, four-channel D/A converter designed for professional audio systems. The
PCM4104 supports 16- to 24-bit linear PCM input data and sampling frequencies up to 216 kHz. The PCM4104
utilizes an 8× oversampling digital interpolation filter, followed by a multi-level delta-sigma modulator with a
single pole switched capacitor output filter. This architecture provides excellent dynamic and sonic performance,
as well as high tolerance to clock phase jitter. Functional block diagrams, showing both Standalone and
Software modes, are shown in Figure 1 and Figure 2.
The PCM4104 incorporates a flexible audio serial port, which accepts 16- to 24-bit PCM audio data in both
standard audio formats (Left Justified, Right Justified, and Philips I2S) and TDM data formats. The TDM formats
are especially useful for interfacing to the synchronous serial ports of digital signal processors. The TDM formats
support daisy-chaining of two PCM4104 devices on a single three-wire serial interface (for sampling frequencies
up to 108 kHz), forming a high-performance eight-channel D/A conversion system.
The PCM4104 offers two modes for configuration control: Software and Standalone. Software mode makes use
of a four-wire SPI port to access internal control registers, allowing configuration of the full PCM4104 feature set.
Standalone mode offers a more limited subset of the functions available in Software mode, while allowing for a
simplified pin-programmed configuration mode.
VREF1+
LRCK
BCK
DATA0
DATA1
D/A Converter
and
Output Filter
Audio
Serial
Port
VOUT1+
VOUT1−
VREF1−
VCOM1
VREF2+
RST
MUTE
DEM0
DEM1
SUB
FMT0
FMT1
FMT2
FS0
FS1
MODE
D/A Converter
and
Output Filter
Control
VOUT2+
VOUT2−
VREF2−
Digital
Filtering
and
Functions
VREF3+
D/A Converter
and
Output Filter
VOUT3+
VOUT3−
VREF3−
VCOM2
VREF4+
SCKI
System Clock
and
Timing
D/A Converter
and
Output Filter
VOUT4+
VOUT4−
VREF4−
VDD
DGND
Digital
Power
Analog
Power
VCC 1
AGND1
VCC21
AGND2
Figure 1. Functional Block Diagram for Standalone Mode
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PRODUCT OVERVIEW (continued)
VREF1+
LRCK
BCK
DATA0
DATA1
D/A Converter
and
Output Filter
Audio
Serial
Port
VOUT1+
VOUT1−
VREF1−
VCOM1
VREF2+
D/A Converter
and
Output Filter
RST
MUTE
SUB
CS
CCLK
CDIN
CDOUT
MODE
Control
and
SPI Port
Digital
Filtering
and
Functions
VOUT2+
VOUT2−
VREF2−
VREF3+
D/A Converter
and
Output Filter
VOUT3+
VOUT3−
VREF3−
VDD
VCOM2
VREF4+
System Clock
and
Timing
SCKI
D/A Converter
and
Output Filter
VOUT4+
VOUT4−
VREF4−
VDD
DGND
Digital
Power
Analog
Power
VCC1
AGND1
VCC21
AGND2
Figure 2. PCM4104 Functional Block Diagram for Software Mode
ANALOG OUTPUTS
The PCM4104 provides four differential voltage outputs, corresponding to audio channels 1 through 4. VOUT1+
(pin 1) and VOUT1– (pin 2) correspond to Channel 1. VOUT2+ (pin 47) and VOUT2– (pin 46) correspond to Channel
2. VOUT3+ (pin 38) and VOUT3– (pin 39) correspond to Channel 3. VOUT4+ (pin 36) and VOUT4– (pin 35)
correspond to Channel 4.
Each differential output is typically capable of providing 6.15-V full-scale (differential) into a 600 Ω output load.
The output pins are internally biased to the common-mode (or bipolar zero) voltage, which is nominally VCC/2.
The output section of each D/A converter channel includes a single-pole, switched capacitor low-pass filter
circuit. The switched capacitor filter response tracks with the sampling frequency of the D/A converter and
provides attenuation of the out-of-band noise produced by the delta-sigma modulator. An external two-pole
continuous time filter is recommended to further reduce the out-of-band noise energy and to band limit the
output spectrum to frequencies suitable for audio reproduction. Refer to the Applications Information section of
this data sheet for recommended output filter circuits.
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PRODUCT OVERVIEW (continued)
VOLTAGE REFERENCES
The PCM4104 includes high and low reference pins for each output channel. VREF1+ (pin 5) and VREF1– (pin 4)
correspond to Channel 1. VREF2+ (pin 44) and VREF2– (pin 43) correspond to Channel 2. VREF3+ (pin 41) and
VREF3– (pin 42) correspond to Channel 3. VREF4+ (pin 32) and VREF4– (pin 33) correspond to Channel 4.
The high reference (+) pin may be connected to the corresponding VCC supply or an external 5-V reference,
while the low reference (–) pin is connected to analog ground. A 0.01-μF bypass capacitor should be placed
between the corresponding high and low reference pins. An X7R ceramic chip capacitor is recommended for this
purpose. In some cases, a larger capacitor may need to be placed in parallel with the 0.01-μF capacitor, with the
value of the larger capacitor being dependent upon the low-frequency power-supply noise present in the system.
Typical values may range from 1 μF to 10 μF. Low ESR tantalum or multilayer ceramic chip capacitors are
recommended. Figure 3 illustrates the recommended connections for the reference pins.
VCC
VREF+(1)
0.01µF
0.1µF to 10µF
VREF− (1)
VCOM1
VCOM2
0.1µF
0.1µF
(1) Capacitor(s) required for each of the four reference pairs.
