Datenblatt-pdf.com


PCM1732 Schematic ( PDF Datasheet ) - Burr-Brown Corporation

Teilenummer PCM1732
Beschreibung 24-Bit/ 96kHz/ Stereo Audio DIGITAL-TO-ANALOG CONVERTER With HDCD Decoder
Hersteller Burr-Brown Corporation
Logo Burr-Brown Corporation Logo 




Gesamt 18 Seiten
PCM1732 Datasheet, Funktion
®
49%
PCM1732
FPO
®
®
For most current data sheet and other product
information, visit www.burr-brown.com
TM 24-Bit, 96kHz, Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
With HDCD® Decoder
FEATURES
DESCRIPTION
q ENHANCED MULTI-LEVEL ∆Σ DAC
The PCM1732 is designed for mid- to high-grade
q INPUT AUDIO DATA WORD: 16-, 20-, 24-Bit
q SAMPLING FREQUENCY (fs): 16kHz - 96kHz
q SYSTEM CLOCK: 256, 384, 512, 768fS
q HIGH PERFORMANCE:
THD+N: –96dB
Dynamic Range: 104dB
SNR: 104dB
digital audio applications which achieve 96kHz sam-
pling rates with 24-bit audio data, such as High Defi-
nition Compatible Digital (HDCD) CD players, DVD
players, mini-disc players and AV receivers.
PCM1732 uses a newly-developed “enhanced, multi-
level delta-sigma modulator” architecture that im-
proves audio dynamic performance and reduces jitter
q AUDIO OUTPUT LEVEL: 0.57 x VCC (Vp-p)
q 8x OVERSAMPLING DIGITAL FILTER WITH
HDCD DECODER:
Stopband Attenuation: –120dB
Passband Ripple: ±0.00001dB
HDCD Filter Optimized for 44.1kHz to 48kHz
sensitivity.
The internal digital filter operates at 8x oversampling
at a 96kHz sampling rate, with –120dB stopband
attenuation.
and 88.2kHz to 96kHz
q MULTI-FUNCTIONS:
Digital De-emphasis
Soft Mute
Digital Attenuation
Zero Detect
Digital Gain Scaling
Reversible Output Phase
BCKIN
LRCIN
DIN
Serial
Input
I/F
HDCD
Hidden
Code
Recovery
HDCD
Amplitude
Decoding
PCM1732
q +5V SINGLE-SUPPLY OPERATION
q SMALL SO-28 PACKAGE
NOTE: An HDCD license from Pacific Microsonics, Inc. is
required to purchase the PCM1732.
ML/I2S
MC/DEM
MD/FSS
CS/IWO
MODE
Mode
Control
I/F
HDCD
8x
Oversampling
Digital Filter
Enhanced
Multi-Level
∆Σ
Modulator
BPZ Control
DAC
DAC
Low-Pass
Filter
Low-Pass
Filter
VOUTL
EXTL
VOUTR
EXTR
ZERO
HDCD® is a registered trademark of Pacific Microsonics, Inc.
MUTE
RST
SCK
Crystal/OSC
Power-On Reset
Power Supply
Open
Drain
HDCD® technology is provided under license from Pacific Microsonics
Inc. The PCM1732’s design is covered by the following patents:
In the USA: 45,479,168, 5,638,074, 5,640,161, 5,808,574, 5,838,274
5,854,600, 5,864,311, 5,872,531.
In Australia: 669,114.
Other patents pending.
XTI XTO
CLKO VCC1 AGND1 VDD DGND
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-1522B
Printed in U.S.A. August, 1999






PCM1732 Datasheet, Funktion
TYPICAL PERFORMANCE CURVES
DIGITAL FILTER
0
–2
–4
–6
–8
–10
0
DE-EMPHASIS FREQUENCY RESPONSE (32kHz)
2 4 6 8 10 12 14
Frequency (kHz)
0
–2
–4
–6
–8
–10
0
DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)
2 4 6 8 10 12 14 16 18
Frequency (kHz)
20
0
–2
–4
–6
–8
–10
0
DE-EMPHASIS FREQUENCY RESPONSE (48kHz)
2 4 6 8 10 12 14 16 18 20 22
Frequency (kHz)
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
0
FREQUENCY RESPONSE
(De-Emphasis Off, fS = 44.1kHz)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Frequency (x fS Hz)
0.04
0.02
0
–0.02
–0.04
0
0.02
0.01
0
–0.01
–0.02
0
DE-EMPHASIS ERROR (32kHz)
2 4 6 8 10 12
Frequency (kHz)
DE-EMPHASIS ERROR (44.1kHz)
14
2 4 6 8 10 12 14 16 18 20
0.02
0.01
0
–0.01
–0.02
0
2
DE-EMPHASIS ERROR (48kHz)
4 6 8 10 12 14 16 18 20 22
Frequency (kHz)
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
0
FREQUENCY RESPONSE
(FSS High, 96kHz Filter)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Frequency (x fS Hz)
0.003
PASSBAND RIPPLE CHARACTERISTICS
0.002
0.001
0
–0.001
–0.002
–0.003
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
Frequency (x fS Hz)
®
PCM1732
6

