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PDF PCM1800E Data sheet ( Hoja de datos )
| Número de pieza | PCM1800E | |
| Descripción | Single-Ended Analog Input 20-Bit Stereo ANALOG-TO-DIGITAL CONVERTER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PCM1800E (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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® 49%
PCMF18P0O0
PCM1800
Single-Ended Analog Input 20-Bit Stereo
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q DUAL 20-BIT MONOLITHIC ∆Σ ADC
q SINGLE-ENDED VOLTAGE INPUT
q 64X OVERSAMPLING DECIMATION FILTER:
Passband Ripple: ±0.05dB
Stopband Attenuation: –65dB
q HIGH PERFORMANCE:
THD+N: -88dB (typ)
SNR: 95dB (typ)
Dynamic Range: 95dB (typ)
Internal High Pass Filter
q PCM AUDIO INTERFACE:
Master/Slave Modes
4 Data Formats
q SAMPLING RATE: 32kHz, 44.1kHz, 48kHz
q SYSTEM CLOCK: 256fS, 384fS, or 512fS
q SINGLE +5V POWER SUPPLY
q SMALL 24-PIN SSOP PACKAGE
DESCRIPTION
PCM1800 is a low cost, single chip stereo analog-to-
digital converter with single-ended analog voltage
inputs. The PCM1800 uses a delta-sigma modulator
with 64X oversampling, including a digital decima-
tion filter and serial interface which supports both
Master and Slave Modes and four data formats.
PCM1800 is suitable for a wide variety of cost-sensi-
tive consumer applications where high performance is
required.
PCM1800 is fabricated on a highly advanced CMOS
process.
Analog Input (L)
Analog Input (R)
Analog Front-End
Delta-Sigma
Modulator
Decimation
Digital
Filter
Serial Interface
and
Format Control
Digital Output
Mode/Format Control
System Clock
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1997 Burr-Brown Corporation
P1DS-1387
PPCrinMted1in8U0.S.0A. August, 1997
®
1 page  
TYPICAL PERFORMANCE CURVES
At TA = +25°C, +VDD = +VCC = +5V, fS = 44.1kHz, and 20-bit input data, SYSCLK = 384fS, unless otherwise noted.
0.010
0.008
0.006
0.004
0.002
–25
THD+N vs TEMPERATURE
4.0
–60dB
–0.5dB
3.0
2.0
1.0
0
0 25 50 75 85 100
Temperature (°C)
SNR, DYNAMIC RANGE vs TEMPERATURE
98 4.0
Dynamic Range
96
3.0
SNR
94
2.0
92 1.0
90
–25
0
0 25 50 75 85 100
Temperature (°C)
0.010
0.008
0.006
0.004
0.002
THD+N vs POWER SUPPLY
–60dB
–0.5dB
4.5 4.75 5.0 5.25 5.5
Supply Voltage (V)
4.0
3.0
2.0
1.0
0
SNR and DYNAMIC RANGE vs POWER SUPPLY
98 98
Dynamic Range
96
96
SNR
94 94
92 92
90 90
4.5 4.75 5.0 5.25 5.50
Supply Voltage (V)
0.010
THD+N vs SYSTEM CLOCK
and SAMPLING FREQUENCY
4.0
0.008
0.006
0.004
0.002
–60dB
48kHz
32kHz
32kHz
44.1kHz
–0.5dB
256fS
48kHz
384fS
System Clock
44.1kHz
512fS
3.0
2.0
1.0
0
0.010
0.008
0.006
0.004
0.002
THD+N vs OUTPUT DATA RESOLUTION
–60dB
–0.5dB
16-Bit
20-Bit
Resolution
4.0
3.0
2.0
1.0
0
®
5 PCM1800
5 Page 
FORMAT 0: FMT[1:0] = “00”
20-Bit, MSB-First, Left-Justified
FSYNC
LRCK
BCK
DOUT
123
MSB
FORMAT 1: FMT[1:0] = “01”
20-Bit, MSB-First, I2S
FSYNC
LRCK
BCK
DOUT
1 23
MSB
L–ch
18 19 20
LSB
123
MSB
R–ch
18 19 20
LSB
1
L-ch
18 19 20
LSB
123
MSB
R-ch
18 19 20
LSB
FORMAT 2: FMT[1:0] = “10”
16-Bit, MSB-First, Right-Justified
FSYNC
LRCK
BCK
DIN 16
L–ch
1 23
MSB
14 15 16
LSB
R–ch
123
MSB
14 15 16
LSB
FORMAT 3: FMT[1:0] = “11”
20-Bit, MSB-First, Right-Justified
FSYNC
LRCK
BCK
DOUT
20
1 23
MSB
L–ch
18 19 20
LSB
R–ch
123
MSB
18 19 20
LSB
FIGURE 5. Audio Data Format (Slave Mode: FSYNC, LRCK, and BCK are inputs).
DATA FORMAT
PCM1800 supports four audio data formats in both Master
and Slave Modes, and are selected by FMT1 (pin 9) and
FMT0 (pin 8), as shown in Table III.
FORMAT #
0
1
2
3
FMT1
0
0
1
1
FMT0
0
1
0
1
DATA FORMAT
20-bit, Left-justified
20-bit, I2S
16-bit, Right-justified
20-bit, Right-justified
NOTE: FMT1 and FMT0 must be stable at RSTB changing from LOW to
HIGH.
TABLE III. Data Format.
®
11 PCM1800
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet PCM1800E.PDF ] | |
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