Figure 3. Recommended Connections for Voltage Reference and Common-Mode Output Pins
In addition to the reference pins, there are two common-mode voltage output pins, VCOM1 (pin 48) and VCOM2
(pin 37). These pins are nominally set to a value equal to VCC/2 by internal voltage dividers. The VCOM1 pin is
common to both Channels 1 and 2, while the VCOM2 pin is common to Channels 3 and 4. A 0.1-μF X7R ceramic
chip capacitor should be connected between the common-mode output pin and analog ground. The
common-mode outputs are used primarily to bias external output circuitry.
SAMPLING MODES
The PCM4104 can operate in one of three sampling modes: Single Rate, Dual Rate, or Quad Rate. Sampling
modes are selected by using the FS[1:0] bits in Control Register 6 in Software mode, or by using the FS0 (pin
28) and FS1 (pin 29) inputs in Standalone mode.
The Single Rate mode allows sampling frequencies up to and including 54 kHz. The D/A converter performs
128× oversampling of the input data in Single Rate mode.
The Dual Rate mode allows sampling frequencies greater than 54 kHz, up to and including 108 kHz. The D/A
converter performs 64× oversampling of the input data in Dual Rate mode.
The Quad Rate mode allows sampling frequencies greater than 108 kHz, up to and including 216 kHz. The D/A
converter performs 32× oversampling of the input data in Quad Rate mode.
Refer to Table 1 for examples of system clock requirements for common sampling frequencies.
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PRODUCT OVERVIEW (continued)
SYSTEM CLOCK REQUIREMENTS
The PCM4104 requires a system clock, applied at the SCKI (pin 14) input. The system clock operates at an
integer multiple of the input sampling frequency, or fS. The multiples supported include 128fS, 192fS, 256fS,
384fS, 512fS, or 768fS. The system clock frequency is dependent upon the sampling mode. Table 1 shows the
required system clock frequencies for common audio sampling frequencies. Figure 4 shows the system clock
timing requirements.
Although the architecture of the PCM4104 is tolerant to phase jitter on the system clock, it is recommended that
the user provide a low jitter clock (100 picoseconds or less) for optimal performance.
Table 1. Sampling Modes and System Clock Frequencies for Common Audio Sampling Rates
SAMPLING
MODE
SAMPLING
FREQUENCY,＝fS
(kHz)
SYSTEM CLOCK FREQUENCY (MHz)
128fS
192fS
256fS
384fS
512fS
768fS
Single Rate
32
n/a
n/a
8.192
12.288
16.384
24.576
Single Rate
44.1
n/a
n/a
11.2896
16.9344
22.5792
33.8688
Single Rate
48
n/a
n/a
12.288
18.432
24.576
36.864
Dual Rate
88.2
n/a
n/a
22.5792
33.8688
n/a
n/a
Dual Rate
96
n/a
n/a
24.576
36.864
n/a
n/a
Quad Rate
176.4
22.5792
33.8688
n/a
n/a
n/a
n/a
Quad Rate
192
24.576
36.864
n/a
n/a
n/a
n/a
t SCKIH
SCKI
t SCKIL
t SCKI
PARAMETER
DESCRIPTION
MIN
t SCKI
System Clock Period
26
ns
t SCKIH
System Clock High Pulse Time
12
ns
t SCKIL
System Clock Low Pulse Time
12
ns
MAX
Figure 4. System Clock Timing Requirements
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RESET OPERATION
The PCM4104 includes three reset functions: power-on, external, and software-controlled. This section
describes each of the three reset functions.
On power up, the internal reset signal is forced low, forcing the PCM4104 into a reset state. The power-on reset
circuit monitors the VDD, VCC1, and VCC2 power supplies. When VDD exceeds 2 V (margin of error is ±400 mV)
and VCC1 and VCC2 exceed 4 V (margin of error is ±400 mV), the internal reset signal is forced high. The
PCM4104 then waits for the system clock input (SCKI) to become active. Once the system clock has been
detected, the initialization sequence begins. The initialization sequence requires 1024 system clock periods for
completion. When the initialization sequence is completed, the PCM4104 is ready to accept audio data at the
audio serial port. Figure 5 shows the power-on reset sequence timing.
If the PCM4104 is configured for Software mode control via the SPI port, all control registers will be reset to their
default state during the initialization sequence. In both Standalone and Software modes, the analog outputs for
all four channels are muted during the reset and initialization sequence. While in mute state, the analog output
pins are driven to the bipolar zero voltage, or VCC/2.
The user may force a reset initialization sequence at any time while the system clock input is active by utilizing
the RST input (pin 9). The RST input is active low, and requires a minimum low pulse width of 40 nanoseconds.
The low-to-high transition of the applied reset signal will force an initialization sequence to begin. As in the case
of the power-on reset, the initialization sequence requires 1024 system clock periods for completion. Figure 6
illustrates the reset sequence initiated when using the RST input.
A reset initialization sequence is available in Software mode, using the RST bit in Control Register 6. The RST
bit is active high. When RST is set to 1, a reset sequence is initiated in the same fashion as an external reset
applied at the RST input.
Figure 7 shows the state of the analog outputs for the PCM4104 before, during and after the reset operations.
~ 4.0V
VCC1
VCC2
0V
VDD
~ 2.0V
0V
Internal
Reset
1024 System Clock Periods
Required for Initialization
0V
SCKI
0V
System Clock
Indeterminate
or Inactive
Figure 5. Power-Up Reset Timing
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t RSTL > 40ns
RST
0V
Internal
Reset
1024 System Clock Periods
Required for Initialization
0V
SCKI
0V
Figure 6. External Reset Timing
Internal
Reset
Analog
Outputs
HI
LO
Outputs are On
Outputs are Muted
Outputs are Muted
for 1024 SCKI Periods
Outputs are On
Initialization
Period
Figure 7. Analog Output State for Reset Operations
POWER-DOWN OPERATION
The PCM4104 can be forced to a power-down state by applying a low level to the RST input for a minimum of
65,536 system clock cycles. In power-down mode, all internal clocks are stopped, and analog outputs are set to
a high-impedance state. The system clock can then be removed to conserve additional power. In the case of
system clock restart when exiting the power-down state, the clock should be restarted prior to a low-to-high
transition of the reset signal at the RST input. The low-to-high transition of the reset signal initiates a reset
sequence, as described in the Reset Operation section of this data sheet.
