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Burr-Brown Corporation

PCM1727 Datasheet Preview

PCM1727 Datasheet

Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE DUAL PLL TM

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® 49%
PCM1F7P27OE
PCM1727
TM Stereo Audio
DIGITAL-TO-ANALOG CONVERTER
WITH PROGRAMMABLE DUAL PLL
FEATURES
q ACCEPTS 16-, 20-, OR 24-BIT INPUT DATA
q COMPLETE STEREO DAC: Includes Digital
Filter and Output Amp
q DYNAMIC RANGE: 92dB
q MULTIPLE SAMPLING FREQUENCIES:
fS = 44.1kHz, 48kHz, 96kHz
q PROGRAMMABLE DUAL PLL CIRCUIT:
27MHz Master Clock Input
q GENERATED SYSTEM CLOCK
SCKO1: 33.8688MHz
SCK02: 384fS
SCK03: 768fS (44.1k/48kHz)
384fS (96kHz)
q NORMAL OR I2S DATA INPUT FORMATS
q SELECTABLE FUNCTIONS:
Soft Mute, Analog Output Mode
Digital Attenuator (256 Steps)
Digital De-emphasis
q +5V SINGLE POWER SUPPLY
DESCRIPTION
The PCM1727 is a complete low cost stereo audio
digital-to-analog converter (DAC) with a dual phase-
locked loop (PLL) circuit included. PLL-1 derives a
fixed 33.8688MHz (768fS, fS = 44.1kHz) system
clock (SCKO-1), and PLL-2 derives both the 384fS (fS
= 44.1k/48k/96kHz) system clock (SCKO-2), and the
768fS (fS = 44.1k/48kHz)/384fS (fS = 96kHz) system
clock (SCKO-3) from an external 27MHz reference
frequency. The DAC contains a 3rd-order ∆Σ modula-
tor, a digital interpolation filter, and an analog output
amplifier. The PCM1727 can accept 16-, 20-, or 24-bit
input data in either normal or I2S formats.
The digital filter performs an 8X interpolation func-
tion and includes selectable features such as soft mute,
digital attenuation and digital de-emphasis.
The PCM1727 is ideal for applications which combine
compressed audio and video data such as DVD, DVD
Audio with CD-DA compatibility, karaoke DSP.
BCKIN
LRCIN
DIN
ML
MC
MD
RSTB
Serial
Input
I/F
Mode
Control
I/F
8X Oversampling
Digital Filter
with Function
Controller
Multi-level
Delta-Sigma
Modulator
Multi-level
Delta-Sigma
Modulator
384fS
PLL2
PLL1
BPZ-Cont.
OSC
DAC
DAC
Low-pass
Filter
Low-pass
Filter
Open Drain
Power Supply
VOUTL
CAP
VOUTR
ZERO
SCKO3 SCKO2 SCKO1
MCKO XT1 XT2
VCP PGND VCA AGND 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/ • 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
PDS-1407A
Printed in U.S.A. September, 1997




Burr-Brown Corporation

PCM1727 Datasheet Preview

PCM1727 Datasheet

Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE DUAL PLL TM

No Preview Available !

SPECIFICATIONS
All specifications at +25°C, +VCA = +VDD = +VCP = +5V, fS = 44.1kHz, and 16-bit input data, SYSCLK = 384fS, unless otherwise noted.
PARAMETER
RESOLUTION
DATA FORMAT
Audio Data Interface Format
Data Bit Length
Audio Data Format
Sampling Frequency (fS)
PLL PERFORMANCE
Master Clock Input Frequency(4)
Generated System Clock
SCKO-1
SCKO-2
SCKO-3
Output Logic Level
(MCKO, SCKO 1 ~ 3)
Generated Sysclk Jitter
VOH
VOL
Generated Sysclk Transient(1)
Power-Up Time
Generated Sysclk Duty Cycle
DIGITAL INPUT LOGIC LEVEL
DYNAMIC PERFORMANCE(2)
THD+N at fS (0dB)
THD+N at –60dB
Dynamic Range (EIAJ Method)
Signal-to-Noise Ratio(3) (EIAJ Method)
Channel Separation
DC ACCURACY
Gain Error
Gain Mismatch, Channel-to-Channel
Bipolar Zero Error
ANALOG OUTPUT
Output Voltage
Center Voltage
Load Impedance
DIGITAL FILTER PERFORMANCE
Passband
Stopband
Passband Ripple
Stopband Attenuation
Delay Time
De-emphasis Error
INTERNAL ANALOG FILTER
–3dB Bandwidth
Passband Response
POWER SUPPLY REQUIREMENTS
Voltage Range
Supply Current: ICC + IDD + ICP
mA
TEMPERATURE RANGE
Operation
Storage
CONDITIONS
768fS (fS = 44.1k)
384fS
768fS (fS = 44.1k/48k), 384fS (fS = 96k)
IOH = 2mA
IOL = 4mA
Standard Dev
fM = 27MHz
To Programmed Frequency
fM = 27MHz, CL = 15pF
fs = 44.1kHz
fs = 96kHz
fs = 44.1kHz
fs = 96kHz
fs = 44.1kHz
fs = 96kHz
fs = 44.1kHz
fs = 96kHz
fs = 44.1kHz
VOUT = VCC/2 at BPZ
Full Scale (–0dB)
AC Load
f = 20kHz
VCC = VDD = VCP
fS = 44.1kHz
PCM1727
MIN
TYP
MAX
16
44.1
Standard/I2S
16/20/24 Selectable
MSB First, 2’s Comp
96
26.73
16.9344
33.8688
VDD – 0.4
40
27
33.8688
±150
15
50
TTL
27.27
36.8640
36.8640
0.5
20
30
60
–89 –80
–87
–31
–29
90 92
90
90 94
90
88 93
±1.0
±3.0
±1.0
±2.0
±30
0.62 x VCA
VCA/2
5
0.555
–35
–0.2
11.125/fS
0.445
±0.17
+0.55
100
–0.16
4.5 5 5.5
25 27
–25 +85
–55 +125
UNITS
Bits
Selectable
kHz
MHz
MHz
MHz
MHz
VDC
VDC
ps
ms
ms
%
dB
dB
dB
dB
dB
dB
dB
dB
dB
% of FSR
% of FSR
mV
Vp-p
VDC
k
fS
fS
dB
dB
sec
dB
kHz
dB
VDC
°C
°C
NOTES: (1) Sysclk transient is the maximum frequency lock time when the PLL frequency is changed. (2) Dynamic performance specs are tested with 20kHz low
pass filter and THD+N specs are tested with 30kHz LPF, 400Hz HPF, Average-Mode. (3) SNR is tested at Infinite Zero Detection off. (4) PLL evaluations tested
with 1ns maximum jitter on the 27MHz input clock.
®
PCM1727
2


Part Number PCM1727
Description Stereo Audio DIGITAL-TO-ANALOG CONVERTER WITH PROGRAMMABLE DUAL PLL TM
Maker Burr-Brown Corporation
Total Page 15 Pages
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