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Número de pieza | PCM3006T | |
Descripción | 16-Bit/ Single-Ended Analog Input/Output STEREO AUDIO CODEC | |
Fabricantes | Burr-Brown Corporation | |
Logotipo | ||
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PCM3006
PCM3006
16-Bit, Single-Ended Analog Input/Output
TM STEREO AUDIO CODEC
FEATURES
q MONOLITHIC 16-BIT ∆Σ ADC AND DAC
q STEREO ADC:
Single-Ended Voltage Input
64 X Oversampling
High Performance
THD+N: –84dB
SNR: 89dB
Dynamic Range: 89dB
Digital High Pass Filter
q STEREO DAC:
Single-Ended Voltage Output
Analog Low Pass Filter
8X Oversampling Digital Filter
High Performance
THD+N: –85dB
SNR: 93dB
Dynamic Range: 93dB
q SPECIAL FEATURES
Digital De-emphasis
Power Down: ADC/DAC Independent
q SAMPLING RATE: Up to 48kHz
q SYSTEM CLOCK: 256fS, 384fS, 512fS
q SINGLE +3V POWER SUPPLY
q SMALL PACKAGE: 24-Lead TSSOP
DESCRIPTION
The PCM3006 is a low cost single chip stereo audio
CODEC (analog-to-digital and digital-to-analog con-
verters) with single-ended analog voltage input and
output.
Both ADCs and DACs employ delta-sigma modula-
tion with 64X oversampling. The ADCs include a
digital decimation filter, and the DACs include an 8X
oversampling digital interpolation filter. The DACs
also include a de-emphasis function. PCM3006 oper-
ates with 16-bit, left-justified for ADC, right-justified
for DAC data formats.
PCM3006 provides a Power-Down Mode that oper-
ates on the ADCs and DACs independently.
Fabricated on a highly advanced 0.6µs CMOS pro-
cess, PCM3006 is suitable for a wide variety of
cost-sensitive consumer applications where good
performance is required. Applications include sam-
pling keyboards, digital mixers, effects processors,
hard-disk recorders, data recorders and digital video
cameras.
Lch In
Rch In
Analog Front-End
Lch Out
Rch Out
Low Pass Filter
and
Output Buffer
Delta-Sigma
Modulator
Multi-Level
Delta-Sigma
Modulator
Decimation
Digital Filter
Oversampling
Interpolation
Digital Filter
Serial Interface
and
Mode Control
Digital Out
Digital In
Parallel Mode 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
© 1998 Burr-Brown Corporation
PDS1-1436A
PCM3006Printed in U.S.A. February, 1998
®
1 page TYPICAL PERFORMANCE CURVES
ADC SECTION
At TA = +25°C, VCC = VDD = 3.0V, fS = 44.1kHz, fSYSCLK = 384fS, and fSIGNAL = 1kHz, unless otherwise noted.
0.010
THD+N vs TEMPERATURE
DYNAMIC RANGE and SNR vs TEMPERATURE
6.0 92
0.008
0.006
–60dB
Dynamic Range
5.0 90
0.5dB
4.0 88
SNR
92
90
88
0.004
3.0 86
86
0.002
–25
2.0
0 25 50 75 85 100
Temperature (°C)
84
–25
84
0 25 50 75 85 100
Temperature (°C)
0.010
0.008
0.006
0.004
0.002
THD+N vs SUPPLY VOLTAGE
–60dB
–0.5dB
2.4 2.7 3.0 3.3 3.6
Supply Voltage (V)
6.0
5.0
4.0
3.0
2.0
DYNAMIC RANGE and SNR vs SUPPLY VOLTAGE
92 92
Dynamic Range
90 90
88
SNR
88
86 86
84 84
2.4 2.7 3.0 3.3 3.6
Supply Voltage (V)
0.010
0.008
0.006
0.004
0.002
THD+N vs SAMPLING FREQUENCY
–60dB
–0.5dB
32 44.1 48
fS (kHz)
5.0
4.0
3.0
2.0
1.0
DYNAMIC RANGE and SNR vs SAMPLING FREQUENCY
92 92
90
Dynamic Range
88
SNR
86
90
88
86
84 84
32
44.1
48
fS (kHz)
®
5 PCM3006
5 Page PCM AUDIO INTERFACE
The four-wire digital audio interface for PCM3006 is com-
prised of: LRCIN (pin 10), BCKIN (pin 11), DIN (pin 15),
and DOUT (pin 12). PCM3006 accepts 16-bit Most Signifi-
cant Bit (MSB) First. Figures 2 and 3 illustrate audio data
input/output format and timing.
PCM3006 can accept 32-, 48-, or 64-bit clocks (BCKIN) in
one clock of LRCIN.
FORMAT 0: PCM3006
DAC: 16-Bit, MSB-First, Right-Justified
LRCIN
BCKIN
DIN
16
L–ch
1 23
ADC: 16-Bit, MSB-First, Left-Justified
MSB
LRCIN
BCKIN
DOUT
123
L–ch
14 15 16
MSB
LSB
FIGURE 2. Audio Data Input/Output Format.
14 15 16
LSB
123
MSB
R–ch
123
MSB
R–ch
14 15 16
LSB
LRCIN
BCKIN
DIN
tLRP
tBL tLB
tBCH
tBCL
tBCY
tDIS tDIH
0.5VDD
0.5VDD
0.5VDD
DOUT
tBDO
tLDO
0.5VDD
14 15 16
LSB
1
BCKIN Pulse Cycle Time
BCKIN Pulse Width High
BCKIN Pulse Width Low
BCKIN Rising Edge to LRCIN Edge
LRCIN Edge to BCKIN Rising Edge
LRCIN Pulse Width
DIN Set-up Time
DIN Hold Time
DOUT Delay Time to BCKIN Falling Edge
DOUT Delay Time to LRCIN Edge
Rising Time of All Signals
Falling Time of All Signals
tBCY
tBCH
tBCL
tBL
tLB
tLRP
tDIS
tDIH
tBDO
tLDO
tRISE
tFALL
300ns (min)
120ns (min)
120ns (min)
40ns (min)
40ns (min)
tBCY (min)
40ns (min)
40ns (min)
40ns (max)
40ns (max)
20ns (max)
20ns (max)
FIGURE 3. Audio Data Input/Output Timing.
11
PCM3006
®
11 Page |
Páginas | Total 16 Páginas | |
PDF Descargar | [ Datasheet PCM3006T.PDF ] |
Número de pieza | Descripción | Fabricantes |
PCM3006 | 16-Bit/ Single-Ended Analog Input/Output STEREO AUDIO CODEC | Burr-Brown Corporation |
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