In Software mode, two additional power-down controls are provided. The PDN12 and PDN34 bits are located in
Control Register 6 and may be used to power-down channel pairs, with PDN12 corresponding to channels 1 and
2, and PDN34 corresponding to channels 3 and 4. This allows the user to conserve power when a channel pair
is not in use. The power-down function is the same as described in the previous paragraph for the
corresponding channel pair. Unlike the power-down function implemented using the RST input, setting a
power-down bit will immediately power down the corresponding channel pair.
When exiting power-down mode, either by forcing the RST input high or by setting the PDN12 or PDN34 bits
low, the analog outputs will transition from the high-impedance state to the mute state, with the output level set
to the bipolar zero voltage. There may be a small transient created by this transition, since internal capacitor
charge can initially force the output to a voltage above or below bipolar zero, or external circuitry can pull the
outputs to some other voltage level. Figure 8 illustrates the state of the analog outputs before, during, and after
a power-down event.
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VDD
RST
0V
Analog
Outputs
Outputs are On
Outputs are
Muted
Outputs Transition
from High Impedance
to Muted State
Outputs are
High Impedance
Outputs are On
1024
SCKI Periods
Required for
Initialization
65,536
SCKI Periods
HI
PDN12
PDN34
Analog
Outputs
LO
Outputs Transition
from High Impedance
to Muted State
Outputs are
High Impedance
Outputs are On
1024
SCKI Periods
Required for
Initialization
Outputs are On
Outputs are On
Transitioning
to Driven State
Figure 8. Analog Output State for Power-Down Operations
AUDIO SERIAL PORT
The audio serial port provides a common interface to digital signal processors, digital interface receivers (AES3,
S/PDIF), and other digital audio devices. The port operates as a slave to the processor, receiver, or other clock
generation circuitry. Figure 9 illustrates a typical audio serial port connection to a processor or receiver. The
audio serial port is comprised of four signal pins: BCK (pin 15), LRCK (pin 16), DATA0 (pin 17), and DATA1 (pin
18).
DSP
FSX
CLKX
PCM4104
LRCK
BCK
DX0
DATA0
DX1
DATA1
SCKI
System Clock
Figure 9. Audio Serial Port Connections for Left Justified, Right Justified, and I2S Formats
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The LRCK pin functions as either the left/right word clock or the frame synchronization clock, depending upon
the data format selected. The LRCK frequency is equal to the input sampling frequency (44.1 kHz, 48 kHz, 96
kHz, etc.).
The BCK pin functions as the serial data clock input. This input is referred to as the bit clock. The bit clock runs
at an integer multiple of the input sampling frequency. Typical multiples include 32, 48, 64, 96, 128, 192, and
256, depending upon the data format, word length, and system clock frequency selected.
The DATA0 and DATA1 pins are the audio data inputs. When using Left Justified, Right Justified, or I2S data
formats, the DATA0 pin carries the audio data for channels 1 and 2, while the DATA1 pin carries the audio data
for channels 3 and 4. When using TDM data formats, DATA0 carries the audio data for all four channels, while
the DATA1 input is ignored.
The audio serial port data formats are shown in Figure 10, Figure 13, and Figure 14. Data formats are selected
by using the FMT[2:0] bits in Control Register 7 in Software mode, or by using the FMT0 (pin 25), FMT1 (pin
26), and FMT2 (pin 27) inputs in Standalone mode. In Software mode, the user may also select the phase
(normal or inverted) for the LRCK input, as well as the data sampling edge for the BCK input (either rising or
falling edge). The reset default conditions for the Software mode are normal phase for LRCK and rising edge
data sampling for BCK.
The Left Justified, Right Justified, and I2S data formats are similar to one another, with differences in data
justification and word length. The PCM audio data must be two's complement binary, MSB first. Figure 10
provides illustrations for these data formats.
The TDM formats carry the information for four or eight channels on a single data line. The DATA0 input (pin 17)
is used as the data input for the TDM formats. The data is carried in a time division multiplexed fashion; hence,
the TDM acronym used to describe this format. Figure 12 shows the TDM connection of two PCM4104 devices.
The data for each channel is assigned one of the time slots in the TDM frame, as shown in Figure 13 and
Figure 14. The sub-frame assignment for each PCM4104 is determined by the state of the SUB input (pin 13).
When SUB is forced low, the device is assigned to sub-frame 0. When SUB is forced high, the device is
assigned to sub-frame 1.