6 Page









PCM1732 pdf, datenblatt
LDL Left Channel Attenuation Data Load Control.
This bit is used to simultaneously set attenuation
levels of both the Left and Right channels.
When LDL = 1, the Left channel output level is
set by the data in AL[7:0]. The Right channel
output level is set by the data in AL[7:0], or the
most recently programmed data in bits AR[7:0]
of register MODE1.
When LDL = 0, the Left channel output data
remains at its previously programmed level.
REGISTER 1 (A1 = 0, A0 = 1)
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
res res res res res A1 A0 LDR AR7 AR6 AR5 AR4 AR3 AR2 AR1 AR0
Register 1 is used to set the attenuation data for the Right
output channel.
When ATC = 1 (Bit B2 of Register MODE3 = 1), the Left
channel attenuation data AL[7:0] of register MODE0 is used
for both the Left and Right channel attenuators.
When ATC = 0, (Bit B2 of Register MODE3 = 0), Left
channel attenuation data is taken from AL[7:0] of register
MODE0, and Right channel attenuation data is taken from
AR[7:0] of register MODE1.
AR[7:0]
Right Channel Attenuator Data, where AR7 is
the MSB and AR0 is the LSB. Attenuation
Level is given by:
ATTEN = 0.5 • (DATA – 255) dB
LDR
For DATA = FFH, ATTEN = –0dB
For DATA = FEH, ATTEN = –0.5dB
For DATA = 01H, ATTEN = –127.5dB
For DATA = 00H, ATTEN = infinity = Mute
Right Channel Attenuation Data Load Control.
This bit is used to simultaneously set attenuation
levels of both the Left and Right channels.
When LDR = 1, the Right channel output level
is set by the data in AR[7:0], or by the data in
bits AL[7:0] of register MODE0. The Left chan-
nel output level is set to the most recently
programmed data in bits AL[7:0] of register
MODE0.
When LDR = 0, the Right channel output data
remains at its previously programmed level.
REGISTER 2 (A1 = 1, A0 = 0)
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
res res res res res A1 A0 CB1 CB0 SCA FSS IW1 IWO OPE DEM MUTE
Register 2 is used to control soft mute, de-emphasis, opera-
tion enable, input resolution, and input audio data bit and
format.
MUT (B0)
MUT = L
MUT = H
Soft Mute OFF
Soft Mute ON
TABLE X. Soft Mute Control.
DEM (B1)
DEM = L
DEM = H
De-Emphasis OFF
De-Emphasis ON
TABLE XI. De-Emphasis Control.
OPE (B2)
OPE = L
OPE = H
Normal Operation
DAC Operation OFF
TABLE XII. DAC Operation Control.
When OPE (B2) is HIGH, the output of the DAC will be
forced to bipolar zero, irrespective of any input data.
IW0(B3), IW1 (B4) and I2S (B0) of Register 3
Resisters IW0, IW1, and I2S determine the input data word
and input data format as shown in Table XIII.
IW1 IW0
LL
LH
HL
HH
LL
LH
HL
HH
I2S
L
L
L
L
H
H
H
H
AUDIO INTERFACE
16-Bit Standard (Right-Justified)
20-Bit Standard (Right-Justified)
24-Bit Standard (Right-Justified)
24-Bit Left-Justified (MSB First)
16-Bit I2S
24-Bit I2S
Reserved
Reserved
TABLE XIII. Data Format Control.
Sampling Rate Range is selected by the FSS (B5) register.
FSS (B5)
FSS = L
FSS = H
SAMPLING RATE RANGE
Sampling Rate, fS 52kHz
Sampling Rate, fS >52kHz
TABLE XIV. Sampling Rate Range Select.
HDCD gain scaling can be implemented internally with digital
gain scaling (for normal CD and HDCD without peak extend),
or externally with analog gain scaling (for HDCD with and
without peak extend).
Digital gain scaling is implemented by 6dB attenuation for
normal CD and HDCD without peak extend, and also operated
as 0dB attenuation for HDCD with peak extend. Detection for
normal CD, HDCD without peak extend, and HDCD with
peak extend is done automatically.
SCA (B6)
SCA = L
SCA = H
GAIN SCALING
Digital Gain Scaling
Analog Gain Scaling
TABLE XV. Gain Scaling Select.
®
PCM1732
12

12 Page





SeitenGesamt 18 Seiten
PDF Download[ PCM1732 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
PCM173024-Bit 192-kHz Sampling Advanced Segment Audio Stereo Digital-to-Analog ConverTexas Instruments
Texas Instruments
PCM173224-Bit/ 96kHz/ Stereo Audio DIGITAL-TO-ANALOG CONVERTER With HDCD DecoderBurr-Brown Corporation
Burr-Brown Corporation
PCM1733Stereo Audio DIGITAL-TO-ANALOG CONVERTER 18 Bits/ 96kHz SamplingBurr-Brown Corporation
Burr-Brown Corporation
PCM1733SoundPlus Stereo Audio Digital-To-Analog Converter 18 Bits 96kHz SamplingTexas Instruments
Texas Instruments
PCM173724-Bit/ 192kHz Sampling Enhanced Multi-Level/ Delta-Sigma/ Audio DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche