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PDF PCM1804 Data sheet ( Hoja de datos )
| Número de pieza | PCM1804 | |
| Descripción | FULL DIFFERENTIAL ANALOG INPUT 24-BIT/ 192-kHz STEREO A/D CONVERTER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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PCM1804
SLES022A – DECEMBER 2001
FULL DIFFERENTIAL ANALOG INPUT 24-BIT, 192-kHz
STEREO A/D CONVERTER
FEATURES
D 24-Bit Delta-Sigma Stereo A/D Converter
D High Performance:
– Dynamic Range: 112 dB (Typically)
– SNR: 111 dB (Typically)
– THD+N: -102 dB (Typically)
D High Performance Linear Phase antialias
Digital Filter:
– Pass-Band Ripple: ±0.005 dB
– Stop-Band Attenuation: –100 dB
D Fully Differential Analog Input: ±2.5 V
D Audio Interface: Master or Slave Mode
Selectable
D Data Formats: Left Justified, I2S, Standard
24-Bit and DSD
D Function:
– Peak Detection
– Low-Cut Filter (HPF): –3 dB at 1 Hz,
fS = 48 kHz
D Sampling Rate up to 192 kHz
D System Clock: 128 fS, 256 fS, 384 fS, 512 fS, or
768 fS
D Dual Power Supplies:
– 5 V for Analog
– 3.3 V for Digital
D Power Dissipation: 225 mW
D Small 28-Pin SSOP
D DSD Output: 1 Bit, 64 fS
D Lead-Free Product
APPLICATIONS
D AV Amp
D MD Player
D Digital VTR
D Digital Mixer
D Digital Recorder
DESCRIPTION
The PCM1804 is a high-performance single chip stereo
A/D converter with full differential analog voltage input.
The PCM1804 uses a precision delta-sigma modulator
and includes a linear phase antialias digital filter and
HPF (low-cut filter) that removes dc offset of the input
signal. The PCM1804 is suitable for a wide variety of
mid-to-high grade consumer and professional
applications, where excellent performance and 5-V
analog supply and 3.3-V digital power supply operation
are required. The PCM1804 can achieve both PCM
audio and DSD format due to precision delta-sigma
modulator. The PCM1804 is fabricated on an advanced
CMOS process and is available in small 28-pin SSOP
package.
PRODUCT
PCM1804DB
PACKAGE
28-Lead SSOP
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
OPERATING
TEMPERATURE RANGE
PACKAGE
MARKING
ORDERING NUMBER
28DB
–10°C to 70°C
PCM1804DB
PCM1804DB
PCM1804DBR
TRANSPORT
MEDIA
Tube
Tape and Reel
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These
circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,
Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated
voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device
should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,
preferably either VCC or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for
Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2001, Texas Instruments Incorporated
www.ti.com
1
1 page  
PCM1804
SLES022A – DECEMBER 2001
electrical characteristics, all specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, master mode,
single-speed mode, fS = 48 kHz, system clock = 256 fS, 24-bit data (unless otherwise noted)
PARAMETER
TEST CONDITIONS
PCM1804DB
UNIT
MIN TYP MAX
Resolution
24 Bits
DATA FORMAT
Audio data interface format
Standard, I2S,
left justified
Audio data bit length
24-bits
Audio data format
MSB first,
2s complement, DSD
DIGITAL INPUT/OUTPUT
Logic family
TTL compatible
VIH High-level input voltage
VIL Low-level input voltage
IIH High-level input current
IIL Low-level input current
VOH High-level output voltage
VOL Low-level output voltage
CLOCK FREQUENCY
See Notes 1 and 2
See Note 3
See Notes 1, 2, and 3
VIN = VDD,
VIN = VDD,
VIN = VDD,
VIN = 0 V,
VIN = 0 V,
IOH = –1 mA,
IOL = 1 mA,
See Note 1
See Note 2
See Note 3
See Notes 1 and 2
See Note 3
See Note 4
See Note 5
2 5.5
VDC
2 VDD
0.8 VDC
65 100
±10
±100
µA
±10
±50 µA
2.4 VDC
0.4 VDC
fS Sampling frequency
System clock frequency
DC ACCURACY
256 fS, Single rate, See Note 5
384 fS, Single rate, See Note 5
512 fS, Single rate, See Note 5
768 fS, Single rate, See Note 5
256 fS, Dual rate, See Note 6
384 fS, Dual rate, See Note 6
128 fS, Quad rate, See Note 7
192 fS, Quad rate, See Note 7
32
12.288
18.432
24.576
36.864
24.576
36.864
24.576
36.864
192 kHz
MHz
Gain mismatch channel-to-channel
±3 %/FSR
Gain error (VIN = –0.5 dB)
Bipolar zero error
HPF bypass
±4 %/FSR
±0.2 %/FSR
NOTES:
1. Pins 6–11, 19: FMT0, FMT1, S/M, OSR0, OSR1, OSR2, RST (Schmitt-trigger input with internal pulldown (51 kΩ typically), 5 V
tolerant)
2. Pin 18: SCKI (Schmitt-trigger input, 5 V tolerant)
3. Pins 12, 16–17: BYPAS, BCK/DSDL, LRCK/DSDBCK (in slave mode, Schmitt-trigger input)
4. Pins 15–17, 20, and 21: DATA/DSDR, BCK/DSDL, LRCK/DSDBCK (in master mode), OVFR, OVFL
5. Single rate, fS = 48 kHz
6. Dual rate, fS = 96 kHz
7. Quad rate, fS = 192 kHz
www.ti.com
5
5 Page 
PCM1804
TYPICAL CHARACTERISTICS
SLES022A – DECEMBER 2001
dual rate
AMPLITUDE
vs
FREQUENCY
0
fS = 96 kHz,
–20 System Clock = 256 fS
–40
AMPLITUDE
vs
FREQUENCY
0
Output Spectrum:
–20 –60 dB,
N = 8192
–40
–60
–80
–100
Output Spectrum:
–0.5 dB,
N = 8192
–60
–80
–100
–120
–120
–140
–140
–160
0
24000
f – Frequency – Hz
Figure 10
quad rate
AMPLITUDE
vs
FREQUENCY
0
fS = 192 kHz,
–20 System Clock = 128 fS
48000
–160
0
24000
f – Frequency – Hz
Figure 11
AMPLITUDE
vs
FREQUENCY
0
fS = 192 kHz,
–20 System Clock = 128 fS
–40
–60 Output Spectrum:
–0.5 dB,
–80 N = 8192
–40
–60
Output Spectrum:
–60 dB,
N = 8192
–80
–100
–100
–120
–120
–140
–140
–160
0
48000
f – Frequency – Hz
96000
–160
0
Figure 12
† All specifications at TA = 25°C, VCC = 3.3 V, VDD = 5 V, master mode, 24-bit data, unless otherwise noted.
48000
f – Frequency – Hz
Figure 13
48000
96000
www.ti.com
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet PCM1804.PDF ] | |
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