Ch. 1 (DATA0) or Ch. 3 (DATA1)
Ch. 2 (DATA0) or Ch. 4 (DATA1)
LRCK
BCK
DATA0
DATA1
MSB
LSB
MSB
LSB
(a) Left−Justified Data Format
LRCK
BCK
DATA0
DATA1
MSB
LSB
MSB
LSB
(b) Right−Justified Data Format
LRCK
BCK
DATA0
DATA1
MSB
LSB
MSB
LSB
(c) I2S Data Format
1/fS
Figure 10. Left Justified, Right Justified, and I2S Data Formats
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LRCK
t LRBKD
t BKLRD
BCK
(BCKE = 0)
t BCKP
t BCKHL
BCK
(BCKE = 1)
DATA0
DATA1
t DS
t DH
PA R A M E TER
t BCKP
t BCKHL
t LRBKD
t BKLRD
t DS
t DH
−
D ES C R IP T IO N
M IN
MAX
U N ITS
BCK Cycle Time
70
ns
BCK High/Low Time
LRCK Edge to BCK Sampling Edge Delay
BCK Sampling Edge to LRCK Edge Delay
30
10
10
ns
ns
ns
Data Setup Time
Data Hold Time
LRCK Duty Cycle
10
10
50
ns
ns
%
Figure 11. Audio Serial Port Timing for Left Justified, Right Justified, and I2S Data Formats
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Device #1
(Sub−Frame 0)
DSP
PCM4104
FSX
LRCK
CLKX
BCK
DX
DATA0
SUB
SCKI
Device #2
(Sub−Frame 1)
PCM4104
LRCK
BCK
DATA0
SUB
SCKI
VCC
System Clock
Figure 12. TDM Connection
TDM Data Formats − Long Frame
Supported for Single and Dual Rate Sampling Modes Only
LRCK
Normal, Zero BCK Delay
LRCK
Normal, One BCK Delay
LRCK
Inverted, Zero BCK Delay
LRCK
Inverted, One BCK Delay
DATA0
Supports 8 Channels, or
two PCM4104 devices.
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
Slot 8
Ch. 1
Ch. 2
Ch. 3
Ch. 4
Ch. 1
Ch. 2
Ch. 3
Ch. 4
Sub−Frame 0
(SUB = 0)
Sub−Frame 1
(SUB = 1)
One Frame
BCK = 192f S or 256fS
In the case of BCK = 192fS , each time slot is 24 bits long and contains the 24−bit audio data for the corresponding channel.
In the case of BCK = 256fS , each time slot is 32 bits long and contains the 24−bit audio data for the corresponding channel.
The audio data is left justified in the time slot, with the the least significant 8 bits of each time slot being don’t care bits.
Audio data is always presented in two’s complement, MSB−first format.
Figure 13. TDM Data Formats: Long Frame
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TDM Data Formats − Short Frame
All Sampling Modes Supported
LRCK
Normal, Zero BCK Delay
LRCK
Normal, One BCK Delay
LRCK
Inverted, Zero BCK Delay
LRCK
Inverted, One BCK Delay
DATA0
Supports 4 Channels, or
one PCM4104 device.
Slot 1
Slot 2
Slot 3
Slot 4
Ch. 1
Ch. 2
Ch. 3
Ch. 4
One Frame
BCK = 96fS or 128fS
(the SUB pin is ignored when using a Short Frame)
In the case of BCK = 96fS, each time slot is 24 bits long and contains the 24−bit audio data for the corresponding channel.
In the case of BCK = 128fS, each time slot is 32 bits long and contains the 24−bit audio data for the corresponding channel.
The audio data is left justified in the time slot, with the the least significant 8 bits of each time slot being don’t care bits.
Audio data is always presented in two’s complement, MSB−first format.
Figure 14. TDM Data Formats: Short Frame
One Frame
t LRCKP
t BNF
LRCK
t BKBF
t LRBKD
BCK
(BCKE = 0)
BCK
(BCKE = 1)
DATA0
t DS
t DH
PA R A M E T ER
D E SC R IPT IO N
M IN
MAX
U N IT S
t LRCKP
LRCK pulse width
1/fBCK
ns
t LRBKD
LRCK active edge to BCK sampling edge delay
12
ns
t DS
Data setup time
10
ns
t DH
Data hold time
ns
t BNF
LRCK transition before new frame
10
1/fBCK
t BKBF
BCK sampling edge to new frame delay
12
ns
ns
Figure 15. TDM Timing
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STANDALONE MODE CONFIGURATION
Standalone mode is selected by forcing the MODE input (pin 8) low. Standalone mode operation provides a
subset of the functions available in Software mode, while providing an option for a simplified control model.
Standalone configuration is accomplished by either hardwiring or driving a small set of input pins with external
logic or switches. Standalone mode functions include sampling mode and audio data format selection, an
all-channel soft mute function, and digital de-emphasis filtering. The following paragraphs provide a brief
description of each function available when using Standalone mode.
Sampling Mode
The sampling mode is selected using the FS0 (pin 28) and FS1 (pin 29) inputs. A more detailed discussion of
the sampling modes was provided in an earlier section of this data sheet. Table 2 summarizes the sampling
mode configuration for Standalone mode.
Table 2. Sampling Mode Configuration
FS1
FS0
SAMPLING MODE
0
0
Single Rate
0
1
Dual Rate
1
0
Quad Rate
1
1
- Not Used -
Audio Data Format
The audio data format is selected using the FMT0 (pin 25), FMT1 (pin 26), and FMT2 (pin 27) inputs. A detailed
discussion of the audio serial port operation and the corresponding data formats was provided in the Audio
Serial Port section on page 19. For Standalone mode, the LRCK polarity is always normal, while the serial audio
data is always sampled on the rising edge of the BCK clock. Table 3 shows the audio data format configuration
for Standalone mode.
Table 3. Audio Data Format Configuration
FMT2
FMT1
FMT0
AUDIO DATA FORMAT
0
0
0
24-bit left justified
0
0
1
24-bit I2S
0
1
0
TDM with zero BCK delay
0
1
1
TDM with one BCK delay
1
0
0
24-bit right justified
1
0
1
20-bit right justified
1
1
0
18-bit right justified
1
1
1
16-bit right justified
Soft Mute Function
The MUTE input (pin 10) may be used in either the Standalone or Software modes to simultaneously mute the
four output channels. The soft mute function slowly ramps the digital output attenuation from its current setting to
the mute level, minimizing or eliminating audible artifacts. Table 4 summarizes MUTE function operation.
Table 4. Mute Function Configuration
24
MUTE
ANALOG OUTPUTS
0
On (mute disabled)
1
Muted
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Digital De-Emphasis
This is a global digital function (common to all four channels) and provides de-emphasis of the higher frequency
content within the 20-kHz audio band. De-emphasis is required when the input audio data has been
pre-emphasized. Pre-emphasis entails increasing the amplitude of the higher frequency components in the
20-kHz audio band using a standardized filter function in order to enhance the high-frequency response. The
PCM4104 de-emphasis filters implement the standard 50/15 μs de-emphasis transfer function commonly used in
digital audio applications.
De-emphasis filtering is available for three input sampling frequencies in Single Rate sampling mode: 32 kHz,
44.1 kHz, and 48 kHz. De-emphasis is not available when operating in Dual or Quad Rate sampling modes. The
de-emphasis filter is selected using the DEM0 (pin 12) and DEM1 (pin 11) inputs. Table 5 illustrates the
de-emphasis filter configuration for Standalone mode.
Table 5. Digital De-Emphasis Configuration
DEM1
DEM0
DIGITAL DE-EMPHASIS MODE
0
0
Off (de-emphasis disabled)
0
1
48 kHz
1
0
44.1 kHz
1
1
32 kHz
SOFTWARE MODE CONFIGURATION
Software mode is selected by forcing the MODE input(pin 8) high. Software mode operation provides full access
to the features of the PCM4104 by allowing the writing and reading of on-chip control registers. This is
accomplished using the four-wire SPI port. The following paragraphs provide a brief description of each function
available when using Software mode.
Digital Attenuation
The audio signal for each channel can be attenuated in the digital domain using this function. Attenuation
settings from 0 dB (unity gain) to –119.5 dB are provided in 0.5 dB steps. In addition, the attenuation level may
be set to the mute state. The rate of change for the digital attenuation function is one 0.5 dB step for every eight
LRCK periods. Each channel has its own independent attenuation control, accessed using control registers 1
through 4. The reset default setting for all channels is 0 dB, or unity gain (no attenuation applied).
Digital De-Emphasis
The de-emphasis function is accessed through Control Register 5 using the DEM[1:0] bits. The reset default
setting is that the de-emphasis is disabled for all four channels. De-emphasis filter operation is described in the
Standalone Mode Configuration section of this data sheet.
Soft Mute
Each of the four D/A converter channels has its own independent soft mute control, located in Control Register
5.
The reset default is normal output for all four channels with the soft mute function disabled. The MUTE input (pin
10) also functions in Software mode, with a high input forcing soft mute on all four channels.
Zero Data Mute
The PCM4104 includes a zero data detection and mute function in Software mode. This function automatically
mutes a given channel when 1024 consecutive LRCK periods of all zero data are detected for that channel. The
zero data mute function is enabled and disabled using the ZDM bit in Control Register 5. The zero data mute
function is disabled by default on power up or reset.
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Output Phase Reversal
The PCM4104 includes an output phase reversal function, which provides the ability to invert the output phase
for all four channels, either for testing or for matching various output circuit configurations. This function is
controlled using the PHASE bit, located within Control Register 5. The output phase is set to noninverted by
default on power up or reset.
Sampling Mode
Sampling mode configuration was discussed earlier in this data sheet, with Table 1 providing a reference for
common sampling and system clock frequencies. The FS0 and FS1 bits located in Control Register 6 are used
to set the sampling mode. The sampling mode defaults to Single Rate on power up or reset.
Power-Down Modes
The power-down control bits are located in Control Register 6. These bits are used to power down pairs of D/A
converters within the PCM4104. The PDN12 bit is used to power down channels 1 and 2, while the PDN34 bit is
used to power down channels 3 and 4. When a channel pair is powered down, it ignores the audio data inputs
and sets its outputs to a high-impedance state. By default, the power-down bits are disabled on power up or
reset.
Software Reset
This reset function allows a reset sequence to be initiated under software control. All control registers are reset
to their default state. The reset bit, RST, is located in Control Register 6. Setting this bit to 1 initiates a one-time
reset sequence. The RST bit is cleared by the initialization sequence.
Audio Data Formats, LRCK Polarity, and BCK Sampling Edge
Control Register 7 is used to configure the PCM4104 audio serial port. Audio serial port operation was
discussed previously in this data sheet; refer to that section for more details regarding the functions controlled by
this register. The control register definitions provide additional information regarding the register functions and
their default settings.
SERIAL PERIPHERAL INTERFACE (SPI) PORT OPERATION
The SPI port is a four-wire synchronous serial interface that is used to access the on-chip control registers when
the PCM4104 is configured for Software mode operation. The CDIN input (pin 23) is the serial data input for the
port, while CDOUT (pin 24) is used for reading back control register contents in a serial fashion. The CS input
(pin 21) functions as the chip select input, and must be forced low for register write or read access. The CCLK
input (pin 22) functions as the serial data clock, used to clock data in and out of the port. Data is clocked into the
port on the rising edge of CCLK, while data is clocked out of the port on the falling edge of CCLK.
There are three modes of operation supported for the SPI port: Single Register, Continuous, and
Auto-Increment.
The Single Register and Continuous modes are similar to one another. In Continuous mode, instead of bringing
the CS input high after writing or reading a single register, the CS input is held low and a new control byte is
issued with a new address for the next write or read operation. Continuous mode allows multiple, sequential or
nonsequential register addresses to be read or written in succession, as shown in Figure 16.
Auto-Increment mode is designed for writing or reading multiple sequential register addresses. After the first
register is written or read, the register address is automatically incremented by 1, so the next write or read
operation is performed without issuing another control byte, as shown in Figure 17.
Control Byte (or Byte 0)
The control byte, or byte 0, is the first byte written to the PCM4104 SPI port when performing a write or read
operation. The control byte includes bits that define the operation to be performed (read or write), the
auto-increment mode status, and the control register address.
The Read/Write bit, R/W, is set to 0 to indicate a register write operation, or set to 1 for a register read
operation.
