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PDF PCM1801 Data sheet ( Hoja de datos )

Número de pieza PCM1801
Descripción 16-Bit/ Stereo/ Audio ANALOG-TO-DIGITAL CONVERTER
Fabricantes Burr-Brown Corporation 
Logotipo Burr-Brown Corporation Logotipo



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No Preview Available ! PCM1801 Hoja de datos, Descripción, Manual

® 49%
PCMF1P801O
PCM1801
For most current data sheet and other product
information, visit www.burr-brown.com
16-Bit, Stereo, Audio
ANALOG-TO-DIGITAL CONVERTER
FEATURES
q DUAL 16-BIT MONOLITHIC ∆Σ ADC
q SINGLE-ENDED VOLTAGE INPUT
q 64X OVERSAMPLING DECIMATION FILTER:
Passband Ripple: ±0.05dB
Stopband Attenuation: –65dB
q ANALOG PERFORMANCE:
THD+N: –88dB (typ)
SNR: 93dB (typ)
Dynamic Range: 93dB (typ)
Internal High-Pass Filter
q PCM AUDIO INTERFACE: Left Justified,
I2S
q SAMPLING RATE: 4kHz to 48kHz
q SYSTEM CLOCK: 256fS, 384fS, or 512fS
q SINGLE +5V POWER SUPPLY
q SMALL SO-14 PACKAGE
VINL
VREF1
VREF2
PCM1801
Single-Ended-
to-Differential
Converter
Reference
VINR
Single-Ended-
to-Differential
Converter
(+) 5th-Order
∆Σ
(–) Modulator
(–) 5th-Order
∆Σ
(+) Modulator
Power Supply
DESCRIPTION
PCM1801 is a low cost, single chip stereo analog-to-
digital converter with single-ended analog voltage
inputs. The PCM1801 uses a delta-sigma modulator
with 64x oversampling, a digital decimation filter, and
a serial interface which supports Slave mode operation
and two data formats. The PCM1801 is suitable for a
wide variety of cost-sensitive consumer applications
where good performance is required.
x1/64
Decimation
and
High-Pass Filter
Serial Data
Interface
Format
Control
Clock/Timing Control
BCK
LRCK
DOUT
FMT
BYPAS
SCKI
VCC AGND DGND VDD
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1999 Burr-Brown Corporation
PDS-1554B
Printed in U.S.A. May, 2000

1 page




PCM1801 pdf
TYPICAL PERFORMANCE CURVES
At TA = +25°C, +VDD = +VCC = +5V, fS = 44.1kHz, and SYSCLK = 384fS, unless otherwise noted.
ANALOG DYNAMIC PERFORMANCE
0.006
TOTAL HARMONIC DISTORTION + NOISE
vs TEMPERATURE
3.0
SIGNAL-TO-NOISE RATIO AND DYNAMIC RANGE
vs TEMPERATURE
96
96
0.005
0.004
0.003
0.002
–25
–60dB
–0.5dB
2.8
2.6
2.4
2.2
0 25 50 75 85 100
Temperature (°C)
95
94
93
92
–25
Dynamic Range
95
94
SNR
93
92
0 25 50 75 85 100
Temperature (°C)
0.006
0.005
0.004
0.003
0.002
TOTAL HARMONIC DISTORTION + NOISE
vs SUPPLY VOLTAGE
–60dB
–0.5dB
4.5 4.75 5.0 5.25 5.5
Supply Voltage (V)
3.0
2.8
2.6
2.4
2.2
0.006
0.005
0.004
0.003
0.002
TOTAL HARMONIC DISTORTION + NOISE
vs SAMPLING RATE
–60dB
–0.5dB
32 44.1 48
Sampling Rate (kHz)
3.0
2.8
2.6
2.4
2.2
SIGNAL-TO-NOISE RATIO AND DYNAMIC RANGE
vs SUPPLY VOLTAGE
96 96
95
Dynamic Range
94
SNR
93
95
94
93
92 92
4.5 4.75 5.0 5.25 5.5
Supply Voltage (V)
SIGNAL-TO-NOISE RATIO AND DYNAMIC RANGE
vs SAMPLING RATE
96 96
95
Dynamic Range
94
95
94
93
SNR
93
92 92
32
44.1
48
Sampling Rate (kHz)
®
5 PCM1801

5 Page





PCM1801 arduino
RESET
PCM1801 has an internal power-on reset circuit, which ini-
tializes (resets) when the supply voltage (VCC /VDD) exceeds
4.0V (typ). The PCM1801 stays in the reset state and the
digital output is forced to zero. The digital output is valid after
reset state release and 18436fS periods. During reset, the logic
circuits and the digital filter stop operating. Figure 3 illustrates
the internal power-on reset timing.
SERIAL AUDIO DATA INTERFACE
The PCM1801 interfaces the audio system through BCK (pin
6), LRCK (pin 7), and DOUT (pin 8).
DATA FORMAT
PCM1801 supports two audio data formats in Slave Mode,
and are selected by the FMT control input (pin 10) as shown
in Table II.
FMT
0 (L)
1 (H)
TABLE II. Data Format.
DATA FORMAT
16-Bit, Left-Justified
16-Bit, I2S
4.4V
VCC/VDD 4.0V
3.6V
Internal Reset
System Clock
Reset
1024 System Clock Periods
FIGURE 3. Internal Power-On Reset Timing.
Reset Removal
FMT = L
16-Bit, MSB-First, Left-Justified
LRCK
BCK
DOUT
123
MSB
FMT = H
16-Bit, MSB-First, I2S
LRCK
BCK
DOUT
1 23
MSB
L–ch
14 15 16
LSB
123
MSB
R–ch
14 15 16
LSB
1
L-ch
14 15 16
LSB
123
MSB
R-ch
14 15 16
LSB
FIGURE 4. Audio Data Format (Slave Mode: LRCK, and BCK are inputs).
11
PCM1801
®

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