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The Increment bit, INC, enables or disables the Auto-Increment mode of operation. When this bit is set to a 0,
auto-increment operation is disabled, and the operation performed is either Single Register or Continuous.
Setting the INC bit to 1 enables Auto-Increment operation.
A two-bit key code, 10B, follows the INC bit and must be present in order for any operation to take place on the
control port. Any other combination for these bits will result in the port ignoring the write or read request.
The four-bit address field, A[3:0], is used to specify the control register address for the read or write operation, or
the starting address for an Auto-Increment write or read operation.
Set CS = 1 here for Single Register Operations
Keep CS = 0 for writing or reading multiple registers in Continuous mode
CS
CDIN
Control Byte
Register Data
Control Byte
byte 0
byte 1
byte 0
Register Data
CDOUT
High Impedance
byte 1
Register Data
byte 1
byte N
Register Data
High Impedance
byte 2
byte N
CCLK
Control Byte Definition (Byte 0)
MSB
R/W INC
LSB
1
0
A3
A2
A1
A0
Register Address
Auto −Increment Control: Set to 0 for Single Register or Continuous Operation
Read/WriteControl: 0 = Write
1 = Read
Figure 16. Single Register and Continuous Write or Read Operation
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Keep CS = 0 for Auto−Increment Operation
CS
Control Byte
Register Data
byte 0
CDIN
byte 1
byte 2
byte 3
byte N
byte 2
byte 3
byte N
Register Data
CDOUT
byte 1
High Impedance
CCLK
Control Byte Definition (Byte 0)
MSB
LSB
R/W INC
1
0
A3
A2
A1
A0
Register Address
Auto−Increment Control: Set to 1 for Auto−Increment Operation
Read/WriteControl: 0 = Write
1 = Read
Figure 17. Auto-Increment Write or Read Operation
tDS
tDH
tCH
CS
CCLK
CDIN
CDOUT
MSB
High Impedance (Hi Z)
LSB
MSB
t DO
tCSZ
PARAMETER
DESCRIPTION
MIN
tDS
CDIN Data Setup Time
5
ns
tDH
CDIN Data Hold Time
2
ns
tCH
CS Hold Time
2
ns
t DO
CDOUT Data Delay Time
5
ns
tCSZ
CS High to CDOUT Hi Z
5
ns
Figure 18. SPI Port Timing
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CONTROL REGISTER DEFINITIONS (Software Mode Only)
The PCM4104 includes a small set of control registers, which are utilized to configure the full set of on-chip
functions in Software mode. The register map is shown in Table 6. Register 0 is reserved for factory use and
should not be written to for normal operation. Register 0 defaults to all zero data on power up or reset.
Table 6. Control Register Map
CONTROL
REGISTER
ADDRESS
(Hex)
MSB
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
LSB
BIT 0
0
0
0
0
0
0
0
0
0
1
AT17
AT16
AT15
AT14
AT13
AT12
AT11
AT10
2
AT27
AT26
AT25
AT24
AT23
AT22
AT21
AT20
3
AT37
AT36
AT35
AT34
AT33
AT32
AT31
AT30
4
AT47
AT46
AT45
AT44
AT43
AT42
AT41
AT40
5
MUT4
MUT3
MUT2
MUT1
ZDM
PHASE
DEM1
DEM0
6
RST
0
0
0
PDN34
PDN12
FS1
FS0
7
0
0
BCKE
LRCKP
0
FMT2
FMT1
FMT0
Register 1: Attenuation Control Register – Channel 1
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
AT17
AT16
AT15
AT14
AT13
AT12
AT11
AT10
This register controls the digital output attenuation for Channel 1.
Default: AT1[7:0] = 255, or 0 dB
Let N = AT1[7:0].
For N = 16 to 255, Attenuation (dB) = 0.5 × (255 – N)
or N = 0 to 15, Attenuation (dB) = Infinite (Muted)
Register 2: Attenuation Control Register – Channel 2
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
AT27
AT26
AT25
AT24
AT23
AT22
AT21
AT20
This register controls the digital output attenuation for Channel 2.
Default: AT2[7:0] = 255, or 0 dB
Let N = AT2[7:0].
For N = 16 to 255, Attenuation (dB) = 0.5 × (255 – N)
or N = 0 to 15, Attenuation (dB) = Infinite (Muted)
Register 3: Attenuation Control Register – Channel 3
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
AT37
AT36
AT35
AT34
AT33
AT32
AT31
AT30
This register controls the digital output attenuation for Channel 3.
Default: AT3[7:0] = 255, or 0 dB
Let N = AT3[7:0].
For N = 16 to 255, Attenuation (dB) = 0.5 × (255 – N)
or N = 0 to 15, Attenuation (dB) = Infinite (Muted)
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Register 4: Attenuation Control Register – Channel 4
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
AT47
AT46
AT45
AT44
AT43
AT42
AT41
AT40
This register controls the digital output attenuation for Channel 4.
Default: AT4[7:0] = 255, or 0 dB
Let N = AT4[7:0].
For N = 16 to 255, Attenuation (dB) = 0.5 × (255 – N)
or N = 0 to 15, Attenuation (dB) = Infinite (Muted)
Register 5: Function Control Register
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
MUT4
MUT3
MUT2
MUT1
ZDM
PHASE
DEM1
DEM0
This register controls various D/A converter functions, including de-emphasis filtering, output phase reversal,
zero data mute, and per-channel soft muting.
DEM[1:0] – Digital De-Emphasis
De-emphasis is available for Single Rate mode only.
De-emphasis is disabled for Dual and Quad Rate modes.
DEM1
DEM0
De-Emphasis Selection
0
0
De-emphasis disabled (default)
0
1
De-emphasis for fS = 48 kHz
1
0
De-emphasis for fS = 44.1 kHz
1
1
De-emphasis for fS = 32 kHz
PHASE – Output Phase
PHASE
Output Phase
0
Noninverted (default)
1
Inverted
ZDM – Zero Data Mute
ZDM
Zero Mute
0
Disabled (default)
1
Enabled
MUT[4:1] – Soft Mute
MUTx
D/A Converter Output
0
On (default)
1
Muted
NOTE: x = channel number.
30
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Register 6: System Control Register
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
RST
0
0
0
PDN34
PDN12
FS1
FS0
This register controls various system level functions of the PCM4104, including sampling mode, power down,
and soft reset.
FS[1:0] – Sampling Mode
FS1
FS0
Sampling Mode
0
0
Single Rate (default)
0
1
Dual Rate
1
0
Quad Rate
1
1
- Not Used -
PDN12 – Power-Down for Channels 1 and 2
PDN12
Power Down For Channels 1 And 2
0
Disabled (default)
1
Enabled
PDN34 – Power-Down for Channels 3 and 4
PDN34
Power Down For Channels 3 And 4
0
Disabled (default)
1
Enabled
RST – Software Reset (value defaults to 0)
Setting this bit to 1 will initiate a logic reset of the PCM4104. This bit functions the same as an external reset
applied at the RST input (pin 9).
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Register 7: Audio Serial Port Control Register
BIT 7 (MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0 (LSB)
0
0
BCKE
LRCKP
0
FMT2
FMT1
FMT0
This register is used to control the data format and clock polarity for the PCM4104 audio serial port.
FMT[2:0] – Audio Data Format
FMT2
FMT1
DEM0
Data Format
0
0
0
24-bit left justified (default)
0
0
1
24-bit I2S
0
1
0
TDM with zero BCK delay
0
1
1
TDM with one BCK delay
1
0
0
24-bit right justified
1
0
1
20-bit right justified
1
1
0
18-bit right justified
1
1
1
16-bit right justified
LRCKP – LRCK Polarity (0 = Normal, 1 = Inverted). Defaults to 0.
BCKE – BCK Sampling Edge (0 = Rising Edge, 1 = Falling Edge), Defaults to 0.
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APPLICATION INFORMATION
This section provides practical information for system and hardware engineers that are designing in the
PCM4104.
Basic Circuit Configurations
Figure 19 and Figure 20 show typical circuit configurations for the PCM4104 operated in Standalone and
Software modes. Power supply bypass and reference decoupling capacitors should be placed as close to the
corresponding PCM4104 pins as possible. A common ground is shown in both figures, with the analog and
digital ground pins connected to a common plane. Separate power supplies are utilized for the analog and digital
sections, with 5 V required for the PCM4104 analog supplies and 3.3 V required for the digital supply.
The 5 V analog supply may be derived from a higher valued, positive analog power supply using a linear voltage
regulator, such as the REG103 available from Texas Instruments. The 3.3 V digital supply can be derived from a
primary 5 V digital supply using a linear voltage regulator, such as the REG1117, also from TI. The
PCM4104EVM evaluation module provides an example of how the common ground with separate supply
approach can be successfully implemented. The PCM4104EVM User's Guide includes schematics and PCB
layout plots for reference. The evaluation module is available through Texas Instruments' distributors and sales
representatives, or may be ordered online through the TI eStore, which can be accessed through the TI home
page at http://www.ti.com.
The master clock generator supplies the system clock for the PCM4104, as well as the audio data source, such
as a digital signal processor. The LRCK and BCK audio clocks should be derived from the system clock, in order
to ensure synchronous operation.
Analog Output Filter Circuits
An external output filter is recommended for each differential output pair. The external output filter further
reduces the out-of-band noise energy produced by the delta-sigma modulator, while providing band limiting
suitable for audio reproduction. A 2nd-order Butterworth low-pass filter circuit with a –3 dB corner frequency
from 50 kHz to 180 kHz is recommended.
The configuration of the output filter circuit is dependent upon whether a single-ended or differential output is
required. Single-ended outputs are commonly used in consumer playback systems, while differential or balanced
outputs are used in many professional audio applications, such as recording or broadcast studios and live sound
systems.
Figure 21 illustrates an active filter circuit that uses a single op amp to provide both 2nd-order low-pass filtering
and differential to single-ended signal conversion. This circuit is used on the PCM4104EVM evaluation circuit
and meets the published typical Electrical Characteristics for dynamic performance. The single-ended output is
convenient for connecting to both headphone and power amplifiers when used for listening tests.
The quality of the op amp used is this circuit is important, as many devices will degrade the dynamic range
and/or total harmonic distortion plus noise (THD+N) specifications for the PCM4104. An NE5534A is shown in
Figure 21 and provides both low noise and distortion. Bipolar input op amps with equivalent specifications
should produce similar measurement results. Devices that exhibit higher equivalent input noise voltage, such as
the Texas Instruments OPA134 or OPA604 families, will produce lower dynamic range measurements
(approximately 1 dB to 2 dB lower than the typical PCM4104 specification), while having little or no impact on
the THD+N specification when measuring a full-scale output level.
Figure 22 illustrates a fully-differential output filter circuit suitable for use with the PCM4104. The OPA1632 from
Texas Instruments provides the fully differential signal path in this circuit. The OPA1632 features very low noise
and distortion, making it suitable for high-end audio applications.
Texas Instruments provides a free software tool, FilterProt, used to assist in the design of active filter circuits.
The software supports design of multiple feedback (MFB), Sallen-Key, and fully differential filter circuits. FilterPro
is available from the TI web site. Additionally, TI document number SBAF001A, also available from the TI web
site, provides pertinent application information regarding the proper usage of the FilterPro program.
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APPLICATION INFORMATION (continued)
To Analog Output Filters(1)
48
VOUT1+
VOUT1−
47
46
45
44
43
42
41
40
39
38
VCOM2
VOUT3+
VOUT3−
VCC2
VREF3+
VREF3−
VREF2−
VREF2+
VCC1
VOUT2−
VOUT2+
VCOM1
(2)
37
1
36
2
35
3
34
4
33
5
32
AGND1
VREF1−
(2)
VREF1+
VOUT4−
AGND2
NC
VREF4−
VREF4+
(2)
NC
6
31
PCM4104
NC
NC
7
30
8
29
9
28
10
27
11
26
12
25
MODE
FS1
FS0
RST
FMT2
MUTE
FMT1
DEM1
DEM0
From
Logic,
µP,
or DSP
FMT0
23
24
CDOUT
22
CDIN
21
CCLK
20
CS
19
DGND
18
VDD
17
DATA1
16
DATA0
15
LRCK
14
BCK
SUB
13
SCKI
From
Logic,
µP,
or DSP
VOUT4+
+5.0V
+3.3V
Pin 19
0.1µF
+
10µF
Master
Clock
Generator
Pin 40
Audio Data Source
0.1µF
(1) Refer to NO TAG and NO TAG in this document.
(2) Refer to NO TAG in this document for external connection requirements.
Figure 19. Typical Standalone Mode Configuration
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Pin 45
10µF
0.1µF
+
10µF
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APPLICATION INFORMATION (continued)
To Analog Output Filters(1)
48
VOUT1+
VOUT1−
47
46
45
43
42
41
40
39
VCOM2
VOUT3+
VOUT3−
VCC2
VREF3+
VREF3−
VREF2+
44
VREF2−
VCC1
VOUT2−
VOUT2+
VCOM1
(2)
38
37
1
36
2
35
3
34
4
33
5
32
6
31
AGND1
VREF1−
(2)
VREF1+
VREF4−
VREF4+
(2)
NC
PCM4104
NC
NC
7
30
8
29
9
28
10
27
11
26
12
25
FS1
MODE
FS0
RST
FMT2
MUTE
FMT1
DEM1
DEM0
FMT0
Master
Clock
Generator
Audio Data Source
23
24
CDOUT
22
CDIN
21
CCLK
20
CS
19
DGND
18
VDD
17
DATA0
16
DATA1
15
LRCK
14
BCK
SUB
13
SCKI
From
Logic or
Host Control
VOUT4−
AGND2
NC
+3.3V
VOUT4+
Host Control
+5.0V
+3.3V
Pin 19
0.1µF
+
Pin 40
0.1µF
10µF
+
Pin 45
10µF
0.1µF
+
10µF
(1) Refer to NO TAG and NO TAG in this document.
(2) Refer to NO TAG in this document for external connection requirements.
Figure 20. Typical Software Mode Configuration
Submit Documentation Feedback
35
PCM4104-EP
www.ti.com
SBAS419 – JUNE 2007
APPLICATION INFORMATION (continued)
1kΩ
560pF
+12V
10µF
+
0.1µF
PCM4104
VOUTn−
100µF
+
VOUTn+
22pF 100µF
+
604Ω
499Ω
2
7
100Ω
604Ω
2200pF
499Ω
NE5534A
3
4
1kΩ
6
0.1µF
560pF
10µF
n = 1, 2, 3, or 4
+
−12V
Figure 21. Single-Ended Output Filter Circuit
36
Submit Documentation Feedback
Filtered
Output
RCA or 1/4−inch
Phone Jack
PCM4104-EP
www.ti.com
SBAS419 – JUNE 2007
APPLICATION INFORMATION (continued)
1kΩ
560pF
−15V
10µF
+
0.1µF
PCM4104
VOUTn+
VOUTn−
Filtered
Output
6
7
100µF
+
604Ω
22pF 100µF
+
604Ω
499Ω
8
EN
2200pF
5
1
VOCM
3
1
OPA1632
499Ω
100Ω
100Ω
4
2
3
2
Male XLR
Connector
10µF
n = 1, 2, 3, or 4
0.1µF
+
+15V
560pF
1kΩ
Figure 22. Differential Output Filter Circuit
Submit Documentation Feedback
37
PACKAGE OPTION ADDENDUM
www.ti.com
18-Sep-2008
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
PCM4104IPFBREP
ACTIVE
TQFP
PFB
48
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
V62/07643-01XE
ACTIVE
TQFP
PFB
48
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1 YEAR
Lead/Ball Finish
MSL Peak Temp (3)
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF PCM4104-EP :
• Catalog: PCM4104
NOTE: Qualified Version Definitions:
• Catalog - TI's standard catalog product
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
18-Aug-2008
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
PCM4104IPFBREP
Package Package Pins
Type Drawing
TQFP
PFB
48
SPQ
Reel
Reel
Diameter Width
(mm) W1 (mm)
1000
330.0
16.8
Pack Materials-Page 1
A0 (mm)
B0 (mm)
K0 (mm)
P1
(mm)
W
Pin1
(mm) Quadrant
9.6
9.6
1.5
12.0
16.0
Q2
PACKAGE MATERIALS INFORMATION
www.ti.com
18-Aug-2008
*All dimensions are nominal
Device
Package Type
Package Drawing
Pins
SPQ
Length (mm)
Width (mm)
Height (mm)
PCM4104IPFBREP
TQFP
PFB
48
1000
346.0
346.0
33.0
Pack Materials-Page 2
MECHANICAL DATA
MTQF019A – JANUARY 1995 – REVISED JANUARY 1998
PFB (S-PQFP-G48)
PLASTIC QUAD FLATPACK
0,27
0,17
0,50
36
0,08 M
25
37
24
48
13
0,13 NOM
1
12
5,50 TYP
7,20
SQ
6,80
9,20
SQ
8,80
Gage Plane
0,25
0,05 MIN
0°– 7°
1,05
0,95
Seating Plane
0,75
0,45
0,08
1,20 MAX
4073176 / B 10/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
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